chore(main): release 0.8.3 (#14)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.cursor/rules/no-synthetic-mocks.mdc

@@ -0,0 +1,38 @@
+---
+description: No synthetic OnlyOffice/Gitea mocks; prefer real integration tests
+globs:
+  - "**/*_test.go"
+alwaysApply: false
+---
+# Testing policy — no synthetic vendor mockups
+
+When authoring tests under `github.com/eslider/go-onlyoffice`, do **not**
+build `httptest.NewServer` fixtures that emulate OnlyOffice, Gitea, or any
+other third-party API. Simulated vendor responses drift from reality, give
+false green signals, and hide protocol changes.
+
+## What to do instead
+
+1. **Unit tests** — pure Go, no network. Use them for parsers, encoders,
+   struct conversions, pure helpers. No `httptest` that fakes the vendor.
+2. **Integration tests** — `//go:build integration` tag in a `*_integration_test.go`
+   file. Read credentials from env:
+   - `ONLYOFFICE_URL` / `ONLYOFFICE_HOST`
+   - `ONLYOFFICE_USER` / `ONLYOFFICE_NAME`
+   - `ONLYOFFICE_PASS` / `ONLYOFFICE_PASSWORD`
+   Call `t.Skip("ONLYOFFICE_URL not set")` when credentials are absent so the
+   regular `go test ./...` stays green in CI.
+3. **Run integration**: `go test -tags=integration ./...`.
+4. **Every new endpoint** ships with an integration test in the same PR.
+
+## Narrow exception
+
+`httptest.NewServer` is OK when verifying the **caller's own** HTTP
+behaviour (e.g. a user's handler or middleware we are wrapping). It is **not**
+OK when the test server is pretending to be OnlyOffice or Gitea.
+
+## Migrating existing tests
+
+If you find a test that handles routes like `/api/2.0/...` and returns canned
+JSON, convert it to an integration test (or delete it if the behaviour is
+already covered by integration).

.cursor/skills/office-tui-table/SKILL.md

@@ -0,0 +1,75 @@
+---
+name: office-tui-table
+description: >-
+  Build and fix Bubble Tea list tables in cmd/office (DataTable, column layout,
+  lipgloss cell rendering, pane width). Use when changing office center-pane
+  tables, column widths, ANSI styling, or list toolbar alignment.
+---
+# office TUI table (`cmd/office/ui`)
+
+## Architecture
+
+| Piece | File | Role |
+|-------|------|------|
+| `DataTable` | `table.go` | cursor, sort, viewport, header/row render |
+| Column layout | `table_layout.go` | flex vs horizontal-scroll policies |
+| Flex policy | `model/table_layout.go` | per-subject flex column key + min width |
+| Cell render | `table_render.go` | bubbles/table pattern + ANSI-safe padding |
+| Subject row style | `table_projects.go` | optional per-subject cell styles |
+| Pane sizing | `scroll.go` | `paneContentWidth`, `paneLipglossWidth` |
+| Scrollbar pad | `scrollbar.go` | `padANSIWidth` for styled lines |
+
+## Layout policies
+
+1. **Flex (all columns visible)** — register in `model.TableFlexLayoutFor`:
+   - fixed columns keep `TableColumn.Width`
+   - one `FlexColumnKey` (e.g. `title`, `email`) absorbs remainder
+   - `layoutFlexTable` shrinks fixed cols down to `minFixedColumnWidth` before flex min
+
+2. **Scrolling (default)** — `layoutScrollingTable`:
+   - horizontal `colScroll`; subset of columns visible
+   - `distributeColumnWidths` fills pane width
+
+Add a new flex subject: one entry in `TableFlexLayoutFor` only — do **not** copy `layoutProjectTable`/`layoutUserTable` per subject.
+
+## Cell rendering (required pattern)
+
+Never `style.Width(w).Padding(0,1).Render(text)` on styled cells — padding doubles display width and breaks `JoinHorizontal`.
+
+Use `renderTableCell` from `table_render.go` (matches `charmbracelet/bubbles/table`):
+
+```go
+renderTableCell(outerStyle, plainText, columnWidth)
+```
+
+- truncate **plain** text with `runewidth.Truncate` inside `renderTableCell`
+- inner box: `Width(innerW).Inline(true)` where `innerW = width - outer.GetHorizontalFrameSize()`
+- outer style carries padding, background, foreground
+
+## ANSI rules
+
+- **Never** `runewidth.Truncate` / `padDisplayWidth` on strings that already contain lipgloss ANSI codes — corrupts escapes and shows garbage like lone `ID`.
+- Use `padANSIWidth` (`charmbracelet/x/ansi`) for styled lines (headers, toolbar, scrollbar rows).
+- Do not wrap an already full-width styled header in another `lipgloss.Width()` — pad once.
+
+## Pane width
+
+Lipgloss bordered panes render **2 cells wider** than `Style.Width`:
+
+- `paneLipglossWidth(rendered) = rendered - 2` for `.Width()` on pane style
+- `paneContentWidth(rendered) = rendered - 4` for table/viewport inner size (border + padding)
+
+Pass `paneContentWidth(pw.List)` to `DataTable.SetSize` and list toolbar.
+
+## Tests to add when touching tables
+
+- `layoutFlexTable` width sum equals pane width
+- `TestProjectTableHeaderFitsPaneWidth` / per-line width at 68, 40, 30
+- `TestPadANSIWidthPreservesStyledLine`
+- `TestThreePaneRenderedWidthMatchesTerminal` top border + table lines ≤ inner width
+
+## Anti-patterns
+
+- Per-subject duplicate layout files (`table_foo.go` with copy-pasted shrink loops)
+- Skipping truncation on selected rows (causes multi-line rows in viewport)
+- Using `bubbles/table` widget directly — office needs column cursor, multi-select, subject-specific row styles

.env.example

@@ -0,0 +1,27 @@
+# OnlyOffice Workspace credentials. Used by cmd/oo (the library itself
+# does not load .env files — only its CLI does, via godotenv).
+#
+# Primary names:
+ONLYOFFICE_URL=https://office.example.com
+ONLYOFFICE_USER=
+ONLYOFFICE_PASS=
+
+# Accepted aliases (only one of each pair is needed):
+# ONLYOFFICE_HOST=
+# ONLYOFFICE_NAME=
+# ONLYOFFICE_PASSWORD=
+#
+# produktor.io operator aliases (CLI-only):
+# OO_URL=
+# OO_USER=
+# OO_PASS=
+
+# Optional defaults for calendar/project helpers:
+ONLYOFFICE_CALENDAR_ID=1
+ONLYOFFICE_PROJECT_ID=33
+
+# oo mails uses ONLYOFFICE_URL/USER/PASS above (Workspace Mail addon).
+
+# cmd/office TUI — optional Document Server for DOCX→HTML preview:
+# ONLYOFFICE_DOCS_URL=https://docs.example.com
+# ONLYOFFICE_DOCS_SECRET=

.github/workflows/release-please.yml

@@ -0,0 +1,41 @@
+name: Release Please
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+  issues: write
+  actions: write
+
+jobs:
+  release-please:
+    name: Release Please
+    runs-on: ubuntu-latest
+    steps:
+      - name: Run release-please
+        uses: googleapis/release-please-action@v4
+        id: release
+        with:
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json
+          token: ${{ secrets.RELEASE_PLEASE_TOKEN != '' && secrets.RELEASE_PLEASE_TOKEN || secrets.GITHUB_TOKEN }}
+
+      # Tags/releases created with GITHUB_TOKEN do not trigger other workflows
+      # (push:tags on Release.yml never fires). Dispatch GoReleaser explicitly.
+      - name: Trigger GoReleaser
+        if: ${{ steps.release.outputs.release_created == 'true' }}
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAG: ${{ steps.release.outputs.tag_name }}
+        run: |
+          set -euo pipefail
+          echo "Dispatching Release workflow for $TAG"
+          gh workflow run release.yml --repo "${{ github.repository }}" -f "tag=${TAG}"
+
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+      tag_name: ${{ steps.release.outputs.tag_name }}

.github/workflows/release.yml

@@ -0,0 +1,57 @@
+name: Release
+
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Git tag to release (e.g. v0.4.0)
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    name: GoReleaser
+    runs-on: ubuntu-latest
+    steps:
+      # Always clone default branch first. workflow_dispatch often races with
+      # release-please creating the tag; fetching refs/tags/X before it exists
+      # fails checkout. Retry fetch, then check out the tag.
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Checkout release tag
+        env:
+          TAG: ${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.ref_name }}
+        run: |
+          set -euo pipefail
+          echo "Releasing tag: $TAG"
+          for i in 1 2 3 4 5 6; do
+            if git fetch --force origin "refs/tags/${TAG}:refs/tags/${TAG}"; then
+              break
+            fi
+            echo "tag $TAG not visible yet (attempt $i); sleeping…"
+            sleep 10
+          done
+          git rev-parse "refs/tags/${TAG}"
+          git checkout --force "refs/tags/${TAG}"
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: stable
+          cache: true
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: "~> v2"
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -0,0 +1,50 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Test (Go ${{ matrix.go }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        go: ["1.25", "stable"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+          cache: true
+
+      - name: Verify dependencies
+        run: |
+          go mod verify
+          go mod download
+
+      - name: Check go mod tidy
+        run: |
+          go mod tidy
+          git diff --exit-code go.mod go.sum
+
+      - name: Vet
+        run: go vet ./...
+
+      - name: Build oo
+        run: go build -trimpath -buildvcs=false -o /tmp/oo ./cmd/oo
+
+      - name: Build office
+        run: go build -trimpath -buildvcs=false -o /tmp/office ./cmd/office
+
+      - name: Run tests
+        run: go test -race -shuffle=on -count=1 ./...

.gitignore

@@ -0,0 +1,11 @@
+# Local environment
+.env
+
+# Go workspace (for local multi-module dev; see inventar ASR-0008)
+go.work
+go.work.sum
+
+# Build artifacts (top-level compiled binaries; cmd/oo/ source tree is tracked)
+/oo
+/oo-cli
+/bin/

.goreleaser.yml

@@ -0,0 +1,124 @@
+version: 2
+
+project_name: go-onlyoffice
+
+before:
+  hooks:
+    - go mod tidy
+    - go mod verify
+
+builds:
+  - id: oo
+    main: ./cmd/oo
+    binary: oo
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ignore:
+      - goos: windows
+        goarch: arm64
+    flags:
+      - -trimpath
+      - -buildvcs=false
+    ldflags:
+      - -s -w
+      - -X main.version={{.Version}}
+      - -X main.commit={{.Commit}}
+      - -X main.date={{.Date}}
+  - id: office
+    main: ./cmd/office
+    binary: office
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ignore:
+      - goos: windows
+        goarch: arm64
+    flags:
+      - -trimpath
+      - -buildvcs=false
+
+archives:
+  - id: oo
+    ids: [oo]
+    name_template: "oo_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
+    format_overrides:
+      - goos: windows
+        formats: [zip]
+    files:
+      - LICENSE
+      - README.md
+      - CHANGELOG.md
+  - id: office
+    ids: [office]
+    name_template: "office_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
+    format_overrides:
+      - goos: windows
+        formats: [zip]
+    files:
+      - LICENSE
+      - README.md
+      - CHANGELOG.md
+
+checksum:
+  name_template: checksums.txt
+  algorithm: sha256
+
+snapshot:
+  version_template: "{{ .Tag }}-next"
+
+changelog:
+  use: github
+  sort: asc
+  groups:
+    - title: Features
+      regexp: '^.*?feat(\(.+\))??!?:.+$'
+      order: 0
+    - title: Bug fixes
+      regexp: '^.*?fix(\(.+\))??!?:.+$'
+      order: 1
+    - title: Performance
+      regexp: '^.*?perf(\(.+\))??!?:.+$'
+      order: 2
+    - title: Others
+      order: 999
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^ci:"
+      - "^chore:"
+      - "^style:"
+      - "^build:"
+      - "Merge pull request"
+      - "Merge branch"
+
+release:
+  draft: false
+  prerelease: auto
+  mode: replace
+  header: |
+    ## Release {{ .Tag }}
+
+    Install:
+
+    ```sh
+    go install github.com/eslider/go-onlyoffice/cmd/oo@{{ .Tag }}
+    go install github.com/eslider/go-onlyoffice/cmd/office@{{ .Tag }}
+    ```
+
+    Or download prebuilt binaries below.
+  footer: |
+    **Full Changelog**: https://github.com/eSlider/go-onlyoffice/compare/{{ .PreviousTag }}...{{ .Tag }}

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.8.3"
+}

AGENTS.md

@@ -0,0 +1,58 @@
+# AGENTS — go-onlyoffice
+
+Canonical Go client for OnlyOffice Workspace (Projects + Calendar + CRM) and the `oo` command.
+
+## Topology
+
+- **Library — flat package `onlyoffice` at repo root.** Split by *domain file*, not by subpackage, so every call site reads `c.XxxYyy()` against a single `*Client`. Files:
+  - `client.go` — `Client`, `Credentials`, `Defaults`, env helpers, `NewClient`.
+  - `request.go` — `Request`, `Query`, `Time`, `Token`, `MetaResponse`, `Permissions`.
+  - `auth.go` — `Authenticate`, `AuthenticateContext`, `InvalidateToken`, `Auth`, token lifecycle.
+  - `http.go` — transport + DRY response decoders (`ResponseArray`/`ResponseObject`/`postFormObject`/`putFormObject`/`deleteObject`).
+  - `projects.go`, `tasks.go`, `users.go`, `calendar.go`, `crm.go`, `files.go`, `mails.go` — typed / untyped domain methods. **`files.go`** — CRM opportunity upload plus **project/task Documents** (`GetProjectFiles`, `UploadProjectFile`, `GetTaskFiles`, `AttachFilesToTask`, `UploadTaskFile`, `DetachTaskFile`, `GetFile`, `RenameFile`, `DeleteFiles`, `DownloadFile`). **`mails.go`** — OnlyOffice Workspace Mail addon (`ListMailAccounts`, `ListMailFolders`, `ListMailMessages`, `GetMailMessage`, `RemoveMailMessages`).
+  - Pure stdlib + `google/go-querystring`; no UI, no dotenv.
+- **CLI — `cmd/oo/` as `package main`.** Cobra wrapper that loads `.env` via `godotenv` at startup. **Subject-based command tree** mirroring [`tea`](https://gitea.com/gitea/tea):
+  - `main.go` — entry point (docstring lists the command tree).
+  - `common.go` — `rootCmd`, `newOO`, `printTable`/`printObject`, `--output table|json` flag.
+  - `calendar.go`, `projects.go`, `projects_files.go`, `tasks.go`, `tasks_files.go`, `users.go`, `contacts.go`, `opportunities.go`, `cases.go`, `crm_tasks.go`, `apps.go` — one file per subject (or per subject facet), each registers in `init()`.
+  - CLI-only deps (`spf13/cobra`, `joho/godotenv`) stay out of the library.
+- **TUI — `cmd/office/` as `package main`.** Bubble Tea three-pane browser (module tree, selectable list, markdown preview). Reuses `cmd/internal/bootstrap` for env/auth and the root `onlyoffice` library for all API calls. UI logic in `cmd/office/ui/`; preview/formatting in `cmd/office/preview/`; list loaders in `cmd/office/fetch/`.
+  - **List table (`DataTable`)** — `cmd/office/ui/table*.go`. Column layout policies live in `cmd/office/model/table_layout.go` (`TableFlexLayoutFor`); cell rendering uses the bubbles/table inline pattern in `table_render.go` (`renderTableCell`, `padANSIWidth`). See `.cursor/skills/office-tui-table/SKILL.md` before changing center-pane tables.
+- **Shared bootstrap — `cmd/internal/bootstrap/`.** `LoadEnv()` + `NewClient(ctx)` extracted from `oo`; both binaries import it.
+- **Applications sync — `cmd/oo/applications/`.** README→CRM bridge, CV-specific; kept under `cmd/oo/` so it's clear it's internal to the binary, not a library feature.
+
+## Rules
+
+- Library must never call `godotenv.Load()` — the CLI does that.
+- New endpoints go into the library first; CLI commands are thin wrappers.
+- Prefer `ResponseObject` / `postFormObject` / `putFormObject` / `deleteObject` over hand-rolled `json.Unmarshal(responseField(...))` blocks — they exist for DRY, use them.
+- Domain split is by file, **not** by subpackage. Don't introduce `internal/` or `pkg/*` subpackages inside the library — it flattens the `*Client` call surface for a reason.
+- CLI commands follow **subject → verb** structure (`oo <subject> <verb>`), never `oo <verb>-<subject>`. Add new commands to the existing subject file if one fits; create a new `cmd/oo/<subject>.go` for a genuinely new domain.
+- Every table output goes through `printTable(headers, rows)`; every single-object through `printObject(v)`. Do not `fmt.Println` rows ad-hoc or the `--output json` flag breaks for that command.
+- No secrets in the repo; use `.env` (gitignored). Commit `.env.example` only.
+- Follow SemVer on tags; this repo is tagged at GitHub under `git@github.com:eSlider/go-onlyoffice.git`.
+
+### Testing policy (2026-04-24)
+
+**No synthetic OnlyOffice mockups.** Protocol-level behaviour must be
+verified against a real OnlyOffice instance. `httptest.NewServer` is only
+acceptable for testing the *caller's* logic that the library can't reach
+(for example, the user's own HTTP handler). Anywhere we would otherwise
+write `mux.HandleFunc("/api/2.0/...")` to emulate OnlyOffice, we write an
+**integration test** instead.
+
+- Unit tests (`*_test.go`, no build tag) — pure Go: parsers, encoders,
+  struct conversions. No network. No fake servers that emulate the vendor.
+- Integration tests (`//go:build integration` tag in `*_integration_test.go`)
+  — hit a live OnlyOffice instance. Credentials come from `ONLYOFFICE_URL`,
+  `ONLYOFFICE_USER`, `ONLYOFFICE_PASS` (aliases `_HOST`/`_NAME`/`_PASSWORD`
+  also accepted). Tests **skip** cleanly when credentials are missing so
+  `go test ./...` remains green in CI.
+- Run integration with: `go test -tags=integration ./...`.
+- New endpoints **must** ship with an integration test before merge.
+
+## Related
+
+- [`eSlider/inventar`](https://git.produktor.io/eSlider/inventar) — ASR/ADR (see ASR-0008 Go library module conventions).
+- [`eSlider/inventar-sync`](https://git.produktor.io/eSlider/inventar-sync) — OnlyOffice → Gitea issue sync, consumes this library.
+- [`produktor.io/vidarr`](https://git.produktor.io/produktor.io/vidarr) — legacy consumer being migrated from `pkg/onlyoffice` to this module.

CHANGELOG.md

@@ -0,0 +1,395 @@
+# Changelog
+
+All notable changes to this project are documented here. The format is based on
+[Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project
+adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.8.3](https://github.com/eSlider/go-onlyoffice/compare/v0.8.2...v0.8.3) (2026-07-23)
+
+
+### Bug Fixes
+
+* **ci:** dispatch GoReleaser after release-please; allow Tests dispatch ([#13](https://github.com/eSlider/go-onlyoffice/issues/13)) ([bf2fa63](https://github.com/eSlider/go-onlyoffice/commit/bf2fa637aaf0419ba5af40b25b64f9ebe24116e8))
+
+## [0.8.2](https://github.com/eSlider/go-onlyoffice/compare/v0.8.1...v0.8.2) (2026-07-23)
+
+
+### Bug Fixes
+
+* **ci:** retry tag fetch in Release workflow ([#11](https://github.com/eSlider/go-onlyoffice/issues/11)) ([31b4aa0](https://github.com/eSlider/go-onlyoffice/commit/31b4aa0d90393e6d93513284e453b7da7e92c62d))
+
+## [0.8.1](https://github.com/eSlider/go-onlyoffice/compare/v0.8.0...v0.8.1) (2026-07-23)
+
+
+### Bug Fixes
+
+* **oo:** assign owner and deadline on task create ([#9](https://github.com/eSlider/go-onlyoffice/issues/9)) ([f608207](https://github.com/eSlider/go-onlyoffice/commit/f60820734924284d6c40b46c79380a24573432f3))
+
+## [0.8.0](https://github.com/eSlider/go-onlyoffice/compare/v0.7.0...v0.8.0) (2026-07-23)
+
+
+### Features
+
+* **office:** users admin UI, table rendering, and user save fixes ([40b74eb](https://github.com/eSlider/go-onlyoffice/commit/40b74eb8abf4d63793a2cb9e59bd899734368b7e))
+* **search:** add produktor SearXNG JSON client ([79b1a6b](https://github.com/eSlider/go-onlyoffice/commit/79b1a6b2c397c2a8f8aeef7e2d8e6d81e0a93db2))
+* **search:** add produktor SearXNG JSON client ([bf144f2](https://github.com/eSlider/go-onlyoffice/commit/bf144f2bb37c44aa37ff33c6b03f59d7b5023dc7))
+
+
+### Bug Fixes
+
+* **oo:** skip junk dirs in applications Discover ([470ac93](https://github.com/eSlider/go-onlyoffice/commit/470ac938b1e388a17aabc5146cd62070dbb00587))
+* **oo:** skip junk dirs in applications Discover ([830f0c7](https://github.com/eSlider/go-onlyoffice/commit/830f0c7208f94521a59dfe6f96d496509e6b29e9))
+
+
+### Code Refactoring
+
+* **office:** generalize DataTable layout and document TUI table skill ([38932b0](https://github.com/eSlider/go-onlyoffice/commit/38932b0e0eb9696c41a48ad74c943034ebed59e5))
+
+## [0.7.0](https://github.com/eSlider/go-onlyoffice/compare/v0.6.0...v0.7.0) (2026-07-23)
+
+
+### Features
+
+* **office:** mail preview, infinite scroll, pane resize, and scrollbars ([72844df](https://github.com/eSlider/go-onlyoffice/commit/72844dfe243e04c61ea9bc4db66c55abc08d3ae8))
+* **office:** users admin UI, table rendering, and user save fixes ([40b74eb](https://github.com/eSlider/go-onlyoffice/commit/40b74eb8abf4d63793a2cb9e59bd899734368b7e))
+
+
+### Bug Fixes
+
+* **oo:** skip junk dirs in applications Discover ([470ac93](https://github.com/eSlider/go-onlyoffice/commit/470ac938b1e388a17aabc5146cd62070dbb00587))
+* **oo:** skip junk dirs in applications Discover ([830f0c7](https://github.com/eSlider/go-onlyoffice/commit/830f0c7208f94521a59dfe6f96d496509e6b29e9))
+
+
+### Code Refactoring
+
+* **office:** generalize DataTable layout and document TUI table skill ([38932b0](https://github.com/eSlider/go-onlyoffice/commit/38932b0e0eb9696c41a48ad74c943034ebed59e5))
+
+## [0.6.0](https://github.com/eSlider/go-onlyoffice/compare/v0.5.0...v0.6.0) (2026-06-24)
+
+
+### Features
+
+* **office:** table detail panes and Alt+1/2/3 layout toggles ([934af21](https://github.com/eSlider/go-onlyoffice/commit/934af21bc93a54df9f40aacb4d89468b00d7562e))
+
+
+### Documentation
+
+* CHANGELOG for office v0.5.1 release ([2985070](https://github.com/eSlider/go-onlyoffice/commit/29850701f8c9ab0c6d6427f63eaa189a1c558140))
+
+## [0.5.0](https://github.com/eSlider/go-onlyoffice/compare/v0.4.0...v0.5.0) (2026-06-24)
+
+
+### Features
+
+* **office:** scrollable panes, nav tree drill-down, and item actions ([fe2ee48](https://github.com/eSlider/go-onlyoffice/commit/fe2ee481b9c0f959b798fd40679084a8c4bc4ba2))
+
+## [0.4.0](https://github.com/eSlider/go-onlyoffice/compare/v0.3.2...v0.4.0) (2026-06-24)
+
+
+### ⚠ BREAKING CHANGES
+
+* **cli:** subject-based command tree (tea-style) + global --output flag
+* rename oo-cli → oo, split library by domain, relocate applications
+
+### Features
+
+* **cli:** subject-based command tree (tea-style) + global --output flag ([1e6d22f](https://github.com/eSlider/go-onlyoffice/commit/1e6d22f38dd7a70d4cf1b69ef0b8749b01fded1a))
+* **crm:** dedupe duplicates, fix deal titles, and add cleanup CLI ([c77519f](https://github.com/eSlider/go-onlyoffice/commit/c77519fac5ae9dffaad3f1f0ae722d969e62dde9))
+* **crm:** merge company slogan variants in dedupe grouping ([3eb649c](https://github.com/eSlider/go-onlyoffice/commit/3eb649c58bf489b221f90734e04f33063f736914))
+* **files:** project/task Documents API + oo projects|tasks files ([e03fd62](https://github.com/eSlider/go-onlyoffice/commit/e03fd6220012c73b110f1e0b02a12971174eb290))
+* **mails:** add Workspace mail CLI with pagination and parsed from fields ([1cb228e](https://github.com/eSlider/go-onlyoffice/commit/1cb228e5d83ab453660bbace5f936a77f9381fc2))
+* **office:** add Workspace TUI with shared bootstrap and test suite ([7358ff5](https://github.com/eSlider/go-onlyoffice/commit/7358ff5c326cdc873cb68b3f96d31155ecba1ee3))
+
+
+### Code Refactoring
+
+* rename oo-cli → oo, split library by domain, relocate applications ([cff8145](https://github.com/eSlider/go-onlyoffice/commit/cff8145f8c35656a77b7a36338428bf9be0eda0f))
+
+
+### Documentation
+
+* CHANGELOG 0.6.0, README, AGENTS.md, cmd/oo/main.go tree. ([e03fd62](https://github.com/eSlider/go-onlyoffice/commit/e03fd6220012c73b110f1e0b02a12971174eb290))
+
+## [Unreleased]
+
+## [0.7.0] — 2026-06-24
+
+### Added — `office` TUI
+
+- **Pane layout** — default **10% / 60% / 30%** split (nav / list / detail); drag vertical borders to resize; **Alt+1/2/3** still toggles panes.
+- **Filter mode** (`f`) — live filter on nav + list; right pane is the search query; **Esc** clears.
+- **Mail preview** — HTML bodies rendered colorized in the terminal (glamour); read-only scrollable document pane.
+- **Mail infinite scroll** — loads the next page automatically when the cursor nears the end of the list.
+- **Scrollbars** — vertical scrollbar on nav, list body, and detail preview when content exceeds the viewport.
+- **Calendar** — unified calendars + events leaf with **Type** column and date range (−7d … +30d).
+- **Tasks** — humanized status labels and relative deadlines in the list.
+- **Projects** — open/closed row colors; status toggle in the detail form; **Save** sends `responsibleId` and status via `UpdateProjectStatus`.
+
+### Changed — `office` TUI
+
+- Flattened navigation: **Projects**, **Tasks**, **By project**, **Calendar**, **CRM**, **Mail**, **Users** (removed Browse; Calendar no longer splits Calendars/Events).
+- Middle pane truncates overflowing cells with `…`; full text on the cursor or Space-selected row.
+- Detail form tab order: Title → Description → Status → Save → Delete.
+- **j/k** scrolls mail/file preview and read-only detail forms; mouse wheel scrolls detail when hovering the content area.
+
+### Added — library
+
+- `UpdateProjectStatus` — `PUT /api/2.0/project/{id}/status` for open/closed lifecycle.
+
+## [0.5.1] — 2026-06-24
+
+### Added — `office` TUI
+
+- **Alt+1 / Alt+2 / Alt+3** — show/hide left (nav), middle (table), and right (detail) panes.
+- Visible panes share **100% terminal width** evenly; pane content fills its column.
+- Tab focus skips hidden panes.
+
+### Changed — `office` TUI
+
+- Split detail pane: form/document top (~72%), CRUD action bar bottom.
+- Middle pane: multi-column table with sort, selection, and full-width columns.
+- Project list columns: ID, Title, Tasks (open/closed), Documents, Users.
+- Row selection auto-loads detail; files show document preview, entities show forms.
+
+## [0.6.0] - 2026-04-24
+
+### Added — library
+
+- **Project & task Documents API** in [`files.go`](files.go):
+  - `FileEntry`, `FolderEntry`, `ProjectFilesResponse` types.
+  - `GetProjectFiles`, `GetTaskFiles`, `GetFile`.
+  - `UploadProjectFile` — `POST /api/2.0/files/{folderId}/upload` into the
+    project's `projectFolder` (resolved via `GetProjectByID` or first folder
+    from `GetProjectFiles`).
+  - `AttachFilesToTask` — `POST .../project/task/{id}/files` with form
+    `files=<id>` (OnlyOffice expects **existing** file ids, not multipart).
+  - `UploadTaskFile` — uploads via `UploadProjectFile` using the task's
+    `projectOwner.id`, then attaches.
+  - `DetachTaskFile` — `DELETE .../files?fileid=`.
+  - `RenameFile` — `PUT /api/2.0/files/file/{id}.json` with JSON body.
+  - `DeleteFiles` — `PUT /api/2.0/files/fileops/delete.json` with `fileIds`.
+  - `DownloadFile` — `GetFile` then `GET` on `viewUrl` with `Authorization`.
+  - Helpers: `FileEntryNumericID`, `FileEntryTitle`, `SafeLocalFileName`.
+- **`putJSON`** on `*Client` in [`http.go`](http.go) for JSON PUT bodies.
+
+### Added — CLI
+
+- `oo projects files list|upload|download|rename|delete` — see
+  [`cmd/oo/projects_files.go`](cmd/oo/projects_files.go); `list` supports
+  `--folders`.
+- `oo tasks files list|upload|detach` — see [`cmd/oo/tasks_files.go`](cmd/oo/tasks_files.go).
+
+### Added — tests
+
+- [`files_integration_test.go`](files_integration_test.go) — live roundtrip
+  against OnlyOffice (same credential rules as `client_test.go`).
+- [`files_test.go`](files_test.go) + `testdata/*.json` — envelope decode unit
+  tests (no network).
+
+## [0.5.0] - 2026-04-24
+
+### Changed — CLI **BREAKING**
+
+- **Subject-based command tree** (`tea`-style). The flat `oo verb-noun`
+  layout is replaced with `oo <subject> <verb>`:
+
+  | Old | New |
+  |---|---|
+  | `oo cal-list` | `oo calendar list` |
+  | `oo cal-events` | `oo calendar events` |
+  | `oo cal-add` / `cal-delete` | `oo calendar add` / `calendar delete` |
+  | `oo task-list` | `oo tasks list` |
+  | `oo task-add` | `oo tasks create` |
+  | `oo task-update` | `oo tasks update` (deletion moved to `oo tasks delete`) |
+  | `oo subtask-add` | `oo tasks subtask add` |
+  | `oo crm-contacts` | `oo contacts list` (plus filtered `oo persons list` / `oo companies list`) |
+  | `oo crm-add-contact --company …` | `oo companies create --name …` |
+  | `oo crm-add-contact --person-first …` | `oo persons create --first …` |
+  | `oo crm-deals` | `oo opportunities list` |
+  | `oo crm-deals --stages` | `oo opportunities stages` |
+  | `oo crm-add-deal` | `oo opportunities create` |
+  | `oo crm-cases` | `oo cases list` |
+  | `oo applications-sync` | `oo applications sync` |
+
+- **New subjects**: `oo projects {list,get,milestones,create,update,delete}`,
+  `oo users {list,self}` (plus top-level `oo whoami`), `oo crm-tasks
+  {list,create,delete,categories}`, `oo cases {create,delete,member-add}`,
+  `oo contacts {get,info-add}`.
+
+- **Global `--output/-o` flag**: all list-like commands now support
+  `--output table` (default; tabwriter-aligned, truncated to 80 chars
+  per cell) and `--output json`. Nested `bidCurrency` flattened to its
+  `abbreviation` in the table view.
+
+- **Module aliases**: `oo calendar|cal`, `oo projects|prj`, `oo tasks|task`,
+  `oo persons|person`, `oo companies|company`, `oo opportunities|deals|deal`,
+  `oo cases|case`, `oo applications|apps`. `delete|rm` on every leaf that
+  removes things.
+
+### Added
+
+- `cmd/oo/common.go` — shared `printTable(headers, rows)` and
+  `printObject(v)` helpers that dispatch on the `--output` flag.
+- `cmd/oo/users.go` — exposes `oo users list`, `oo users self`, `oo whoami`
+  via the library's `GetUsers` + `SelfUserID`.
+- `cmd/oo/projects.go` — full CRUD for projects backed by `CreateProject`,
+  `UpdateProject`, `DeleteProject`, `GetProjectByID`, `GetProjectMilestones`.
+- `cmd/oo/crm_tasks.go` — dedicated `oo crm-tasks` subject (distinct from
+  project `oo tasks`).
+- `cmd/oo/contacts.go` — unified contacts/persons/companies with shared
+  list/filter implementation.
+
+### Changed — library (minor)
+
+- `newOO` in `cmd/oo/common.go` now calls `AuthenticateContext(cmd.Context())`
+  so CLI aborts propagate to the auth request.
+
+## [0.4.0] - 2026-04-24
+
+### Changed — project structure
+
+- **Library files reorganised by domain** (mechanical split; zero API surface
+  change). The former monolithic `onlyoffice.go` (687 LOC) is now split into:
+  - `client.go` — `Client`, `Credentials`, `Defaults`, env helpers, `NewClient`.
+  - `request.go` — `Request`, `Query`, `Time`, `Token`, `MetaResponse`,
+    `Permissions`, `requestBodyReader`.
+  - `auth.go` — `Authenticate`, `AuthenticateContext`, `InvalidateToken`,
+    `Auth`, `ensureToken`, `authHeader`, `tokenValid`.
+  - `http.go` — transport helpers and DRY response decoders
+    (`ResponseArray`, `ResponseObject`, `postFormObject`, `putFormObject`,
+    `deleteObject`, `unmarshalResponseObject`).
+  - `projects.go` — `Project`, `Projects`, `Milestone`, `ProjectOwner` +
+    `GetProjects` / `CreateProject` / `UpdateProject` / `DeleteProject` /
+    `GetProjectByID` / `GetProjectMilestones`.
+  - `tasks.go` — `Task`, `ProjectTaskStatus`, `TaskPriority`,
+    `ProjectGetTasksRequest` et al. **plus** the form-encoded helpers
+    formerly in `tasks_extra.go` (`ListTasks`, `AddTask`, `AddSubtask`,
+    `UpdateTaskStatus`, `DeleteTask`, `GetTaskByID`).
+  - `users.go` — `User`, `Contact`, `Group`, `GetUsers`, `SelfUserID`.
+  - `calendar.go`, `crm.go`, `files.go` — unchanged in scope, refactored
+    through the new DRY helpers.
+  - `httpx.go` → **renamed** `http.go`.
+  - `onlyoffice.go` and `tasks_extra.go` — **deleted** (content redistributed).
+
+### Changed — CLI **BREAKING**
+
+- **Binary renamed `oo-cli` → `oo`.** Install with
+  `go install github.com/eslider/go-onlyoffice/cmd/oo@latest`.
+- **Package path `cmd/oo-cli` → `cmd/oo`.** The old path is removed.
+- **`internal/cli` is gone.** Cobra commands now live directly under
+  `cmd/oo/` as `package main`, split by domain: `calendar.go`, `crm.go`,
+  `tasks.go`, `apps.go`, `common.go`. Rationale: cobra wiring is a CLI-only
+  concern and does not belong inside a `pkg-level internal/`.
+- **`internal/applications` → `cmd/oo/applications/`.** This is a
+  CV-specific CRM workflow — not a general OnlyOffice feature — and is only
+  consumed by the `oo` CLI. Keeping it under `cmd/oo/` prevents accidental
+  external adoption and makes the coupling explicit.
+- **`examples/applications/` removed.** It imported an internal package,
+  which was a policy smell. Remaining examples (`basic`, `calendar`, `crm`,
+  `subtasks`) use only the exported library surface.
+
+### Added
+
+- `(*Client).ResponseObject` — GET-and-decode-object counterpart to the
+  existing `ResponseArray`.
+- `(*Client).postFormObject` / `putFormObject` / `deleteObject` — eliminate
+  the ~15 identical "form request → `responseField` → `json.Unmarshal`"
+  blocks previously duplicated across `crm.go` / `tasks_extra.go` /
+  `calendar.go` / `files.go`.
+
+### Migration
+
+External library consumers: **no changes required**. The module path
+(`github.com/eslider/go-onlyoffice`), the `onlyoffice` package name, and
+every exported symbol are unchanged.
+
+CLI users: replace `oo-cli` with `oo` in scripts and CI. The command set
+and flags are identical.
+
+## [0.3.2] - 2026-04-24
+
+### Fixed
+
+- `Project.String()` no longer interprets the title as a format string
+  (`fmt.Sprintf(*p.Title)`) and is now nil-safe on a zero-value `Project`.
+- `internal/applications.buildSummary` no longer panics at regex compile time
+  on Go 1.23+ — the previous `(?= ...)` lookahead is replaced with an RE2-safe
+  non-capturing trailing delimiter.
+
+### Changed
+
+- `Client.Query` now routes token acquisition through the shared
+  `ensureToken` path instead of duplicating the auth-expiry check inline.
+- Request body marshalling is consolidated into an unexported
+  `requestBodyReader` helper (DRY; no change to the public surface).
+- The `Request.Debug` field is preserved for backwards compatibility but no
+  longer changes behaviour — both branches used to unmarshal into the same
+  target value. We'll remove the field in a future major release.
+
+### Tests
+
+- Deleted `httptest.NewServer` fixtures that emulated OnlyOffice protocol
+  endpoints. Replaced them with:
+  - pure-Go unit tests in `unit_test.go` (no network);
+  - real integration tests in `client_test.go` guarded by
+    `//go:build integration`. Run with
+    `go test -tags=integration ./...`. Tests skip cleanly when
+    `ONLYOFFICE_URL/USER/PASS` (or aliases) are absent.
+- New policy documented in `AGENTS.md` and
+  `.cursor/rules/no-synthetic-mocks.mdc`.
+
+## [0.3.1] - 2026-04-24
+
+### Added
+
+- `AuthenticateContext(ctx)` — context-aware auth that honours cancellation and
+  deadlines. Preferred entry point for long-running syncs (cron, watchers).
+- `InvalidateToken()` — clears the cached token to force re-auth on the next
+  request. Use this to recover from a mid-sync 401 when the server has revoked
+  the session while the local `Expires` timestamp still looks fresh.
+
+### Notes
+
+- Plain `Authenticate()` is unchanged and remains a convenience wrapper around
+  `AuthenticateContext(context.Background())`.
+- No breaking changes; a patch release.
+
+## [0.3.0] - 2026-04-24
+
+### Added
+
+- Calendar helpers: `ListCalendars`, `ListEvents`, `AddEvent`, `DeleteEvent`.
+- CRM helpers: contacts (`ListContacts`, `GetContact`, `FindCompany`, `FindPerson`,
+  `CreateCompany`, `CreatePerson`, `AddContactInfo`, `DeleteContact`), deals
+  (`ListOpportunities`, `GetOpportunity`, `CreateOpportunity`,
+  `AddOpportunityMember`, `ListDealStages`, `DeleteOpportunity`), cases
+  (`ListCases`, `CreateCase`, `AddCaseMember`, `DeleteCase`), CRM tasks
+  (`ListCRMTasks`, `CreateCRMTask`, `DeleteCRMTask`, `ListTaskCategories`), and
+  history notes (`AddHistoryNote`).
+- Project task extras: `GetProjectByID`, `ListTasks`, `ListAllTasks`,
+  `GetTaskByID`, `AddTask`, `AddSubtask`, `UpdateTaskStatus`, `DeleteTask`.
+- File upload: `UploadOpportunityFile` (multipart).
+- `SelfUserID` cached lookup of `people/@self`.
+- `Defaults` struct + `SetDefaults` + `GetEnvironmentDefaults` for optional
+  calendar/project fallbacks.
+- Alias env vars accepted by `GetEnvironmentCredentials`:
+  `ONLYOFFICE_HOST` / `ONLYOFFICE_NAME` / `ONLYOFFICE_PASSWORD`.
+- Public `Authenticate()` that primes the token eagerly.
+- Bundled CLI: `cmd/oo-cli` (Cobra) with commands `cal-list`, `cal-events`,
+  `cal-add`, `cal-delete`, `task-list`, `task-add`, `subtask-add`,
+  `task-update`, `crm-contacts`, `crm-add-contact`, `crm-deals`,
+  `crm-add-deal`, `crm-cases`, `applications-sync`.
+- httptest-based unit tests for form / multipart / CRM helpers.
+
+### Changed
+
+- The `onlyoffice.Client` struct gained unexported fields (`defaults`, `selfID`,
+  `noteCatID`); the public API is unchanged and remains backwards compatible.
+
+## [0.2.0] - earlier
+
+- Badges, docs expansion (Gitea sync use case, Gantt/PM workflows).
+
+## [0.1.0] - earlier
+
+- Initial release: OnlyOffice Project Management API client.

README.md

@@ -1,15 +1,108 @@
 # go-onlyoffice
 
-Go client library for the [OnlyOffice](https://www.onlyoffice.com/) Project Management API.
+[![Go Reference](https://pkg.go.dev/badge/github.com/eslider/go-onlyoffice.svg)](https://pkg.go.dev/github.com/eslider/go-onlyoffice)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+[![Go](https://img.shields.io/badge/Go-1.22+-00ADD8.svg)](https://go.dev)
+[![Tests](https://github.com/eSlider/go-onlyoffice/actions/workflows/test.yml/badge.svg)](https://github.com/eSlider/go-onlyoffice/actions/workflows/test.yml)
+[![Latest Release](https://img.shields.io/github/v/tag/eSlider/go-onlyoffice?sort=semver&label=release)](https://github.com/eSlider/go-onlyoffice/releases)
+[![GitHub Stars](https://img.shields.io/github/stars/eSlider/go-onlyoffice?style=social)](https://github.com/eSlider/go-onlyoffice/stargazers)
 
-## Features
+Go client library for the [OnlyOffice](https://www.onlyoffice.com/) Project Management API — manage projects, tasks, subtasks, milestones, and users programmatically.
 
-- Token-based authentication with automatic renewal
-- Project CRUD operations (create, read, update, delete)
-- Task management (create, update, list, filter)
-- Milestone management
-- User listing
-- Query parameter serialization via struct tags
+Pairs with [go-gitea-helpers](https://github.com/eSlider/go-gitea-helpers) to bridge developer issue trackers with CRM-grade project management for Gantt charts, resource planning, and executive reporting.
+
+## Architecture
+
+```mermaid
+graph TB
+    subgraph "Developer Tools"
+        GIT["Gitea / GitHub<br/>Issues, PRs, Milestones"]
+    end
+
+    subgraph "go-onlyoffice"
+        CL["Client"]
+        AUTH["Auth<br/>Token-based"]
+        PRJ["Projects"]
+        TSK["Tasks & Subtasks"]
+        MS["Milestones"]
+        USR["Users"]
+    end
+
+    subgraph "OnlyOffice CRM"
+        GANTT["Gantt Charts"]
+        PLAN["Project Planning"]
+        RPT["Reports & Dashboards"]
+        PM["PM Workflow"]
+    end
+
+    GIT -->|"sync issues"| CL
+    CL --> AUTH
+    AUTH --> PRJ
+    AUTH --> TSK
+    AUTH --> MS
+    AUTH --> USR
+
+    PRJ --> GANTT
+    TSK --> GANTT
+    MS --> PLAN
+    TSK --> RPT
+    PRJ --> PM
+```
+
+## The Problem: Developers vs. Project Managers
+
+```mermaid
+graph LR
+    subgraph "Engineering World"
+        DEV["Developers"]
+        GITEA["Gitea / GitHub<br/>Issues & PRs"]
+        CODE["Code Reviews"]
+    end
+
+    subgraph "Management World"
+        PM["Project Managers"]
+        OO["OnlyOffice CRM<br/>Gantt · Planning · Reports"]
+        EXEC["Executives<br/>Status Reports"]
+    end
+
+    DEV -->|"create issues"| GITEA
+    GITEA -.->|"❌ invisible"| PM
+    PM -->|"manual copy"| OO
+    OO --> EXEC
+
+    style GITEA fill:#f96,stroke:#333
+    style OO fill:#69f,stroke:#333
+```
+
+**Without sync:** Project managers manually copy issue titles, deadlines, and status from Gitea into OnlyOffice. Developers don't update the CRM. Gantt charts rot. Reports lie.
+
+**With sync:** Issues flow automatically from Gitea to OnlyOffice with start dates, deadlines, and status. PMs get live Gantt charts. Developers keep working in Git.
+
+```mermaid
+graph LR
+    subgraph "Engineering World"
+        DEV["Developers"]
+        GITEA["Gitea / GitHub"]
+    end
+
+    subgraph "Sync Bridge"
+        SYNC["go-onlyoffice<br/>+ go-gitea-helpers"]
+    end
+
+    subgraph "Management World"
+        OO["OnlyOffice CRM"]
+        GANTT["Gantt Charts ✓"]
+        RPT["Reports ✓"]
+    end
+
+    DEV -->|"create/close issues"| GITEA
+    GITEA -->|"auto-sync"| SYNC
+    SYNC -->|"create/update tasks"| OO
+    OO --> GANTT
+    OO --> RPT
+
+    style SYNC fill:#4a4,stroke:#333,color:#fff
+```
 
 ## Installation
 
@@ -17,7 +110,143 @@ Go client library for the [OnlyOffice](https://www.onlyoffice.com/) Project Mana
 go get github.com/eslider/go-onlyoffice
 ```
 
-## Usage
+For Gitea sync (optional):
+
+```bash
+go get github.com/eslider/go-gitea-helpers
+```
+
+## Quick Start
+
+### Connect and List Projects
+
+```go
+client := onlyoffice.NewClient(onlyoffice.GetEnvironmentCredentials())
+
+projects, _ := client.GetProjects()
+for _, p := range projects {
+    fmt.Printf("[%d] %s — %d tasks\n", *p.ID, *p.Title, safeInt(p.TaskCountTotal))
+}
+```
+
+### Create a Project with Tasks and Deadlines
+
+```go
+// Create a project
+project, _ := client.CreateProject(onlyoffice.NewProjectRequest{
+    Title:       "Q1 2026 Release",
+    Description: "Backend API v2 + mobile app redesign",
+})
+
+// Create tasks with start/end dates (for Gantt chart)
+client.CreateProjectTask(onlyoffice.NewProjectTaskRequest{
+    ProjectId:   *project.ID,
+    Title:       "Design API schema",
+    Description: "OpenAPI 3.1 spec for all endpoints",
+    StartDate:   onlyoffice.Time(time.Now()),
+    Deadline:    onlyoffice.Time(time.Now().AddDate(0, 0, 14)),
+    Priority:    1, // High
+})
+
+client.CreateProjectTask(onlyoffice.NewProjectTaskRequest{
+    ProjectId:   *project.ID,
+    Title:       "Implement auth service",
+    Description: "JWT + OAuth2 + refresh tokens",
+    StartDate:   onlyoffice.Time(time.Now().AddDate(0, 0, 14)),
+    Deadline:    onlyoffice.Time(time.Now().AddDate(0, 1, 0)),
+})
+```
+
+### List and Filter Tasks
+
+```go
+// Get all tasks for a project
+tasks, _ := client.GetTasks(onlyoffice.NewProjectGetTasksRequest(*project.ID))
+
+for _, t := range tasks {
+    status := "open"
+    if t.Status != nil && *t.Status == onlyoffice.ProjectTaskStatusClosed {
+        status = "closed"
+    }
+    fmt.Printf("  [%s] %s", status, *t.Title)
+    if t.Deadline != nil {
+        fmt.Printf(" (due: %s)", t.Deadline.Format("2006-01-02"))
+    }
+    fmt.Println()
+}
+```
+
+### Update Task Status and Dates
+
+```go
+// Close a task and set actual end date
+client.UpdateProjectTask(onlyoffice.ProjectTaskUpdateRequest{
+    ID:       taskID,
+    Title:    "Design API schema",
+    Status:   onlyoffice.ProjectTaskStatusClosed,
+    Deadline: &onlyoffice.Time(time.Now()),
+})
+```
+
+### Get Milestones and Task Progress
+
+```go
+milestones, _ := client.GetProjectMilestones(project)
+for _, ms := range milestones {
+    active := int64(0)
+    closed := int64(0)
+    if ms.ActiveTaskCount != nil { active = *ms.ActiveTaskCount }
+    if ms.ClosedTaskCount != nil { closed = *ms.ClosedTaskCount }
+    total := active + closed
+
+    fmt.Printf("Milestone: %s — %d/%d tasks done", *ms.Title, closed, total)
+    if ms.Deadline != nil {
+        fmt.Printf(" (deadline: %s)", ms.Deadline.Format("2006-01-02"))
+    }
+    fmt.Println()
+}
+```
+
+---
+
+## Use Case: Gitea → OnlyOffice Sync
+
+The primary use case is **bridging developer workflows with project management**. Developers create issues in Gitea; a sync job automatically mirrors them as OnlyOffice tasks with proper start/end dates, enabling PMs to work with Gantt charts without developers leaving their Git workflow.
+
+### Sync Flow
+
+```mermaid
+sequenceDiagram
+    participant Dev as Developer
+    participant Gitea
+    participant Sync as Sync Job
+    participant OO as OnlyOffice
+
+    Dev->>Gitea: Create issue "Add OAuth2"
+    Note over Gitea: issue.Created = Feb 13<br/>issue.Deadline = Mar 1
+
+    Sync->>Gitea: GET /repos/{org}/*/issues
+    Gitea-->>Sync: issues list (paginated)
+
+    Sync->>OO: GET /api/2.0/project/filter.json
+    OO-->>Sync: projects list
+
+    Sync->>Sync: Match Gitea labels → OO projects
+
+    alt Issue not yet in OnlyOffice
+        Sync->>OO: POST /api/2.0/project/{id}/task.json
+        Note over OO: Task created:<br/>Start: Feb 13, End: Mar 1<br/>Description includes Gitea URL
+    else Issue already synced
+        Sync->>OO: PUT /api/2.0/project/task/{id}.json
+        Note over OO: Title, status, dates updated
+    end
+
+    Dev->>Gitea: Close issue "Add OAuth2"
+    Sync->>OO: PUT status → Closed
+    Note over OO: Gantt chart updates automatically
+```
+
+### Sync Example
 
 ```go
 package main
@@ -25,68 +254,651 @@ package main
 import (
     "fmt"
     "log"
+    "os"
+    "strings"
 
+    gitea "github.com/eslider/go-gitea-helpers"
     onlyoffice "github.com/eslider/go-onlyoffice"
 )
 
 func main() {
-    client := onlyoffice.NewClient(onlyoffice.Credentials{
-        Url:      "https://your-onlyoffice.example.com",
-        User:     "admin@example.com",
-        Password: "your-password",
-    })
+    // Connect to both services
+    oo := onlyoffice.NewClient(onlyoffice.GetEnvironmentCredentials())
+    gc, _ := gitea.NewClient(gitea.GetEnvironmentConfig())
+    owner := os.Getenv("GITEA_OWNER")
 
-    // List projects
-    projects, err := client.GetProjects()
-    if err != nil {
-        log.Fatal(err)
+    // Load all Gitea issues and OnlyOffice projects
+    repos, _ := gc.GetAllReposIssues(owner)
+    projects, _ := oo.GetProjects()
+
+    for repoName, repo := range repos {
+        // Find matching OnlyOffice project by name
+        project := projects.Get(repoName)
+        if project == nil {
+            fmt.Printf("SKIP %s (no matching OO project)\n", repoName)
+            continue
         }
-    for _, p := range projects {
-        fmt.Printf("Project: %s (ID: %d)\n", *p.Title, *p.ID)
+
+        // Load existing tasks
+        tasks, _ := oo.GetTasks(onlyoffice.NewProjectGetTasksRequest(*project.ID))
+
+        for _, issue := range repo.Issues {
+            // Check if issue is already synced (URL in description)
+            existing := findSyncedTask(tasks, issue.HTMLURL)
+
+            if existing != nil {
+                // Update existing task
+                status := onlyoffice.ProjectTaskStatusOpen
+                if issue.State == "closed" {
+                    status = onlyoffice.ProjectTaskStatusClosed
+                }
+
+                oo.UpdateProjectTask(onlyoffice.ProjectTaskUpdateRequest{
+                    ID:        *existing.ID,
+                    Title:     issue.Title,
+                    Status:    status,
+                    StartDate: timePtr(onlyoffice.Time(issue.Created)),
+                    Deadline:  deadlineFromIssue(issue),
+                })
+                fmt.Printf("  UPDATED: %s\n", issue.Title)
+            } else {
+                // Create new task
+                status := onlyoffice.ProjectTaskStatusOpen
+                if issue.State == "closed" {
+                    status = onlyoffice.ProjectTaskStatusClosed
+                }
+
+                oo.CreateProjectTask(onlyoffice.NewProjectTaskRequest{
+                    ProjectId:   *project.ID,
+                    Title:       issue.Title,
+                    Description: issue.Body + "\n\nURL:" + issue.HTMLURL,
+                    StartDate:   onlyoffice.Time(issue.Created),
+                    Deadline:    *deadlineFromIssue(issue),
+                    Status:      status,
+                })
+                fmt.Printf("  CREATED: %s\n", issue.Title)
+            }
+        }
+    }
+}
+
+// findSyncedTask checks task descriptions for the Gitea issue URL.
+func findSyncedTask(tasks []*onlyoffice.Task, issueURL string) *onlyoffice.Task {
+    for _, t := range tasks {
+        if t.Description != nil && strings.Contains(*t.Description, issueURL) {
+            return t
+        }
+    }
+    return nil
+}
+```
+
+### What Project Managers Get
+
+Once synced, OnlyOffice provides without any developer intervention:
+
+| Feature | How It Works |
+|---|---|
+| **Gantt Charts** | Tasks have `StartDate` and `Deadline` from Gitea issue created/due dates |
+| **Status Tracking** | Open/closed status mirrors Gitea issue state in real time |
+| **Milestone Planning** | Gitea milestones map to OnlyOffice milestones with progress % |
+| **Resource Allocation** | Task assignees sync so PMs see who's working on what |
+| **Sprint Reports** | Filter by date range to generate sprint/release reports |
+| **Cross-Repo View** | All repos' issues appear as tasks in a unified project board |
+| **Executive Dashboards** | Project progress, overdue tasks, team workload at a glance |
+
+### Recommended Sync Architecture
+
+```mermaid
+graph TB
+    subgraph "Trigger Options"
+        CRON["Cron Job<br/>every 15 min"]
+        HOOK["Gitea Webhook<br/>on issue events"]
+        CLI["Manual CLI<br/>on-demand"]
+    end
+
+    subgraph "Sync Engine"
+        S["Sync Job"]
+        MAP["Label → Project<br/>Mapping"]
+        MATCH["URL-based Task<br/>Matching"]
+        DATE["Date Translation<br/>Created → Start<br/>Deadline → End<br/>Closed → Actual End"]
+    end
+
+    subgraph "Output"
+        OO["OnlyOffice Tasks"]
+        GANTT["Gantt Timeline"]
+        REP["PM Reports"]
+    end
+
+    CRON --> S
+    HOOK --> S
+    CLI --> S
+
+    S --> MAP
+    S --> MATCH
+    S --> DATE
+
+    MAP --> OO
+    MATCH --> OO
+    DATE --> OO
+    OO --> GANTT
+    OO --> REP
+```
+
+---
+
+## Use Case: Task Lifecycle Management
+
+### Creating Tasks with Full Metadata
+
+```go
+task, _ := client.CreateProjectTask(onlyoffice.NewProjectTaskRequest{
+    ProjectId:   projectID,
+    Title:       "Implement payment gateway",
+    Description: "Integrate Stripe API for subscription billing",
+    StartDate:   onlyoffice.Time(time.Date(2026, 3, 1, 0, 0, 0, 0, time.UTC)),
+    Deadline:    onlyoffice.Time(time.Date(2026, 3, 15, 0, 0, 0, 0, time.UTC)),
+    Priority:    1, // High
+    MilestoneId: milestoneID,
+    Notify:      true,
+})
+```
+
+### Tracking Task Progress
+
+```go
+tasks, _ := client.GetTasks(onlyoffice.NewProjectGetTasksRequest(projectID))
+
+open, closed := 0, 0
+var overdue []*onlyoffice.Task
+
+for _, t := range tasks {
+    if t.Status != nil && *t.Status == onlyoffice.ProjectTaskStatusClosed {
+        closed++
+    } else {
+        open++
+        if t.Deadline != nil && t.Deadline.Before(time.Now()) {
+            overdue = append(overdue, t)
+        }
+    }
+}
+
+fmt.Printf("Progress: %d/%d done (%.0f%%)\n", closed, open+closed,
+    float64(closed)/float64(open+closed)*100)
+
+if len(overdue) > 0 {
+    fmt.Printf("⚠ %d overdue tasks:\n", len(overdue))
+    for _, t := range overdue {
+        fmt.Printf("  - %s (due: %s)\n", *t.Title, t.Deadline.Format("2006-01-02"))
     }
 }
 ```
 
-Or load credentials from environment variables:
+### Subtask Management
+
+Tasks support subtasks for breaking work into smaller pieces:
 
 ```go
-client := onlyoffice.NewClient(onlyoffice.GetEnvironmentCredentials())
+type Task struct {
+    ID           *int          `json:"id"`
+    Title        *string       `json:"title"`
+    StartDate    *time.Time    `json:"startDate"`
+    Deadline     *time.Time    `json:"deadline"`
+    Description  *string       `json:"description"`
+    Priority     *int          `json:"priority"`       // High=1, Normal=0, Low=-1
+    Status       *ProjectTaskStatus `json:"status"`    // Open=1, Closed=2
+    Subtasks     []any         `json:"subtasks"`
+    MilestoneID  *int64        `json:"milestoneId"`
+    Responsibles []*User       `json:"responsibles"`   // Assigned team members
+    // ... timestamps, permissions
+}
 ```
 
-## Environment Variables
-
-| Variable | Description |
-|---|---|
-| `ONLYOFFICE_URL` | OnlyOffice instance URL |
-| `ONLYOFFICE_USER` | Login email or username |
-| `ONLYOFFICE_PASS` | Password |
+---
 
 ## API Reference
 
 ### Client
 
-- `NewClient(credentials)` - Create a new client
-- `GetEnvironmentCredentials()` - Load credentials from env vars
-- `Auth(credentials)` - Authenticate and get token
-- `Query(request, result)` - Execute an API request
+| Function | Description |
+|---|---|
+| `NewClient(credentials)` | Create a new API client |
+| `GetEnvironmentCredentials()` | Load from `ONLYOFFICE_*` env vars |
+| `Auth(credentials)` | Authenticate and get token |
+| `Query(request, result)` | Execute raw API request |
 
 ### Projects
 
-- `GetProjects()` - List all projects
-- `CreateProject(req)` - Create a new project
-- `UpdateProject(req)` - Update a project
-- `DeleteProject(id)` - Delete a project
-- `GetProjectMilestones(project)` - Get milestones for a project
+| Method | Description |
+|---|---|
+| `GetProjects()` | List all projects |
+| `CreateProject(req)` | Create a new project |
+| `UpdateProject(req)` | Update project details |
+| `DeleteProject(id)` | Delete a project |
+| `GetProjectMilestones(project)` | Get milestones with task counts |
 
 ### Tasks
 
-- `GetTasks(req)` - List tasks with filtering
-- `CreateProjectTask(req)` - Create a new task
-- `UpdateProjectTask(req)` - Update a task
+| Method | Description |
+|---|---|
+| `GetTasks(req)` | List tasks with filtering |
+| `CreateProjectTask(req)` | Create task with dates, priority, milestone |
+| `UpdateProjectTask(req)` | Update title, status, dates, priority |
+
+### Task Fields for Gantt
+
+| Field | Type | Purpose |
+|---|---|---|
+| `StartDate` | `*time.Time` | Gantt bar start |
+| `Deadline` | `*time.Time` | Gantt bar end |
+| `Status` | `ProjectTaskStatus` | Open (1) / Closed (2) |
+| `Priority` | `*int` | High (1) / Normal (0) / Low (-1) |
+| `MilestoneID` | `*int64` | Groups tasks under milestones |
+| `Responsibles` | `[]*User` | Assigned team members |
+| `Subtasks` | `[]any` | Sub-items within a task |
 
 ### Users
 
-- `GetUsers()` - List all users
+| Method | Description |
+|---|---|
+| `GetUsers()` | List all users with profiles |
+
+### Helper Types
+
+| Type | Description |
+|---|---|
+| `Projects` | `[]*Project` with `.Get(title)` lookup |
+| `Time` | `time.Time` wrapper with OnlyOffice JSON format |
+| `Task.GetGiteaIssueLink()` | Extract Gitea URL from task description |
+
+### Calendar, CRM, Subtasks, File upload (v0.2+)
+
+Since v0.2 the library also exposes OnlyOffice Workspace surfaces beyond
+Projects: Calendar events, CRM (Contacts, Companies, Opportunities, Cases,
+Tasks, History notes) and opportunity file uploads. These helpers return
+untyped `map[string]any` for flexibility; callers that need typed structs
+should use the typed Project/Task API above.
+
+```go
+client := onlyoffice.NewClient(onlyoffice.GetEnvironmentCredentials())
+client.SetDefaults(onlyoffice.GetEnvironmentDefaults()) // optional
+ctx := context.Background()
+
+// Calendar
+events, _ := client.ListEvents(ctx, "2025-01-01", "2025-12-31")
+client.AddEvent(ctx, "", "Interview", "2025-06-10T10:00:00Z", "2025-06-10T11:00:00Z", "", false)
+
+// CRM
+deals, total, _ := client.ListOpportunities(ctx, 50, 0)
+company, _ := client.FindCompany(ctx, "ACME")
+
+// Subtasks (form-encoded)
+client.AddSubtask(ctx, "4242", "Prepare CV")
+```
+
+### oo (bundled CLI)
+
+A ready-to-use [Cobra](https://github.com/spf13/cobra) CLI wrapping the
+library lives under [`cmd/oo`](cmd/oo/). The command tree is **subject-based**,
+mirroring the [`tea`](https://gitea.com/gitea/tea) CLI:
+
+```bash
+go install github.com/eslider/go-onlyoffice/cmd/oo@latest
+
+# Global: every list-style command takes -o table|json (default: table)
+oo whoami
+oo users list
+oo calendar events --start 2026-04-24 --end 2026-05-01
+oo projects list
+oo projects get 33
+oo tasks list --all --verbose
+oo tasks subtask add 4242 "Prepare CV"
+oo persons create --first Jane --last Doe --email jane@example.com
+oo companies create --name "Acme GmbH" --website https://acme.com
+oo opportunities list
+oo opportunities stages
+oo cases list
+oo crm-tasks categories
+oo applications sync --path ./applications/2026 --apply
+```
+
+### office (TUI)
+
+Terminal UI for browsing OnlyOffice Workspace — module tree (left), selectable
+lists (center), and markdown preview (right). Uses the same `.env` credentials
+as `oo`. Lives under [`cmd/office`](cmd/office/).
+
+```bash
+go install github.com/eslider/go-onlyoffice/cmd/office@latest
+office
+```
+
+| Key | Action |
+|---|---|
+| `Tab` | Next pane (menu → list → preview) |
+| `Shift+Tab` | Previous pane |
+| `↑↓` / `j` / `k` | Navigate / scroll within focused pane |
+| `Enter` / `→` | Expand tree branch or open leaf list |
+| `Space` | Toggle multi-select on list row |
+| `Enter` / `a` | Action menu (view, delete, download, …) |
+| `r` | Refresh current list |
+| `q` | Quit |
+
+Navigate the **tree** on the left: expand modules (`▸`/`▾`), drill to a **leaf** (marked `•`) — the center list loads only at the last level. Under **Projects → By project**, live projects appear as subnodes with **Tasks** and **Files** leaves.
+
+Optional env for DOCX preview via Document Server (see [`.env.example`](.env.example)):
+
+```bash
+ONLYOFFICE_DOCS_URL=https://docs.example.com
+ONLYOFFICE_DOCS_SECRET=…   # when JWT signing is enabled
+```
+
+Spreadsheet files: inline CSV/JSON preview in the right pane; install
+[`vex`](https://github.com/CodeOne45/vex-tui) on `PATH` for full-screen
+xlsx/csv viewing (`v` on a file row — coming in next iteration).
+
+Integration tests for list loaders and preview (live API only — no mocks):
+
+```bash
+go test -tags=integration ./cmd/office/fetch/... ./cmd/office/preview/...
+```
+
+**Project / task documents (`oo`):**
+
+```bash
+# Project Documents (files module)
+oo projects files list 33
+oo projects files upload 33 ./notes.md
+oo projects files download 12345 --to ./copy.md
+oo projects files rename 12345 notes-v2.md
+oo projects files delete 12345
+oo tasks files list 208
+oo tasks files upload 208 ./cv.pdf
+oo tasks files detach 208 12345
+```
+
+| Subject | Verbs |
+|---|---|
+| `calendar` | `list`, `events`, `add`, `delete` |
+| `projects` | `list`, `get`, `milestones`, `create`, `update`, `delete`, **`files`** (`list`, `upload`, `download`, `rename`, `delete`) |
+| `tasks` | `list`, `get`, `create`, `update`, `delete`, `subtask add`, **`files`** (`list`, `upload`, `detach`) |
+| `users` | `list`, `self` (alias: `oo whoami`) |
+| `contacts` | `list`, `get`, `delete`, `info-add` |
+| `persons` | `list` (filtered), `create`, `delete` |
+| `companies` | `list` (filtered), `create`, `delete` |
+| `contacts` | `list`, `get`, `delete`, `info-add`, `dedupe-info` |
+| `persons` | `list`, `create`, `delete`, `dedupe` |
+| `companies` | `list`, `create`, `delete`, `dedupe`, `dedupe-persons` |
+| `opportunities` | `list`, `get`, `create`, `delete`, `stages`, `member-add`, `dedupe`, `dedupe-members`, `fix-titles` |
+| `crm` | `cleanup` |
+| `mails` | `accounts`, `folders`, `list`, `get`, `delete` |
+| `cases` | `list`, `create`, `delete`, `member-add` |
+| `crm-tasks` | `list`, `create`, `delete`, `categories` |
+| `applications` | `sync` |
+
+The CLI reads only `.env` from the current working directory (godotenv is a
+CLI-only concern — the library itself never loads dotfiles).
+
+Canonical `ONLYOFFICE_*` variables win over aliases. For produktor.io operator
+files, `OO_URL` / `OO_USER` / `OO_PASS` are accepted as CLI-only aliases for
+`ONLYOFFICE_URL` / `ONLYOFFICE_USER` / `ONLYOFFICE_PASS`.
+
+Run `oo --help` or `oo <subject> --help` for the full command reference.
+
+> **0.5.0 migration note:** the command tree was flattened per-subject. Old
+> flat names (`oo cal-events`, `oo task-list`, `oo crm-contacts`,
+> `oo applications-sync`, …) were replaced by subject-based equivalents
+> (`oo calendar events`, `oo tasks list`, `oo contacts list`,
+> `oo applications sync`). Flags on leaf commands are unchanged.
+
+## oo CLI use cases
+
+The `oo` binary is the day-to-day operator interface. It loads credentials from
+`.env` in the **current working directory** (copy from [`.env.example`](.env.example)):
+
+```bash
+cp .env.example .env
+# ONLYOFFICE_URL=https://office.example.com
+# ONLYOFFICE_USER=you@example.com
+# ONLYOFFICE_PASS=…
+
+go install github.com/eslider/go-onlyoffice/cmd/oo@latest
+oo whoami
+```
+
+Every list command accepts `-o table` (default) or `-o json` for scripting.
+
+### CRM cleanup after imports or sync drift
+
+**Problem:** Duplicate companies (`Acme` / `ACME GmbH`), persons created twice,
+the same email on a contact three times, deals titled ` @ contoso`, or the same
+HR contact linked to a deal twice.
+
+**One-shot fix** — runs every dedupe pass in order:
+
+```bash
+oo crm cleanup -o json
+```
+
+Steps inside `crm cleanup`:
+
+| Step | What it does |
+|------|----------------|
+| `companies` | Merge companies with the same normalized name (slogan variants like `Affirm` / `Affirm — Fraud Engineering` count as one) |
+| `persons` | Merge duplicate persons globally (same first+last) |
+| `company-persons` | Merge duplicate persons under each company |
+| `contact-info` | Remove duplicate email/phone/website rows |
+| `opportunity-members` | Drop duplicate contacts on the same deal |
+| `opportunities` | Merge duplicate deals by title |
+| `fix-titles` | Repair malformed titles (` @ Company` → `Company`) |
+
+**Targeted passes** when you only want one kind of fix:
+
+```bash
+# Duplicate company records
+oo companies dedupe
+
+# Same person entered twice under one employer
+oo companies dedupe-persons
+
+# Global person duplicates (same name, different ids)
+oo persons dedupe
+
+# Repeated email/phone rows on contacts
+oo contacts dedupe-info
+
+# Two deals with the same title
+oo opportunities dedupe
+
+# Same contact attached twice to one deal (common after applications sync)
+oo opportunities dedupe-members
+
+# Titles like " @ contoso" or extra whitespace
+oo opportunities fix-titles
+```
+
+**Deal grouping flag** — when the same role at the same company created
+separate deals (`Engineer @ Acme` vs `Engineer`):
+
+```bash
+oo opportunities dedupe --ignore-company-suffix
+oo crm cleanup --ignore-company-suffix
+```
+
+**Inspect before/after:**
+
+```bash
+oo opportunities list --count 200 | grep -i contoso
+oo contacts get 857 -o json
+oo crm cleanup -o json
+```
+
+### Job applications → CRM (`applications sync`)
+
+**Problem:** You keep CVs in a folder tree (`applications/2026/Acme/README.md`)
+and want companies, persons, deals, and history notes in OnlyOffice without
+re-typing.
+
+**Dry-run first** (default — prints what would happen, writes nothing):
+
+```bash
+oo applications sync --path ./applications/2026 --verbose
+```
+
+**Apply** when the preview looks right:
+
+```bash
+oo applications sync --path ./applications/2026 --apply --verbose
+```
+
+Each dossier `README.md` is parsed for company, role, email, phone, LinkedIn, etc.
+Discovery walks `--path` and **skips** junk trees (`node_modules`, `tools`, `.venv`,
+`pdfs`, …). Only folders that look like CV application slugs (`source-NNN-…`, or
+long hyphenated dossiers) are synced — not npm package READMEs.
+
+The sync creates or finds contacts, opens a deal, adds members, and appends a
+history note. Re-running is safe: duplicate members and duplicate deal titles
+are skipped when already present.
+
+**After a large sync**, run CRM cleanup to collapse duplicates introduced by
+repeated runs or manual edits:
+
+```bash
+oo applications sync --path ./applications/2026 --apply
+oo crm cleanup -o json
+```
+
+### Workspace mail (`oo mails`)
+
+**Problem:** Mail lives in OnlyOffice Mail (`/addons/mail/#inbox`), bound to your
+portal account — not a separate archive service. You want to list, read, or
+remove messages from the shell.
+
+Uses the same `ONLYOFFICE_*` credentials as every other `oo` command.
+
+```bash
+# Which mailbox is linked?
+oo mails accounts
+
+# Folder counters (inbox unread, trash size, …)
+oo mails folders
+
+# Latest inbox messages (API returns 25 per page; --limit paginates automatically)
+oo mails list --folder inbox --limit 50
+
+# Page through older mail
+oo mails list --folder inbox --limit 100 --offset 100
+
+# Other folders
+oo mails list --folder sent --limit 20
+oo mails list --folder spam --limit 100
+
+# Read full message (subject, htmlBody, attachments metadata)
+oo mails get 5664 -o json | jq '{subject, from, to, date}'
+
+# Remove one or more messages (server moves to trash or deletes per Mail rules)
+oo mails delete 5664
+oo mails delete 5664 5663 5661
+```
+
+**Table output** splits the `from` header into `fromName` and `fromAddress`
+(e.g. `Bitfinex` + `no-reply@bitfinex.com`). **JSON output** returns the raw
+API payload.
+
+**Scripting example** — export today's inbox subjects:
+
+```bash
+oo mails list --folder inbox --limit 200 -o json \
+  | jq -r '.[] | "\(.id)\t\(.subject)"'
+```
+
+### Contacts, companies, and deals (everyday CRM)
+
+```bash
+# Search companies
+oo companies list --search acme
+
+# Create company + person with primary email
+oo companies create --name "Acme GmbH" --website https://acme.com
+oo persons create --first Jane --last Doe --email jane@acme.com --company-id 42
+
+# Attach email or LinkedIn to existing contact
+oo contacts info-add 42 --type Email --value jane@acme.com --primary
+
+# Pipeline overview
+oo opportunities list --count 100
+oo opportunities stages
+oo opportunities get 231 -o json
+```
+
+### Calendar and project ops
+
+```bash
+# Next week's events
+oo calendar events --start 2026-06-24 --end 2026-07-01
+
+# Schedule interview block
+oo calendar add "Technical interview" 2026-06-26T10:00:00Z 2026-06-26T11:00:00Z
+
+# Attach CV to a hiring task
+oo tasks files upload 208 ./cv.pdf
+oo projects files list 33
+```
+
+### Suggested maintenance cadence
+
+| When | Command |
+|------|---------|
+| After `applications sync --apply` | `oo crm cleanup` |
+| After bulk CSV import into CRM | `oo crm cleanup` |
+| Weekly inbox triage | `oo mails list --folder inbox --limit 100` |
+| Before exec reporting | `oo opportunities list` + `oo projects list` |
+
+## Environment Variables
+
+| Variable | Description |
+|---|---|
+| `ONLYOFFICE_URL` (or `ONLYOFFICE_HOST`) | OnlyOffice instance URL |
+| `ONLYOFFICE_USER` (or `ONLYOFFICE_NAME`) | Login email or username |
+| `ONLYOFFICE_PASS` (or `ONLYOFFICE_PASSWORD`) | Password |
+| `ONLYOFFICE_CALENDAR_ID` | Default calendar id used when omitted (default `1`) |
+| `ONLYOFFICE_PROJECT_ID` | Default project id used when omitted (default `33`) |
+| `OO_URL`, `OO_USER`, `OO_PASS` | CLI-only produktor.io aliases mapped to `ONLYOFFICE_URL`, `ONLYOFFICE_USER`, `ONLYOFFICE_PASS` |
+
+Mail, CRM cleanup, and applications sync are documented in [oo CLI use cases](#oo-cli-use-cases) above.
+
+### CI / releases
+
+GitHub Actions (pattern from [`eSlider/go-config`](https://github.com/eSlider/go-config)):
+
+| Workflow | Trigger | Purpose |
+|---|---|---|
+| `test.yml` | push / PR | `go vet`, unit tests, build `oo` + `office` |
+| `release-please.yml` | push to `main` | semver PR from conventional commits |
+| `release.yml` | tag `v*` | GoReleaser cross-platform `oo` + `office` binaries |
+
+Repo setting required once: **Settings → Actions → General → Allow GitHub Actions to create and approve pull requests**.
+
+Merge the release-please PR to tag a version; GoReleaser publishes assets to [GitHub Releases](https://github.com/eSlider/go-onlyoffice/releases).
+
+## Examples
+
+| Example | Description |
+|---|---|
+| [basic](examples/basic/) | List projects and users |
+| [calendar](examples/calendar/) | List calendars and events, create a new event |
+| [crm](examples/crm/) | List contacts and opportunities, add company/deal/history note |
+| [subtasks](examples/subtasks/) | Create a parent task and attach subtasks |
+| [`cmd/oo`](cmd/oo/) | Full-featured CLI using all modules |
+| [`cmd/office`](cmd/office/) | Terminal UI — browse Workspace with markdown preview |
+
+## Related Libraries
+
+| Library | Description |
+|---|---|
+| [go-gitea-helpers](https://github.com/eSlider/go-gitea-helpers) | Gitea pagination helpers for issue/repo fetching |
+| [go-matrix-bot](https://github.com/eSlider/go-matrix-bot) | Matrix bot with OnlyOffice task creation from chat |
+| [go-trade](https://github.com/eSlider/go-trade) | Unified trade data model across exchanges |
 
 ## License
 

auth.go

@@ -0,0 +1,121 @@
+package onlyoffice
+
+// Authentication primitives: token lifecycle, eager / context-aware auth, and
+// token invalidation. Split out of http.go so auth concerns live together.
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+// Auth authenticates using the given credentials and returns a fresh token.
+// Most callers should not call this directly — use Authenticate /
+// AuthenticateContext, or let Query fetch a token lazily. Kept exported for
+// backwards compatibility.
+func (c *Client) Auth(creds *Credentials) (*Token, error) {
+	t := &Token{}
+	return t, c.Query(Request{
+		Uri:    "/api/2.0/authentication.json",
+		Method: http.MethodPost,
+		Body:   creds,
+		NoAuth: true,
+	}, &struct {
+		MetaResponse `json:",inline"`
+		Response     *Token `json:"response"`
+	}{
+		Response: t,
+	})
+}
+
+// Authenticate validates credentials and primes the token. Library users may
+// call this eagerly to surface auth errors at startup; otherwise the token
+// is fetched lazily on the first request.
+//
+// Prefer AuthenticateContext in long-running jobs — it honours cancellation.
+func (c *Client) Authenticate() error { return c.ensureToken() }
+
+// AuthenticateContext is the context-aware variant of Authenticate. If the
+// cached token is still valid it returns immediately; otherwise it performs
+// a POST to /api/2.0/authentication.json that is cancellable via ctx.
+//
+// This is the recommended entry point for long-running syncs (cron,
+// watchers) because it guarantees that a stalled auth call will not block
+// the caller past its deadline.
+func (c *Client) AuthenticateContext(ctx context.Context) error {
+	if c.tokenValid() {
+		return nil
+	}
+	body, err := json.Marshal(c.credentials)
+	if err != nil {
+		return fmt.Errorf("marshal credentials: %w", err)
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.baseURL()+"/api/2.0/authentication.json", bytes.NewReader(body))
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept", "application/json")
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return fmt.Errorf("auth request: %w", err)
+	}
+	defer resp.Body.Close()
+	raw, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("auth: %d %s", resp.StatusCode, truncate(string(raw), 400))
+	}
+	var env struct {
+		Response *Token `json:"response"`
+	}
+	if err := json.Unmarshal(raw, &env); err != nil {
+		return fmt.Errorf("auth decode: %w", err)
+	}
+	if env.Response == nil || env.Response.Value == "" {
+		return fmt.Errorf("auth: empty token in response")
+	}
+	c.token = env.Response
+	return nil
+}
+
+// InvalidateToken clears the cached authentication token. The next request
+// (or call to Authenticate / AuthenticateContext) will re-authenticate.
+//
+// Use this to recover from a mid-sync 401 when the server has revoked or
+// rotated the session while the Expires timestamp still looks fresh locally.
+func (c *Client) InvalidateToken() { c.token = nil }
+
+// tokenValid reports whether the cached token is present and not expired.
+func (c *Client) tokenValid() bool {
+	return c.token != nil && !time.Time(c.token.Expires).Before(time.Now())
+}
+
+// ensureToken refreshes the authentication token when missing or expired.
+// Mirrors the logic inline in Query() but is safe to call from helpers that
+// bypass the typed Request abstraction.
+func (c *Client) ensureToken() error {
+	if c.tokenValid() {
+		return nil
+	}
+	tok, err := c.Auth(c.credentials)
+	if err != nil {
+		return err
+	}
+	c.token = tok
+	return nil
+}
+
+// authHeader returns the value for the Authorization header, ensuring a token.
+func (c *Client) authHeader() (string, error) {
+	if err := c.ensureToken(); err != nil {
+		return "", err
+	}
+	return c.token.Value, nil
+}

calendar.go

@@ -0,0 +1,72 @@
+package onlyoffice
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"strconv"
+)
+
+// ListCalendars returns calendars/events for the given date span (YYYY-MM-DD).
+// Empty start/end fall back to a wide default window (2020-01-01..2030-12-31),
+// matching the Python reference implementation.
+func (c *Client) ListCalendars(ctx context.Context, start, end string) ([]map[string]any, error) {
+	if start == "" {
+		start = "2020-01-01"
+	}
+	if end == "" {
+		end = "2030-12-31"
+	}
+	path := fmt.Sprintf("/api/2.0/calendar/calendars/%s/%s.json", url.PathEscape(start), url.PathEscape(end))
+	return c.ResponseArray(ctx, path)
+}
+
+// ListEvents is an alias for ListCalendars; retained for the Python-port CLI.
+func (c *Client) ListEvents(ctx context.Context, start, end string) ([]map[string]any, error) {
+	return c.ListCalendars(ctx, start, end)
+}
+
+// AddEvent creates a simple one-shot calendar event. When calendarID is empty
+// the configured default (SetDefaults or GetEnvironmentDefaults) is used.
+// Start/end timestamps are forwarded verbatim (OnlyOffice accepts ISO 8601).
+//
+// The underlying API returns an array wrapper — this helper unwraps the first
+// element for convenience.
+func (c *Client) AddEvent(ctx context.Context, calendarID, title, start, end, description string, allDay bool) (map[string]any, error) {
+	if calendarID == "" {
+		calendarID = c.defaults.CalendarID
+	}
+	if calendarID == "" {
+		return nil, fmt.Errorf("AddEvent: calendarID is required (pass explicitly or set via SetDefaults)")
+	}
+	fields := url.Values{}
+	fields.Set("name", title)
+	fields.Set("description", description)
+	fields.Set("startDate", start)
+	fields.Set("endDate", end)
+	fields.Set("repeatType", "")
+	fields.Set("alertType", "0")
+	fields.Set("isAllDayLong", strconv.FormatBool(allDay))
+	raw, err := c.postForm(ctx, fmt.Sprintf("/api/2.0/calendar/%s/event.json", url.PathEscape(calendarID)), fields)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := responseField(raw, "response")
+	if err != nil {
+		return nil, err
+	}
+	var arr []map[string]any
+	if err := json.Unmarshal(resp, &arr); err != nil {
+		return nil, err
+	}
+	if len(arr) == 0 {
+		return nil, fmt.Errorf("AddEvent: empty response")
+	}
+	return arr[0], nil
+}
+
+// DeleteEvent removes a single calendar event by its event ID.
+func (c *Client) DeleteEvent(ctx context.Context, eventID string) (map[string]any, error) {
+	return c.deleteObject(ctx, fmt.Sprintf("/api/2.0/calendar/events/%s.json", url.PathEscape(eventID)))
+}

client.go

@@ -0,0 +1,108 @@
+// Package onlyoffice provides a Go client for the OnlyOffice Workspace
+// (formerly ONLYOFFICE) REST API. It is organised as a flat single package
+// intentionally: a single *Client exposes Projects, Tasks, Calendar, CRM and
+// Files operations as receiver methods. Domain split is by file, not by
+// subpackage, to keep call sites uniform (c.ListContacts, c.GetTasks,
+// c.AddEvent, c.UploadOpportunityFile all live on the same handle).
+//
+// The CLI binary `oo` (see cmd/oo) is a thin cobra wrapper on top of this
+// library and mirrors the Python cv/bin/office reference tooling.
+package onlyoffice
+
+import (
+	"net/http"
+	"os"
+	"strings"
+)
+
+// Client of OnlyOffice API uses credentials to get a token and query the API
+// by every request.
+//
+// Construct with NewClient; optionally set fallbacks via SetDefaults. The
+// zero value is NOT usable — credentials are required. A single client is
+// safe for sequential use from one goroutine; for concurrent use, callers
+// should wrap with their own synchronization or create one client per
+// goroutine.
+type Client struct {
+	client      *http.Client
+	credentials *Credentials
+	token       *Token
+
+	defaults  Defaults // optional fallbacks for calendar/project IDs
+	selfID    string   // cached /api/2.0/people/@self id
+	noteCatID int      // cached CRM history category id for "note"
+}
+
+// NewClient returns a new Client backed by http.DefaultClient.
+func NewClient(c Credentials) *Client {
+	return &Client{
+		client:      http.DefaultClient,
+		credentials: &c,
+	}
+}
+
+// Credentials of OnlyOffice User. The Url field is NOT sent with the auth
+// payload — it only determines the host.
+type Credentials struct {
+	Url      string `json:"-"`
+	User     string `json:"userName"`
+	Password string `json:"password"`
+}
+
+// Defaults holds optional fallbacks used by package-level helpers when callers
+// pass an empty identifier (calendar or project). Set via (*Client).SetDefaults
+// or read from env via GetEnvironmentDefaults.
+type Defaults struct {
+	CalendarID string
+	ProjectID  string
+}
+
+// SetDefaults configures optional identifiers used as fallbacks by methods
+// such as AddEvent (when calendarID == "") or AddTask (when projectID == "").
+func (c *Client) SetDefaults(d Defaults) { c.defaults = d }
+
+// GetEnvironmentCredentials reads OnlyOffice credentials from environment.
+//
+// Primary variables (documented):
+//   - ONLYOFFICE_URL
+//   - ONLYOFFICE_USER
+//   - ONLYOFFICE_PASS
+//
+// Additional aliases accepted for interoperability with sibling tools:
+//   - ONLYOFFICE_HOST        (alias for ONLYOFFICE_URL)
+//   - ONLYOFFICE_NAME        (alias for ONLYOFFICE_USER)
+//   - ONLYOFFICE_PASSWORD    (alias for ONLYOFFICE_PASS)
+func GetEnvironmentCredentials() Credentials {
+	url := firstNonEmpty(os.Getenv("ONLYOFFICE_URL"), os.Getenv("ONLYOFFICE_HOST"))
+	url = strings.TrimRight(url, "/")
+	return Credentials{
+		Url:      url,
+		User:     firstNonEmpty(os.Getenv("ONLYOFFICE_USER"), os.Getenv("ONLYOFFICE_NAME")),
+		Password: firstNonEmpty(os.Getenv("ONLYOFFICE_PASS"), os.Getenv("ONLYOFFICE_PASSWORD")),
+	}
+}
+
+// GetEnvironmentDefaults reads optional library defaults from environment:
+//
+//   - ONLYOFFICE_CALENDAR_ID (default: "1")
+//   - ONLYOFFICE_PROJECT_ID  (alias: ONLYOFFICE_CALENDAR_PROJECT_ID; default: "33")
+func GetEnvironmentDefaults() Defaults {
+	return Defaults{
+		CalendarID: firstNonEmpty(os.Getenv("ONLYOFFICE_CALENDAR_ID"), "1"),
+		ProjectID: firstNonEmpty(
+			os.Getenv("ONLYOFFICE_PROJECT_ID"),
+			os.Getenv("ONLYOFFICE_CALENDAR_PROJECT_ID"),
+			"33",
+		),
+	}
+}
+
+// firstNonEmpty returns the first non-empty trimmed value, or "" if none.
+func firstNonEmpty(vals ...string) string {
+	for _, v := range vals {
+		if s := strings.TrimSpace(v); s != "" {
+			return s
+		}
+	}
+	return ""
+}

client_test.go

@@ -1,128 +1,220 @@
+//go:build integration
+
 package onlyoffice
 
+// Integration tests — hit a live OnlyOffice Workspace instance. Credentials
+// come from ONLYOFFICE_URL / ONLYOFFICE_USER / ONLYOFFICE_PASS (aliases
+// _HOST / _NAME / _PASSWORD also accepted). Without credentials every test
+// here skips.
+//
+// Run with:
+//
+//	go test -tags=integration ./...
+//
+// These tests are destructive on the target instance. They create projects
+// with titles prefixed "go-onlyoffice-test-" and clean up afterwards. Do not
+// run against an instance you don't own.
+
 import (
-	"os"
+	"context"
+	"strconv"
 	"strings"
 	"testing"
 	"time"
-
-	"github.com/joho/godotenv"
 )
 
-// Load environment variables
-func init() {
-	// Load from .env file in the project root
-	_ = godotenv.Load(".env")
-}
-
-func skipWithoutCredentials(t *testing.T) {
+func skipWithoutCredentials(t *testing.T) Credentials {
 	t.Helper()
-	if os.Getenv("ONLYOFFICE_URL") == "" {
-		t.Skip("ONLYOFFICE_URL is not set, skipping integration test")
+	c := GetEnvironmentCredentials()
+	if c.Url == "" || c.User == "" || c.Password == "" {
+		t.Skip("ONLYOFFICE_URL/USER/PASS not set — skipping integration test")
+	}
+	return c
+}
+
+func liveClient(t *testing.T) *Client {
+	t.Helper()
+	c := NewClient(skipWithoutCredentials(t))
+	c.SetDefaults(GetEnvironmentDefaults())
+	return c
+}
+
+const testProjectPrefix = "go-onlyoffice-test-"
+
+func cleanupTestProjects(t *testing.T, c *Client) {
+	t.Helper()
+	projects, err := c.GetProjects()
+	if err != nil {
+		t.Logf("cleanup: GetProjects: %v", err)
+		return
+	}
+	for _, p := range projects {
+		if p.Title != nil && strings.HasPrefix(*p.Title, testProjectPrefix) {
+			if _, err := c.DeleteProject(*p.ID); err != nil {
+				t.Logf("cleanup: DeleteProject %d: %v", *p.ID, err)
+			}
+		}
 	}
 }
 
-func TestNewClient(t *testing.T) {
-	skipWithoutCredentials(t)
-
-	// Create a new OnlyOffice client
-	credentials := GetEnvironmentCredentials()
-	client := NewClient(credentials)
-	var token *Token
-	var err error
-	token, err = client.Auth(&credentials)
+func TestIntegrationAuthenticateContext(t *testing.T) {
+	c := liveClient(t)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := c.AuthenticateContext(ctx); err != nil {
+		t.Fatalf("AuthenticateContext: %v", err)
+	}
+	if c.token == nil || c.token.Value == "" {
+		t.Fatal("token not cached after AuthenticateContext")
+	}
+	// Second call must hit the cache.
+	cachedValue := c.token.Value
+	if err := c.AuthenticateContext(ctx); err != nil {
+		t.Fatalf("AuthenticateContext (cached): %v", err)
+	}
+	if c.token.Value != cachedValue {
+		t.Fatal("cached token was replaced unexpectedly")
+	}
+	// Invalidate forces re-auth.
+	c.InvalidateToken()
+	if c.token != nil {
+		t.Fatal("InvalidateToken did not clear the cache")
+	}
+	if err := c.AuthenticateContext(ctx); err != nil {
+		t.Fatalf("AuthenticateContext (after invalidate): %v", err)
+	}
+	if c.token == nil {
+		t.Fatal("post-invalidate auth left token nil")
+	}
+}
 
+func TestIntegrationGetProjectsAndSelf(t *testing.T) {
+	c := liveClient(t)
+	projects, err := c.GetProjects()
 	if err != nil {
-		t.Errorf("Failed to get token: %v", err)
+		t.Fatalf("GetProjects: %v", err)
 	}
-	if token == nil {
-		t.Error("Value is empty")
+	if projects == nil {
+		t.Fatal("nil slice from GetProjects")
 	}
-
-	// Clean up: remove all projects start with "Test project"
-	projects, err := client.GetProjects()
+	ctx := context.Background()
+	uid, err := c.SelfUserID(ctx)
 	if err != nil {
-		t.Errorf("Failed to get projects: %v", err)
+		t.Fatalf("SelfUserID: %v", err)
 	}
+	if uid == "" {
+		t.Fatal("empty self user id")
+	}
+}
 
-	for _, project := range projects {
-		if strings.HasPrefix(*project.Title, "Test project") {
-			prjStatus, err := client.DeleteProject(*project.ID)
-			if err != nil {
-				t.Errorf("Failed to delete project: %v", err)
-			}
-			if *prjStatus.ID != *project.ID {
-				t.Errorf("Project ID is not equal: %v != %v", prjStatus.ID, project.ID)
-			}
-		}
-	}
+func TestIntegrationProjectAndTaskLifecycle(t *testing.T) {
+	c := liveClient(t)
+	t.Cleanup(func() { cleanupTestProjects(t, c) })
 
-	// Test create project
-	project, err := client.CreateProject(NewProjectRequest{
-		Title:       "Test project",
-		Description: "Test project description",
+	suffix := time.Now().UTC().Format("20060102-150405")
+	title := testProjectPrefix + suffix
+	project, err := c.CreateProject(NewProjectRequest{
+		Title:       title,
+		Description: "integration test from go-onlyoffice",
 	})
-
 	if err != nil {
-		t.Errorf("Failed to create project: %v", err)
+		t.Fatalf("CreateProject: %v", err)
+	}
+	if project.ID == nil {
+		t.Fatal("created project without id")
 	}
 
-	// Update project
-	project, err = client.UpdateProject(ProjectUpdateRequest{
+	updated, err := c.UpdateProject(ProjectUpdateRequest{
 		ID:            *project.ID,
-		Title:         "Test project updated",
+		Title:         title + " (updated)",
+		Description:   "updated",
 		ResponsibleID: *project.Responsible.ID,
 	})
+	if err != nil {
+		t.Fatalf("UpdateProject: %v", err)
+	}
+	if updated.Title == nil || *updated.Title != title+" (updated)" {
+		t.Errorf("title not updated: %+v", updated.Title)
+	}
 
-	var task *Task
-	// Test create project task
-	task, err = client.CreateProjectTask(NewProjectTaskRequest{
+	start := Time(time.Now().AddDate(0, 0, -2))
+	deadline := Time(time.Now().AddDate(0, 0, 2))
+	task, err := c.CreateProjectTask(NewProjectTaskRequest{
 		ProjectId:   *project.ID,
-		Title:       "Test task",
-		Description: "Test task description",
-		Notify:      true,
-		MilestoneId: 0,
-		Priority:    0,
-		// Deadline +2 days
-		StartDate: Time(time.Now().AddDate(0, 0, -2)),
-		Deadline:  Time(time.Now().AddDate(0, 0, 2)),
+		Title:       "integration parent task",
+		Description: "from go-onlyoffice integration suite",
+		StartDate:   start,
+		Deadline:    deadline,
+		Priority:    int(TaskPriorityNormal),
 	})
+	if err != nil {
+		t.Fatalf("CreateProjectTask: %v", err)
+	}
+	if task.ID == nil {
+		t.Fatal("created task without id")
+	}
 
-	// Update project task
-	startDate := Time(time.Now().AddDate(0, 0, -14))
-	deadline := Time(time.Now().AddDate(0, 0, 3))
-	task, err = client.UpdateProjectTask(ProjectTaskUpdateRequest{
+	newStart := Time(time.Now().AddDate(0, 0, -14))
+	newDeadline := Time(time.Now().AddDate(0, 0, 3))
+	if _, err := c.UpdateProjectTask(ProjectTaskUpdateRequest{
 		ID:          *task.ID,
-		Title:       "Test task updated",
-		Description: "Test task description updated",
-		StartDate:   &startDate,
-		Deadline:    &deadline,
-	})
+		Title:       "integration parent task (updated)",
+		Description: "updated",
+		StartDate:   &newStart,
+		Deadline:    &newDeadline,
+	}); err != nil {
+		t.Fatalf("UpdateProjectTask: %v", err)
+	}
 
+	// Subtask uses the form-encoded helper; exercises httpx.postForm path.
+	ctx := context.Background()
+	sub, err := c.AddSubtask(ctx, strconv.Itoa(*task.ID), "integration subtask")
 	if err != nil {
-		t.Errorf("Failed to create task: %v", err)
+		t.Fatalf("AddSubtask: %v", err)
 	}
+	if _, ok := sub["id"]; !ok {
+		t.Errorf("subtask response missing id: %+v", sub)
+	}
+}
+
+func TestIntegrationCalendarAndCRMRead(t *testing.T) {
+	c := liveClient(t)
+	ctx := context.Background()
+	start := time.Now().Format("2006-01-02")
+	end := time.Now().AddDate(0, 0, 14).Format("2006-01-02")
 
-	if task == nil {
-		t.Error("Value is empty")
+	if _, err := c.ListCalendars(ctx, start, end); err != nil {
+		t.Errorf("ListCalendars: %v", err)
+	}
+	if _, err := c.ListEvents(ctx, start, end); err != nil {
+		t.Errorf("ListEvents: %v", err)
+	}
+	if _, _, err := c.ListContacts(ctx, 5, 0, ""); err != nil {
+		t.Errorf("ListContacts: %v", err)
 	}
-
-	// Delete project
-	prj, err := client.DeleteProject(*project.ID)
-	if err != nil {
-		t.Errorf("Failed to delete project: %v", err)
+	if _, _, err := c.ListOpportunities(ctx, 5, 0); err != nil {
+		t.Errorf("ListOpportunities: %v", err)
+	}
+	if _, err := c.ListDealStages(ctx); err != nil {
+		t.Errorf("ListDealStages: %v", err)
 	}
+}
 
-	if *prj.ID != *project.ID {
-		t.Errorf("Project ID is not equal: %v != %v", prj.ID, project.ID)
+// TestIntegrationDryRunList covers the tiniest project-tasks read that
+// inventar-sync depends on; confirms GetTasks deserialises real responses.
+func TestIntegrationListTasks(t *testing.T) {
+	c := liveClient(t)
+	defaults := GetEnvironmentDefaults()
+	// ProjectID default is "33"; skip the read-only list if the caller hasn't
+	// pointed us at a valid project (we don't know which projects exist).
+	if defaults.ProjectID == "" {
+		t.Skip("ONLYOFFICE_PROJECT_ID not configured")
 	}
-
-	// Test list projects
-	projects, err = client.GetProjects()
-	if err != nil {
-		t.Errorf("Failed to get projects: %v", err)
+	pid, err := strconv.Atoi(defaults.ProjectID)
+	if err != nil || pid <= 0 {
+		t.Skipf("ONLYOFFICE_PROJECT_ID %q is not a positive int", defaults.ProjectID)
 	}
-	if len(projects) == 0 {
-		t.Error("Value is empty")
+	if _, err := c.GetTasks(NewProjectGetTasksRequest(pid)); err != nil {
+		t.Fatalf("GetTasks(%d): %v", pid, err)
 	}
 }

cmd/internal/bootstrap/bootstrap.go

@@ -0,0 +1,50 @@
+// Package bootstrap loads CLI environment and constructs an authenticated
+// OnlyOffice client. Shared by cmd/oo and cmd/office; the library never
+// loads dotfiles.
+package bootstrap
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"strings"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/joho/godotenv"
+)
+
+// LoadEnv reads .env from the current working directory and applies OO_* aliases.
+func LoadEnv() {
+	_ = godotenv.Load(".env")
+	applyEnvAliases()
+}
+
+// NewClient loads env, validates credentials, and authenticates against OnlyOffice.
+func NewClient(ctx context.Context) (*onlyoffice.Client, error) {
+	LoadEnv()
+	creds := onlyoffice.GetEnvironmentCredentials()
+	if creds.Url == "" || creds.User == "" || creds.Password == "" {
+		return nil, fmt.Errorf("need ONLYOFFICE_URL (or ONLYOFFICE_HOST/OO_URL), user (ONLYOFFICE_USER or ONLYOFFICE_NAME/OO_USER), password (ONLYOFFICE_PASS or ONLYOFFICE_PASSWORD/OO_PASS)")
+	}
+	c := onlyoffice.NewClient(creds)
+	c.SetDefaults(onlyoffice.GetEnvironmentDefaults())
+	if err := c.AuthenticateContext(ctx); err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
+func applyEnvAliases() {
+	setEnvIfEmpty("ONLYOFFICE_URL", "OO_URL")
+	setEnvIfEmpty("ONLYOFFICE_USER", "OO_USER")
+	setEnvIfEmpty("ONLYOFFICE_PASS", "OO_PASS")
+}
+
+func setEnvIfEmpty(dst, src string) {
+	if strings.TrimSpace(os.Getenv(dst)) != "" {
+		return
+	}
+	if v := strings.TrimSpace(os.Getenv(src)); v != "" {
+		_ = os.Setenv(dst, v)
+	}
+}

cmd/internal/bootstrap/bootstrap_test.go

@@ -0,0 +1,95 @@
+package bootstrap_test
+
+import (
+	"context"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/internal/bootstrap"
+)
+
+func TestLoadEnvFromCWDWithOOAliases(t *testing.T) {
+	clearEnv(t, "ONLYOFFICE_URL", "ONLYOFFICE_USER", "ONLYOFFICE_PASS", "OO_URL", "OO_USER", "OO_PASS")
+	dir := t.TempDir()
+	oldwd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Chdir(dir); err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = os.Chdir(oldwd) })
+
+	if err := os.WriteFile(".env", []byte("OO_URL=https://office.example.com\nOO_USER=user@example.com\nOO_PASS=secret\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	bootstrap.LoadEnv()
+	if got := os.Getenv("ONLYOFFICE_URL"); got != "https://office.example.com" {
+		t.Fatalf("ONLYOFFICE_URL=%q", got)
+	}
+	if got := os.Getenv("ONLYOFFICE_USER"); got != "user@example.com" {
+		t.Fatalf("ONLYOFFICE_USER=%q", got)
+	}
+	if got := os.Getenv("ONLYOFFICE_PASS"); got != "secret" {
+		t.Fatalf("ONLYOFFICE_PASS=%q", got)
+	}
+}
+
+func TestLoadEnvDoesNotOverrideCanonicalWithAlias(t *testing.T) {
+	clearEnv(t, "ONLYOFFICE_URL", "OO_URL")
+	t.Setenv("ONLYOFFICE_URL", "https://canonical.example")
+	t.Setenv("OO_URL", "https://alias.example")
+
+	bootstrap.LoadEnv()
+
+	if got := os.Getenv("ONLYOFFICE_URL"); got != "https://canonical.example" {
+		t.Fatalf("ONLYOFFICE_URL=%q", got)
+	}
+}
+
+func TestNewClientReturnsErrorWithoutCredentials(t *testing.T) {
+	clearEnv(t,
+		"ONLYOFFICE_URL", "ONLYOFFICE_HOST", "ONLYOFFICE_USER", "ONLYOFFICE_NAME",
+		"ONLYOFFICE_PASS", "ONLYOFFICE_PASSWORD",
+		"OO_URL", "OO_USER", "OO_PASS",
+	)
+	dir := t.TempDir()
+	oldwd, err := os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Chdir(dir); err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = os.Chdir(oldwd) })
+
+	_, err = bootstrap.NewClient(context.Background())
+	if err == nil {
+		t.Fatal("expected error without credentials")
+	}
+	msg := err.Error()
+	for _, want := range []string{"ONLYOFFICE_URL", "ONLYOFFICE_USER", "ONLYOFFICE_PASS"} {
+		if !strings.Contains(msg, want) {
+			t.Fatalf("error %q missing %q", msg, want)
+		}
+	}
+}
+
+func clearEnv(t *testing.T, keys ...string) {
+	t.Helper()
+	for _, key := range keys {
+		old, ok := os.LookupEnv(key)
+		if err := os.Unsetenv(key); err != nil {
+			t.Fatal(err)
+		}
+		t.Cleanup(func() {
+			if ok {
+				_ = os.Setenv(key, old)
+				return
+			}
+			_ = os.Unsetenv(key)
+		})
+	}
+}

cmd/office/fetch/calendar.go

@@ -0,0 +1,53 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// CalendarItemFields maps calendar API rows to list items.
+var CalendarItemFields = FieldMap{IDKey: "objectId", TitleKey: "title"}
+
+// CalendarItemsFromRows converts API calendar/event rows into list items.
+func CalendarItemsFromRows(rows []map[string]any) []model.Item {
+	out := make([]model.Item, 0, len(rows))
+	for _, row := range rows {
+		kind, typeLabel := model.ClassifyCalendarRow(row)
+		title := str(row, "title")
+		if title == "" {
+			title = str(row, "name")
+		}
+		if title == "" {
+			title = "(untitled)"
+		}
+		raw := make(map[string]any, len(row)+1)
+		for k, v := range row {
+			raw[k] = v
+		}
+		raw["type"] = typeLabel
+		out = append(out, model.Item{
+			ID:    idStr(row, "objectId"),
+			Title: title,
+			Kind:  kind,
+			Raw:   raw,
+		})
+	}
+	return out
+}
+
+// ListCalendar returns calendars and events for the upcoming date window.
+func (l *Loader) ListCalendar(ctx context.Context) ([]model.Item, error) {
+	if l == nil || l.Client == nil {
+		return nil, fmt.Errorf("fetch: client is nil")
+	}
+	start := time.Now().AddDate(0, 0, -7).Format("2006-01-02")
+	end := time.Now().AddDate(0, 0, 30).Format("2006-01-02")
+	rows, err := l.Client.ListCalendars(ctx, start, end)
+	if err != nil {
+		return nil, err
+	}
+	return CalendarItemsFromRows(rows), nil
+}

cmd/office/fetch/fetch_integration_test.go

@@ -0,0 +1,107 @@
+package fetch_test
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/internal/bootstrap"
+	"github.com/eslider/go-onlyoffice/cmd/office/fetch"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func skipWithoutLiveAPI(t *testing.T) {
+	t.Helper()
+	if os.Getenv("ONLYOFFICE_URL") == "" && os.Getenv("ONLYOFFICE_HOST") == "" {
+		t.Skip("ONLYOFFICE_URL not set")
+	}
+	if os.Getenv("ONLYOFFICE_USER") == "" && os.Getenv("ONLYOFFICE_NAME") == "" {
+		t.Skip("ONLYOFFICE_USER not set")
+	}
+	if os.Getenv("ONLYOFFICE_PASS") == "" && os.Getenv("ONLYOFFICE_PASSWORD") == "" {
+		t.Skip("ONLYOFFICE_PASS not set")
+	}
+}
+
+func liveLoader(t *testing.T) (*fetch.Loader, context.Context) {
+	t.Helper()
+	skipWithoutLiveAPI(t)
+	client, err := bootstrap.NewClient(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &fetch.Loader{Client: client}, context.Background()
+}
+
+func TestIntegrationListAllSubjects(t *testing.T) {
+	loader, ctx := liveLoader(t)
+
+	cases := []model.ListSpec{
+		{Subject: model.SubjectProjects},
+		{Subject: model.SubjectTasks},
+		{Subject: model.SubjectCalendar},
+		{Subject: model.SubjectContacts},
+		{Subject: model.SubjectPersons},
+		{Subject: model.SubjectCompanies},
+		{Subject: model.SubjectOpportunities},
+		{Subject: model.SubjectCases},
+		{Subject: model.SubjectCRMTasks},
+		{Subject: model.SubjectMailInbox},
+		{Subject: model.SubjectUsers},
+	}
+
+	for _, spec := range cases {
+		t.Run(string(spec.Subject), func(t *testing.T) {
+			items, err := loader.List(ctx, spec)
+			if err != nil {
+				t.Fatalf("List(%s): %v", spec.Subject, err)
+			}
+			t.Logf("%s: %d items", spec.Subject, len(items))
+			for i, it := range items {
+				if it.ID == "" {
+					t.Errorf("item[%d] missing ID", i)
+				}
+				if it.Title == "" {
+					t.Errorf("item[%d] missing Title", i)
+				}
+			}
+		})
+	}
+}
+
+func TestIntegrationListProjectsMapsRealFields(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	spec := model.ListSpec{Subject: model.SubjectProjects}
+	items, err := loader.List(ctx, spec)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no projects on instance")
+	}
+	detail, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatalf("Detail: %v", err)
+	}
+	if detail == nil {
+		t.Fatal("nil detail")
+	}
+}
+
+func TestIntegrationMailInboxDetail(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectMailInbox})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("inbox empty")
+	}
+	detail, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatalf("GetMailMessage: %v", err)
+	}
+	if detail["subject"] == nil {
+		t.Fatalf("message missing subject: %+v", detail)
+	}
+}

cmd/office/fetch/list.go

@@ -0,0 +1,387 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// MailListPageSize is how many messages each infinite-scroll fetch loads.
+const MailListPageSize = 25
+
+// Loader fetches list items for a menu subject using the OnlyOffice client.
+type Loader struct {
+	Client *onlyoffice.Client
+}
+
+// List returns items for the given list spec (nav leaf).
+func (l *Loader) List(ctx context.Context, spec model.ListSpec) ([]model.Item, error) {
+	if l == nil || l.Client == nil {
+		return nil, fmt.Errorf("fetch: client is nil")
+	}
+	switch spec.Subject {
+	case model.SubjectProjects:
+		return l.listProjects(ctx)
+	case model.SubjectTasks:
+		if spec.ProjectID != "" {
+			return l.listTasksForProject(ctx, spec.ProjectID)
+		}
+		return l.listTasks(ctx)
+	case model.SubjectCalendar:
+		return l.ListCalendar(ctx)
+	case model.SubjectCalendars:
+		return l.ListCalendar(ctx)
+	case model.SubjectEvents:
+		return l.ListCalendar(ctx)
+	case model.SubjectContacts:
+		return l.listContacts(ctx, nil)
+	case model.SubjectPersons:
+		falseVal := false
+		return l.listContacts(ctx, &falseVal)
+	case model.SubjectCompanies:
+		trueVal := true
+		return l.listContacts(ctx, &trueVal)
+	case model.SubjectOpportunities:
+		return l.listOpportunities(ctx)
+	case model.SubjectCases:
+		return l.listCases(ctx)
+	case model.SubjectCRMTasks:
+		return l.listCRMTasks(ctx)
+	case model.SubjectMailInbox:
+		return l.listMail(ctx, onlyoffice.MailFolderInbox, 0)
+	case model.SubjectMailSent:
+		return l.listMail(ctx, onlyoffice.MailFolderSent, 0)
+	case model.SubjectMailDrafts:
+		return l.listMail(ctx, onlyoffice.MailFolderDrafts, 0)
+	case model.SubjectMailTrash:
+		return l.listMail(ctx, onlyoffice.MailFolderTrash, 0)
+	case model.SubjectMailSpam:
+		return l.listMail(ctx, onlyoffice.MailFolderSpam, 0)
+	case model.SubjectUsers:
+		return l.listUsers(ctx)
+	case model.SubjectProjectFiles:
+		pid := spec.ProjectID
+		if pid == "" {
+			pid = onlyoffice.GetEnvironmentDefaults().ProjectID
+		}
+		if pid == "" {
+			return nil, fmt.Errorf("set ONLYOFFICE_PROJECT_ID or pick a project in the tree")
+		}
+		return l.listProjectFiles(ctx, pid)
+	case model.SubjectTaskFiles:
+		if spec.TaskID == "" {
+			return nil, fmt.Errorf("pick a task under Projects in the tree")
+		}
+		return l.listTaskFiles(ctx, spec.TaskID)
+	default:
+		return nil, fmt.Errorf("unsupported subject %q", spec.Subject)
+	}
+}
+
+// LoadProjectsForNav returns projects to inject as dynamic tree nodes.
+func (l *Loader) LoadProjectsForNav(ctx context.Context) ([]model.Item, error) {
+	return l.listProjects(ctx)
+}
+
+// Detail fetches full record data for preview when list row is insufficient.
+func (l *Loader) Detail(ctx context.Context, item model.Item) (map[string]any, error) {
+	switch item.Kind {
+	case model.KindOpportunity:
+		return l.Client.GetOpportunity(ctx, item.ID)
+	case model.KindContact:
+		return l.Client.GetContact(ctx, item.ID)
+	case model.KindMail:
+		return l.Client.GetMailMessage(ctx, item.ID)
+	case model.KindTask, model.KindCRMTask:
+		return l.Client.GetTaskByID(ctx, item.ID)
+	case model.KindProject:
+		return l.Client.GetProjectByID(ctx, item.ID)
+	case model.KindUser:
+		return l.Client.GetUser(ctx, item.ID)
+	default:
+		if item.Raw != nil {
+			return item.Raw, nil
+		}
+		return map[string]any{"id": item.ID, "title": item.Title}, nil
+	}
+}
+
+// Execute runs a user-selected action on an item.
+func (l *Loader) Execute(ctx context.Context, action model.ActionID, item model.Item, destPath string) (string, error) {
+	switch action {
+	case model.ActionView:
+		return "view", nil
+	case model.ActionDelete:
+		return l.executeDelete(ctx, item)
+	case model.ActionDownload:
+		return l.executeDownload(ctx, item, destPath)
+	default:
+		return "", fmt.Errorf("unsupported action %q", action)
+	}
+}
+
+func (l *Loader) executeDelete(ctx context.Context, item model.Item) (string, error) {
+	switch item.Kind {
+	case model.KindProject:
+		id, err := strconv.Atoi(item.ID)
+		if err != nil {
+			return "", err
+		}
+		if _, err := l.Client.DeleteProject(id); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted project %s", item.Title), nil
+	case model.KindTask:
+		if _, err := l.Client.DeleteTask(ctx, item.ID); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted task %s", item.Title), nil
+	case model.KindContact:
+		if _, err := l.Client.DeleteContact(ctx, item.ID); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted contact %s", item.Title), nil
+	case model.KindOpportunity:
+		if _, err := l.Client.DeleteOpportunity(ctx, item.ID); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted deal %s", item.Title), nil
+	case model.KindCase:
+		if _, err := l.Client.DeleteCase(ctx, item.ID); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted case %s", item.Title), nil
+	case model.KindCRMTask:
+		if _, err := l.Client.DeleteCRMTask(ctx, item.ID); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted CRM task %s", item.Title), nil
+	case model.KindMail:
+		id, err := strconv.Atoi(item.ID)
+		if err != nil {
+			return "", err
+		}
+		if _, err := l.Client.RemoveMailMessages(ctx, id); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted message %s", item.Title), nil
+	case model.KindFile:
+		id, err := strconv.Atoi(item.ID)
+		if err != nil {
+			return "", err
+		}
+		if err := l.Client.DeleteFiles(ctx, []int{id}); err != nil {
+			return "", err
+		}
+		return fmt.Sprintf("Deleted file %s", item.Title), nil
+	default:
+		return "", fmt.Errorf("delete not supported for %s", item.Kind)
+	}
+}
+
+func (l *Loader) executeDownload(ctx context.Context, item model.Item, destPath string) (string, error) {
+	if item.Kind != model.KindFile {
+		return "", fmt.Errorf("download only for files")
+	}
+	if destPath == "" {
+		destPath = filepath.Join(os.TempDir(), "office", item.Title)
+	}
+	if err := os.MkdirAll(filepath.Dir(destPath), 0o755); err != nil {
+		return "", err
+	}
+	f, err := os.Create(destPath)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+	if _, err := l.Client.DownloadFile(ctx, item.ID, f); err != nil {
+		return "", err
+	}
+	return fmt.Sprintf("Downloaded to %s", destPath), nil
+}
+
+func (l *Loader) listTasksForProject(ctx context.Context, projectID string) ([]model.Item, error) {
+	rows, err := l.Client.ListTasks(ctx, projectID, "")
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(rows, model.KindTask, TaskItemFields), nil
+}
+
+func (l *Loader) listTaskFiles(ctx context.Context, taskID string) ([]model.Item, error) {
+	files, err := l.Client.GetTaskFiles(ctx, taskID)
+	if err != nil {
+		return nil, err
+	}
+	var items []model.Item
+	for _, f := range files {
+		id, title := "", ""
+		if f.ID != nil {
+			id = f.ID.String()
+		}
+		if f.Title != nil {
+			title = *f.Title
+		}
+		items = append(items, model.Item{
+			ID: id, Title: title, Kind: model.KindFile,
+			Raw: map[string]any{"id": id, "title": title},
+		})
+	}
+	return items, nil
+}
+
+func (l *Loader) listProjects(ctx context.Context) ([]model.Item, error) {
+	projects, err := l.Client.GetProjects()
+	if err != nil {
+		return nil, err
+	}
+	items := make([]model.Item, len(projects))
+	for i, p := range projects {
+		id := ""
+		if p.ID != nil {
+			id = fmt.Sprint(*p.ID)
+		}
+		title := ""
+		if p.Title != nil {
+			title = *p.Title
+		}
+		raw := map[string]any{
+			"id":    id,
+			"title": title,
+		}
+		if p.TaskCount != nil {
+			raw["taskCount"] = *p.TaskCount
+		}
+		if p.TaskCountTotal != nil {
+			raw["taskCountTotal"] = *p.TaskCountTotal
+		}
+		if p.DocumentsCount != nil {
+			raw["documentsCount"] = *p.DocumentsCount
+		}
+		if p.ParticipantCount != nil {
+			raw["participantCount"] = *p.ParticipantCount
+		}
+		if p.Status != nil {
+			raw["status"] = *p.Status
+		}
+		items[i] = model.Item{
+			ID: id, Title: title, Kind: model.KindProject, Raw: raw,
+		}
+	}
+	return items, nil
+}
+
+func (l *Loader) listTasks(ctx context.Context) ([]model.Item, error) {
+	rows, err := l.Client.ListAllTasks(ctx, "")
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(rows, model.KindTask, TaskItemFields), nil
+}
+
+func (l *Loader) listContacts(ctx context.Context, companyOnly *bool) ([]model.Item, error) {
+	rows, err := l.Client.ListAllContacts(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if companyOnly != nil {
+		filtered := make([]map[string]any, 0, len(rows))
+		for _, r := range rows {
+			isCo, _ := r["isCompany"].(bool)
+			if isCo == *companyOnly {
+				filtered = append(filtered, r)
+			}
+		}
+		rows = filtered
+	}
+	return ItemsFromMaps(rows, model.KindContact, ContactItemFields), nil
+}
+
+func (l *Loader) listOpportunities(ctx context.Context) ([]model.Item, error) {
+	rows, err := l.Client.ListAllOpportunities(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(rows, model.KindOpportunity, FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "stage"}), nil
+}
+
+func (l *Loader) listCases(ctx context.Context) ([]model.Item, error) {
+	cases, _, err := l.Client.ListCases(ctx, 100, 0)
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(cases, model.KindCase, FieldMap{IDKey: "id", TitleKey: "title"}), nil
+}
+
+func (l *Loader) listCRMTasks(ctx context.Context) ([]model.Item, error) {
+	rows, _, err := l.Client.ListCRMTasks(ctx, 100, 0)
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(rows, model.KindCRMTask, TaskItemFields), nil
+}
+
+func (l *Loader) listMail(ctx context.Context, folder int, startIndex int) ([]model.Item, error) {
+	rows, err := l.Client.ListMailMessages(ctx, onlyoffice.MailMessagesFilter{
+		Folder:     folder,
+		Count:      MailListPageSize,
+		StartIndex: startIndex,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return ItemsFromMaps(rows, model.KindMail, MailItemFields), nil
+}
+
+// ListMailMore loads the next page of messages for an active mail folder list.
+func (l *Loader) ListMailMore(ctx context.Context, spec model.ListSpec, startIndex int) ([]model.Item, error) {
+	folder, ok := mailFolderForSubject(spec.Subject)
+	if !ok {
+		return nil, fmt.Errorf("fetch: %q is not a mail folder", spec.Subject)
+	}
+	return l.listMail(ctx, folder, startIndex)
+}
+
+func mailFolderForSubject(subject model.Subject) (int, bool) {
+	switch subject {
+	case model.SubjectMailInbox:
+		return onlyoffice.MailFolderInbox, true
+	case model.SubjectMailSent:
+		return onlyoffice.MailFolderSent, true
+	case model.SubjectMailDrafts:
+		return onlyoffice.MailFolderDrafts, true
+	case model.SubjectMailTrash:
+		return onlyoffice.MailFolderTrash, true
+	case model.SubjectMailSpam:
+		return onlyoffice.MailFolderSpam, true
+	default:
+		return 0, false
+	}
+}
+
+func (l *Loader) listProjectFiles(ctx context.Context, projectID string) ([]model.Item, error) {
+	resp, err := l.Client.GetProjectFiles(ctx, projectID)
+	if err != nil {
+		return nil, err
+	}
+	var items []model.Item
+	for _, f := range resp.Files {
+		id, title := "", ""
+		if f.ID != nil {
+			id = f.ID.String()
+		}
+		if f.Title != nil {
+			title = *f.Title
+		}
+		items = append(items, model.Item{
+			ID: id, Title: title, Kind: model.KindFile,
+			Raw: map[string]any{"id": id, "title": title},
+		})
+	}
+	return items, nil
+}

cmd/office/fetch/map.go

@@ -0,0 +1,78 @@
+package fetch
+
+import (
+	"fmt"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// FieldMap names the JSON keys used when building list items from API rows.
+type FieldMap struct {
+	IDKey       string
+	TitleKey    string
+	SubtitleKey string
+}
+
+// TaskItemFields is the default field map for project tasks.
+var TaskItemFields = FieldMap{IDKey: "id", TitleKey: "title"}
+
+// ProjectItemFields is the default field map for projects.
+var ProjectItemFields = FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "status"}
+
+// ContactItemFields is the default field map for CRM contacts.
+var ContactItemFields = FieldMap{IDKey: "id", TitleKey: "displayName", SubtitleKey: "primaryEmail"}
+
+// MailItemFields is the default field map for mail messages.
+var MailItemFields = FieldMap{IDKey: "id", TitleKey: "subject", SubtitleKey: "from"}
+
+// ItemsFromMaps converts OnlyOffice list rows into TUI items.
+func ItemsFromMaps(rows []map[string]any, kind model.Kind, fields FieldMap) []model.Item {
+	out := make([]model.Item, len(rows))
+	for i, row := range rows {
+		title := str(row, fields.TitleKey)
+		if title == "" {
+			title = str(row, "title")
+		}
+		if title == "" {
+			title = str(row, "name")
+		}
+		if title == "" {
+			title = "(untitled)"
+		}
+		raw := row
+		out[i] = model.Item{
+			ID:       idStr(row, fields.IDKey),
+			Title:    title,
+			Subtitle: str(row, fields.SubtitleKey),
+			Kind:     kind,
+			Raw:      raw,
+		}
+	}
+	return out
+}
+
+func idStr(m map[string]any, key string) string {
+	if key == "" {
+		key = "id"
+	}
+	switch v := m[key].(type) {
+	case string:
+		return v
+	case float64:
+		return fmt.Sprintf("%.0f", v)
+	case int:
+		return fmt.Sprintf("%d", v)
+	default:
+		return fmt.Sprint(m[key])
+	}
+}
+
+func str(m map[string]any, key string) string {
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	if m[key] == nil {
+		return ""
+	}
+	return fmt.Sprint(m[key])
+}

cmd/office/fetch/preview.go

@@ -0,0 +1,43 @@
+package fetch
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+// PreviewMarkdown loads item data and returns markdown for the preview pane.
+func (l *Loader) PreviewMarkdown(ctx context.Context, item model.Item) (string, error) {
+	if l == nil || l.Client == nil {
+		return "", fmt.Errorf("fetch: client is nil")
+	}
+	if item.Kind == model.KindFile {
+		return l.filePreviewMarkdown(ctx, item)
+	}
+	raw, err := l.Detail(ctx, item)
+	if err != nil {
+		return "", err
+	}
+	return preview.EntityMarkdown(string(item.Kind), raw), nil
+}
+
+func (l *Loader) filePreviewMarkdown(ctx context.Context, item model.Item) (string, error) {
+	if item.ID == "" {
+		return "", fmt.Errorf("file id missing")
+	}
+	name := item.Title
+	if meta, err := l.Client.GetFile(ctx, item.ID); err == nil && meta != nil {
+		if t := onlyoffice.FileEntryTitle(meta); t != "" {
+			name = t
+		}
+	}
+	var buf bytes.Buffer
+	if _, err := l.Client.DownloadFile(ctx, item.ID, &buf); err != nil {
+		return "", err
+	}
+	return preview.FileBytesToMarkdown(name, buf.Bytes())
+}

cmd/office/fetch/save.go

@@ -0,0 +1,74 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// SaveItem persists editable form fields for supported entity kinds.
+func (l *Loader) SaveItem(ctx context.Context, item model.Item, fields model.FormFields) error {
+	if l == nil || l.Client == nil {
+		return fmt.Errorf("fetch: client is nil")
+	}
+	switch item.Kind {
+	case model.KindTask:
+		return l.UpdateTask(ctx, item.ID, fields)
+	case model.KindProject:
+		return l.saveProject(ctx, item.ID, fields)
+	case model.KindUser:
+		return l.SaveUser(ctx, item.ID, fields)
+	default:
+		return fmt.Errorf("save not supported for %s", item.Kind)
+	}
+}
+
+func (l *Loader) saveProject(ctx context.Context, projectID string, fields model.FormFields) error {
+	id, err := strconv.Atoi(projectID)
+	if err != nil {
+		return err
+	}
+	if fields.ResponsibleID == "" {
+		raw, derr := l.Detail(ctx, model.Item{ID: projectID, Kind: model.KindProject})
+		if derr == nil {
+			fields.ResponsibleID = model.ResponsibleIDFromRaw(raw)
+		}
+	}
+	req := onlyoffice.ProjectUpdateRequest{
+		ID:          id,
+		Title:       fields.Primary,
+		Description: fields.Secondary,
+	}
+	if fields.ResponsibleID != "" {
+		req.ResponsibleID = fields.ResponsibleID
+	}
+	if _, err := l.Client.UpdateProject(req); err != nil {
+		return err
+	}
+	if fields.HasStatus {
+		if _, err := l.Client.UpdateProjectStatus(id, string(fields.Status)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// DetailForm loads form field values for the detail pane.
+func (l *Loader) DetailForm(ctx context.Context, item model.Item) (model.FormFields, error) {
+	raw, err := l.Detail(ctx, item)
+	if err != nil {
+		return model.FormFields{}, err
+	}
+	fields := model.FormFieldsFromRaw(item.Kind, raw)
+	if item.Kind == model.KindTask {
+		choices, uerr := l.LoadUserChoices(ctx)
+		if uerr != nil {
+			return model.FormFields{}, uerr
+		}
+		fields.UserChoices = choices
+	}
+	return fields, nil
+}

cmd/office/fetch/save_integration_test.go

@@ -0,0 +1,52 @@
+//go:build integration
+
+package fetch_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestIntegrationSaveProject(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjects})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no projects")
+	}
+	item := items[0]
+	fields, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm: %v", err)
+	}
+	if fields.ResponsibleID == "" {
+		t.Skip("project has no responsible id on this instance")
+	}
+	marker := " office-save-test " + time.Now().UTC().Format(time.RFC3339)
+	fields.Primary = fields.Primary + marker
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Fatalf("SaveItem: %v", err)
+	}
+	after, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm after save: %v", err)
+	}
+	if after.Primary != fields.Primary {
+		t.Fatalf("title not saved: got %q want %q", after.Primary, fields.Primary)
+	}
+	fields.Primary = stringsTrimSuffixMarker(after.Primary, marker)
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Logf("cleanup save: %v", err)
+	}
+}
+
+func stringsTrimSuffixMarker(s, marker string) string {
+	if len(s) >= len(marker) && s[len(s)-len(marker):] == marker {
+		return s[:len(s)-len(marker)]
+	}
+	return s
+}

cmd/office/fetch/task.go

@@ -0,0 +1,53 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// UpdateTask saves editable task fields via the typed JSON API.
+func (l *Loader) UpdateTask(ctx context.Context, taskID string, fields model.FormFields) error {
+	return l.updateTask(ctx, taskID, fields, false)
+}
+
+// CloseTask saves fields and sets status to closed.
+func (l *Loader) CloseTask(ctx context.Context, taskID string, fields model.FormFields) error {
+	fields.TaskStatus = model.TaskLifecycleClosed
+	return l.updateTask(ctx, taskID, fields, true)
+}
+
+func (l *Loader) updateTask(ctx context.Context, taskID string, fields model.FormFields, closing bool) error {
+	if l == nil || l.Client == nil {
+		return fmt.Errorf("fetch: client is nil")
+	}
+	id, err := strconv.Atoi(taskID)
+	if err != nil {
+		return fmt.Errorf("task id %q: %w", taskID, err)
+	}
+	status := onlyoffice.ProjectTaskStatus(fields.TaskStatus)
+	if closing {
+		status = onlyoffice.ProjectTaskStatusClosed
+	}
+	req := onlyoffice.ProjectTaskUpdateRequest{
+		ID:          id,
+		Title:       fields.Primary,
+		Description: fields.Secondary,
+		Status:      status,
+	}
+	if fields.ResponsibleID != "" {
+		req.Responsible = []string{fields.ResponsibleID}
+	} else if !closing {
+		raw, derr := l.Detail(ctx, model.Item{ID: taskID, Kind: model.KindTask})
+		if derr == nil {
+			if rid := model.TaskResponsibleIDFromRaw(raw); rid != "" {
+				req.Responsible = []string{rid}
+			}
+		}
+	}
+	_, err = l.Client.UpdateProjectTask(req)
+	return err
+}

cmd/office/fetch/task_integration_test.go

@@ -0,0 +1,68 @@
+//go:build integration
+
+package fetch_test
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestIntegrationUpdateTaskTitleDescription(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectTasks})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no tasks")
+	}
+	item := items[0]
+	fields, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatal(err)
+	}
+	restore := fields
+	t.Cleanup(func() {
+		_ = loader.UpdateTask(context.Background(), item.ID, restore)
+	})
+	fields.Primary = fields.Primary + " (office TUI test)"
+	fields.Secondary = fields.Secondary + "\n\n_edited by office integration test_"
+	if err := loader.UpdateTask(ctx, item.ID, fields); err != nil {
+		t.Fatal(err)
+	}
+	got, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Primary != fields.Primary {
+		t.Fatalf("title: got %q want %q", got.Primary, fields.Primary)
+	}
+	if got.Secondary != fields.Secondary {
+		t.Fatalf("description mismatch")
+	}
+}
+
+func TestIntegrationTaskFieldsFromLiveAPI(t *testing.T) {
+	if os.Getenv("ONLYOFFICE_URL") == "" && os.Getenv("ONLYOFFICE_HOST") == "" {
+		t.Skip("ONLYOFFICE_URL not set")
+	}
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectTasks})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no tasks")
+	}
+	title, desc, err := loader.TaskFields(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	if title == "" {
+		t.Fatal("empty title")
+	}
+	_ = desc
+}

cmd/office/fetch/user.go

@@ -0,0 +1,131 @@
+package fetch
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	onlyoffice "github.com/eslider/go-onlyoffice"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func (l *Loader) listUsers(ctx context.Context) ([]model.Item, error) {
+	users, err := l.Client.GetUsers()
+	if err != nil {
+		return nil, err
+	}
+	items := make([]model.Item, 0, len(users))
+	for _, u := range users {
+		if u == nil {
+			continue
+		}
+		raw := userToRaw(u)
+		id := strMap(raw, "id")
+		userName := strMap(raw, "userName")
+		if userName == "" {
+			userName = strMap(raw, "email")
+		}
+		items = append(items, model.Item{
+			ID:    id,
+			Title: userName,
+			Kind:  model.KindUser,
+			Raw:   raw,
+		})
+	}
+	return items, nil
+}
+
+func userToRaw(u *onlyoffice.User) map[string]any {
+	b, err := json.Marshal(u)
+	if err != nil {
+		return map[string]any{}
+	}
+	var raw map[string]any
+	if err := json.Unmarshal(b, &raw); err != nil {
+		return map[string]any{}
+	}
+	return raw
+}
+
+func strMap(m map[string]any, key string) string {
+	if m == nil {
+		return ""
+	}
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	if m[key] == nil {
+		return ""
+	}
+	return fmt.Sprint(m[key])
+}
+
+func userProfileUpdateBody(isAdmin bool, modules []string) map[string]any {
+	body := map[string]any{
+		"isAdmin": isAdmin,
+	}
+	if !isAdmin {
+		body["listAdminModules"] = modules
+	}
+	return body
+}
+
+// SaveUser persists user account settings from the detail form.
+func (l *Loader) SaveUser(ctx context.Context, userID string, fields model.FormFields) error {
+	if l == nil || l.Client == nil {
+		return fmt.Errorf("fetch: client is nil")
+	}
+	raw, err := l.Client.GetUser(ctx, userID)
+	if err != nil {
+		return err
+	}
+	wasEnabled := model.UserIsEnabled(raw)
+
+	if fields.UserEnabled && !wasEnabled {
+		if err := l.Client.ChangeUserStatus(ctx, userID, true); err != nil {
+			return err
+		}
+	}
+
+	isAdmin, modules := fields.UserACL.APIPayload()
+	body := userProfileUpdateBody(isAdmin, modules)
+	if _, err := l.updateUserProfile(ctx, userID, body, fields.UserEnabled); err != nil {
+		return err
+	}
+
+	if !fields.UserEnabled && wasEnabled {
+		if err := l.Client.ChangeUserStatus(ctx, userID, false); err != nil {
+			return err
+		}
+	}
+
+	if fields.UserPassword != "" {
+		if err := l.Client.ChangeUserPassword(ctx, userID, fields.UserPassword); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (l *Loader) updateUserProfile(ctx context.Context, userID string, body map[string]any, wantEnabled bool) (map[string]any, error) {
+	out, err := l.Client.UpdateUser(ctx, userID, body)
+	if err == nil {
+		return out, nil
+	}
+	if wantEnabled && isSuspendedUserError(err) {
+		if actErr := l.Client.ChangeUserStatus(ctx, userID, true); actErr != nil {
+			return nil, err
+		}
+		return l.Client.UpdateUser(ctx, userID, body)
+	}
+	return nil, err
+}
+
+func isSuspendedUserError(err error) bool {
+	if err == nil {
+		return false
+	}
+	msg := strings.ToLower(err.Error())
+	return strings.Contains(msg, "suspended") || strings.Contains(msg, "terminated")
+}

cmd/office/fetch/user_test.go

@@ -0,0 +1,34 @@
+package fetch
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestUserProfileUpdateBodyOmitsStatus(t *testing.T) {
+	body := userProfileUpdateBody(true, nil)
+	if _, ok := body["status"]; ok {
+		t.Fatal("profile update must not include status")
+	}
+	if body["isAdmin"] != true {
+		t.Fatal("expected isAdmin true")
+	}
+}
+
+func TestUserProfileUpdateBodyPartialAdminModules(t *testing.T) {
+	body := userProfileUpdateBody(false, []string{"documents", "crm"})
+	if body["isAdmin"] != false {
+		t.Fatal("expected partial admin")
+	}
+	mods, ok := body["listAdminModules"].([]string)
+	if !ok || len(mods) != 2 {
+		t.Fatalf("modules=%v", body["listAdminModules"])
+	}
+}
+
+func TestIsSuspendedUserError(t *testing.T) {
+	err := fmt.Errorf(`PUT JSON /api/2.0/people/x: 500 {"error":{"message":"The user is suspended"}}`)
+	if !isSuspendedUserError(err) {
+		t.Fatal("expected suspended detection")
+	}
+}

cmd/office/fetch/users.go

@@ -0,0 +1,33 @@
+package fetch
+
+import (
+	"context"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// LoadUserChoices returns portal users for responsible pickers.
+func (l *Loader) LoadUserChoices(ctx context.Context) ([]model.UserOption, error) {
+	if l == nil || l.Client == nil {
+		return nil, nil
+	}
+	users, err := l.Client.GetUsers()
+	if err != nil {
+		return nil, err
+	}
+	out := make([]model.UserOption, 0, len(users))
+	for _, u := range users {
+		if u == nil || u.ID == nil || *u.ID == "" {
+			continue
+		}
+		name := ""
+		if u.DisplayName != nil {
+			name = *u.DisplayName
+		}
+		if name == "" && u.Email != nil {
+			name = *u.Email
+		}
+		out = append(out, model.UserOption{ID: *u.ID, Name: name})
+	}
+	return out, nil
+}

cmd/office/main.go

@@ -0,0 +1,34 @@
+// Command office is a terminal UI for OnlyOffice Workspace.
+//
+// Three-pane layout: module tree (left), selectable list (center),
+// markdown preview (right). Uses github.com/eslider/go-onlyoffice for API calls.
+//
+// Build & install:
+//
+//	go install github.com/eslider/go-onlyoffice/cmd/office@latest
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/eslider/go-onlyoffice/cmd/internal/bootstrap"
+	"github.com/eslider/go-onlyoffice/cmd/office/ui"
+)
+
+func main() {
+	client, err := bootstrap.NewClient(context.Background())
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+
+	m := ui.NewModel(client)
+	p := tea.NewProgram(m, tea.WithAltScreen(), tea.WithMouseCellMotion())
+	if _, err := p.Run(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

cmd/office/model/actions.go

@@ -0,0 +1,69 @@
+package model
+
+// ActionID identifies an operation on a list item.
+type ActionID string
+
+const (
+	ActionView     ActionID = "view"
+	ActionSave     ActionID = "save"
+	ActionClose    ActionID = "close"
+	ActionDelete   ActionID = "delete"
+	ActionRefresh  ActionID = "refresh"
+	ActionDownload ActionID = "download"
+)
+
+// ItemAction is one CRUD-style operation offered for an item.
+type ItemAction struct {
+	ID     ActionID
+	Label  string
+	Danger bool
+}
+
+// ActionsFor returns available operations for an item kind (detail pane action bar).
+func ActionsFor(kind Kind) []ItemAction {
+	switch kind {
+	case KindProject:
+		return []ItemAction{
+			{ID: ActionSave, Label: "Save"},
+			{ID: ActionDelete, Label: "Delete", Danger: true},
+		}
+	case KindTask:
+		return []ItemAction{
+			{ID: ActionSave, Label: "Save"},
+			{ID: ActionClose, Label: "Close"},
+		}
+	case KindCRMTask:
+		return []ItemAction{
+			{ID: ActionDelete, Label: "Delete", Danger: true},
+		}
+	case KindContact:
+		return []ItemAction{
+			{ID: ActionDelete, Label: "Delete contact", Danger: true},
+		}
+	case KindOpportunity:
+		return []ItemAction{
+			{ID: ActionDelete, Label: "Delete deal", Danger: true},
+		}
+	case KindCase:
+		return []ItemAction{
+			{ID: ActionDelete, Label: "Delete case", Danger: true},
+		}
+	case KindMail:
+		return []ItemAction{
+			{ID: ActionDelete, Label: "Delete message", Danger: true},
+		}
+	case KindFile:
+		return []ItemAction{
+			{ID: ActionDownload, Label: "Download"},
+			{ID: ActionDelete, Label: "Delete file", Danger: true},
+		}
+	case KindUser:
+		return []ItemAction{
+			{ID: ActionSave, Label: "Save"},
+		}
+	case KindEvent, KindCalendar:
+		return nil
+	default:
+		return nil
+	}
+}

cmd/office/model/calendar_display.go

@@ -0,0 +1,40 @@
+package model
+
+import "fmt"
+
+// ClassifyCalendarRow decides whether an API row is a calendar or an event.
+func ClassifyCalendarRow(raw map[string]any) (Kind, string) {
+	if raw == nil {
+		return KindCalendar, "Calendar"
+	}
+	if strRaw(raw, "start") != "" || strRaw(raw, "end") != "" {
+		return KindEvent, "Event"
+	}
+	if strRaw(raw, "eventType") != "" {
+		return KindEvent, "Event"
+	}
+	return KindCalendar, "Calendar"
+}
+
+// CalendarTypeLabel returns the type column text for a calendar list row.
+func CalendarTypeLabel(it Item) string {
+	if it.Raw != nil {
+		if t := strRaw(it.Raw, "type"); t != "" {
+			return t
+		}
+	}
+	_, label := ClassifyCalendarRow(it.Raw)
+	return label
+}
+
+// FormatCalendarDateTime formats start/end timestamps for the calendar table.
+func FormatCalendarDateTime(v any) string {
+	t, ok := parseDeadlineTime(v)
+	if !ok {
+		if s := fmt.Sprint(v); s != "" && s != "<nil>" {
+			return s
+		}
+		return ""
+	}
+	return t.Format("Jan 2 15:04")
+}

cmd/office/model/calendar_display_test.go

@@ -0,0 +1,37 @@
+package model
+
+import "testing"
+
+func TestClassifyCalendarRow(t *testing.T) {
+	kind, label := ClassifyCalendarRow(map[string]any{
+		"title": "Standup",
+		"start": "2026-06-24T10:00:00Z",
+	})
+	if kind != KindEvent || label != "Event" {
+		t.Fatalf("got kind=%s label=%q", kind, label)
+	}
+	kind, label = ClassifyCalendarRow(map[string]any{"title": "Work"})
+	if kind != KindCalendar || label != "Calendar" {
+		t.Fatalf("got kind=%s label=%q", kind, label)
+	}
+}
+
+func TestBuildCalendarColumnsIncludesType(t *testing.T) {
+	items := []Item{{
+		ID: "1", Title: "Meet", Kind: KindEvent,
+		Raw: map[string]any{"type": "Event", "start": "2026-06-24T10:00:00Z"},
+	}}
+	cols := BuildColumns(SubjectCalendar, items)
+	found := false
+	for _, c := range cols {
+		if c.Key == "type" {
+			found = true
+		}
+		if c.Key == "subtitle" {
+			t.Fatal("subtitle column should not appear")
+		}
+	}
+	if !found {
+		t.Fatal("expected type column")
+	}
+}

cmd/office/model/columns.go

@@ -0,0 +1,400 @@
+package model
+
+import (
+	"fmt"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+// TableColumn is one column in the center data table.
+type TableColumn struct {
+	Key   string
+	Title string
+	Width int
+}
+
+var subjectExtraKeys = map[Subject][]string{
+	SubjectTasks:         {"status", "deadline", "responsible"},
+	SubjectCalendars:     {"description"},
+	SubjectEvents:        {"start", "end"},
+	SubjectContacts:      {"primaryEmail", "displayName"},
+	SubjectPersons:       {"primaryEmail", "displayName"},
+	SubjectCompanies:     {"primaryEmail", "displayName"},
+	SubjectOpportunities: {"stage", "bidValue", "bidCurrency"},
+	SubjectCases:         {"status"},
+	SubjectCRMTasks:      {"status", "deadline"},
+	SubjectMailInbox:     {"from", "date"},
+	SubjectMailSent:      {"to", "date"},
+	SubjectMailDrafts:    {"to", "date"},
+	SubjectMailTrash:     {"from", "date"},
+	SubjectMailSpam:      {"from", "date"},
+}
+
+// BuildColumns derives table columns from the list subject and item payloads.
+func BuildColumns(subject Subject, items []Item) []TableColumn {
+	if subject == SubjectProjects {
+		return buildProjectColumns(items)
+	}
+	if subject == SubjectUsers {
+		return buildUserColumns(items)
+	}
+	if subject == SubjectTasks {
+		return buildTaskColumns(items)
+	}
+	if subject == SubjectCalendar {
+		return buildCalendarColumns(items)
+	}
+	cols := []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 10},
+		{Key: "title", Title: "Title", Width: 28},
+	}
+	if hasSubtitle(items) {
+		cols = append(cols, TableColumn{Key: "subtitle", Title: "Subtitle", Width: 22})
+	}
+
+	seen := map[string]bool{"_sel": true, "id": true, "title": true, "subtitle": true}
+	for _, key := range subjectExtraKeys[subject] {
+		if seen[key] || !columnHasData(items, key) {
+			continue
+		}
+		seen[key] = true
+		cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+	}
+
+	discovered := discoverRawKeys(items, seen, 8)
+	for _, key := range discovered {
+		cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+	}
+
+	sizeColumns(cols, items)
+	return cols
+}
+
+func buildCalendarColumns(items []Item) []TableColumn {
+	cols := []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 10},
+		{Key: "type", Title: "Type", Width: 10},
+		{Key: "title", Title: "Title", Width: 28},
+	}
+	for _, key := range []string{"start", "end"} {
+		if columnHasData(items, key) {
+			cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+		}
+	}
+	sizeColumns(cols, items)
+	return cols
+}
+
+func buildTaskColumns(items []Item) []TableColumn {
+	cols := []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 8},
+		{Key: "title", Title: "Title", Width: 28},
+		{Key: "status", Title: "Status", Width: 10},
+	}
+	for _, key := range []string{"deadline", "responsible"} {
+		if columnHasData(items, key) {
+			cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+		}
+	}
+	sizeColumns(cols, items)
+	return cols
+}
+
+func buildUserColumns(items []Item) []TableColumn {
+	_ = items
+	return []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "userName", Title: "User", Width: 14},
+		{Key: "registration", Title: "Registered", Width: 12},
+		{Key: "status", Title: "Status", Width: 10},
+		{Key: "email", Title: "Email", Width: 20},
+	}
+}
+
+func buildProjectColumns(items []Item) []TableColumn {
+	_ = items
+	return []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 8},
+		{Key: "status", Title: "●", Width: 10},
+		{Key: "title", Title: "Title", Width: 16},
+		{Key: "tasks", Title: "Tasks", Width: 11},
+		{Key: "documents", Title: "Docs", Width: 7},
+		{Key: "users", Title: "Users", Width: 7},
+	}
+}
+
+// CellText returns the display string for one table cell.
+func CellText(it Item, key string) string {
+	switch key {
+	case "_sel":
+		if it.Selected {
+			return "●"
+		}
+		return "○"
+	case "id":
+		return it.ID
+	case "title":
+		return it.Title
+	case "type":
+		return CalendarTypeLabel(it)
+	case "start", "end":
+		if it.Raw == nil {
+			return ""
+		}
+		if formatted := FormatCalendarDateTime(it.Raw[key]); formatted != "" {
+			return formatted
+		}
+		return formatAny(it.Raw[key])
+	case "status":
+		switch it.Kind {
+		case KindProject:
+			return ProjectStatusCell(it.Raw)
+		case KindUser:
+			return UserStatusLabel(it.Raw)
+		case KindTask, KindCRMTask:
+			if it.Raw == nil {
+				return ""
+			}
+			return TaskStatusLabel(it.Raw["status"])
+		default:
+			if it.Raw == nil {
+				return ""
+			}
+			return formatAny(it.Raw["status"])
+		}
+	case "deadline":
+		if it.Raw == nil {
+			return ""
+		}
+		// CRM tasks use camelCase deadLine; project tasks use deadline.
+		rawDL := it.Raw["deadline"]
+		if rawDL == nil || formatAny(rawDL) == "" {
+			rawDL = it.Raw["deadLine"]
+		}
+		if rel := FormatRelativeDeadline(rawDL); rel != "" {
+			return rel
+		}
+		return formatAny(rawDL)
+	case "responsible":
+		if it.Kind == KindTask || it.Kind == KindCRMTask {
+			return TaskResponsibleLabel(it.Raw)
+		}
+		if it.Raw == nil {
+			return ""
+		}
+		return formatAny(it.Raw["responsible"])
+	case "subtitle":
+		return it.Subtitle
+	case "userName":
+		if it.Raw != nil {
+			if u := strRaw(it.Raw, "userName"); u != "" {
+				return u
+			}
+		}
+		return it.Title
+	case "registration":
+		return FormatUserRegistration(it.Raw)
+	case "email":
+		if it.Raw != nil {
+			return strRaw(it.Raw, "email")
+		}
+		return it.Subtitle
+	case "tasks":
+		return formatProjectTasks(it.Raw)
+	case "documents":
+		return intRaw(it.Raw, "documentsCount")
+	case "users":
+		return intRaw(it.Raw, "participantCount")
+	case "kind":
+		return string(it.Kind)
+	default:
+		if it.Raw == nil {
+			return ""
+		}
+		return formatAny(it.Raw[key])
+	}
+}
+
+func formatProjectTasks(raw map[string]any) string {
+	if raw == nil {
+		return "0/0"
+	}
+	open := intRawVal(raw, "taskCount")
+	total := intRawVal(raw, "taskCountTotal")
+	closed := total - open
+	if closed < 0 {
+		closed = 0
+	}
+	return fmt.Sprintf("%d/%d", open, closed)
+}
+
+func intRaw(raw map[string]any, key string) string {
+	if raw == nil {
+		return ""
+	}
+	v := intRawVal(raw, key)
+	if v == 0 {
+		if _, ok := raw[key]; !ok {
+			return ""
+		}
+	}
+	return fmt.Sprintf("%d", v)
+}
+
+func intRawVal(raw map[string]any, key string) int {
+	if raw == nil {
+		return 0
+	}
+	switch v := raw[key].(type) {
+	case int:
+		return v
+	case int64:
+		return int(v)
+	case float64:
+		return int(v)
+	case string:
+		n, _ := strconv.Atoi(v)
+		return n
+	default:
+		if raw[key] == nil {
+			return 0
+		}
+		n, _ := strconv.Atoi(fmt.Sprint(raw[key]))
+		return n
+	}
+}
+
+func hasSubtitle(items []Item) bool {
+	for _, it := range items {
+		if it.Subtitle != "" {
+			return true
+		}
+	}
+	return false
+}
+
+func columnHasData(items []Item, key string) bool {
+	for _, it := range items {
+		if CellText(it, key) != "" {
+			return true
+		}
+	}
+	return false
+}
+
+func discoverRawKeys(items []Item, seen map[string]bool, limit int) []string {
+	counts := map[string]int{}
+	for _, it := range items {
+		if it.Raw == nil {
+			continue
+		}
+		for k := range it.Raw {
+			if seen[k] || k == "id" || k == "title" {
+				continue
+			}
+			counts[k]++
+		}
+	}
+	type kv struct {
+		k string
+		n int
+	}
+	var ranked []kv
+	for k, n := range counts {
+		ranked = append(ranked, kv{k, n})
+	}
+	sort.Slice(ranked, func(i, j int) bool {
+		if ranked[i].n == ranked[j].n {
+			return ranked[i].k < ranked[j].k
+		}
+		return ranked[i].n > ranked[j].n
+	})
+	out := make([]string, 0, limit)
+	for _, r := range ranked {
+		if len(out) >= limit {
+			break
+		}
+		out = append(out, r.k)
+	}
+	return out
+}
+
+func titleLabel(key string) string {
+	if key == "" {
+		return ""
+	}
+	parts := strings.Split(key, "_")
+	for i, p := range parts {
+		if p == "" {
+			continue
+		}
+		parts[i] = strings.ToUpper(p[:1]) + p[1:]
+	}
+	return strings.Join(parts, " ")
+}
+
+func defaultWidth(key string) int {
+	switch key {
+	case "id", "status", "stage":
+		return 10
+	case "start", "end", "deadline", "date":
+		return 20
+	case "from", "to", "email", "primaryEmail":
+		return 22
+	case "description", "displayName":
+		return 24
+	default:
+		return 14
+	}
+}
+
+func sizeColumns(cols []TableColumn, items []Item) {
+	for i := range cols {
+		maxW := runeLen(cols[i].Title)
+		for _, it := range items {
+			n := runeLen(CellText(it, cols[i].Key))
+			if n > maxW {
+				maxW = n
+			}
+		}
+		maxW += 2
+		if maxW < 4 {
+			maxW = 4
+		}
+		if maxW > 36 {
+			maxW = 36
+		}
+		cols[i].Width = maxW
+	}
+}
+
+func runeLen(s string) int {
+	return len([]rune(s))
+}
+
+func formatAny(v any) string {
+	if v == nil {
+		return ""
+	}
+	switch x := v.(type) {
+	case string:
+		return x
+	case bool:
+		if x {
+			return "yes"
+		}
+		return "no"
+	case float64:
+		if x == float64(int64(x)) {
+			return fmt.Sprintf("%d", int64(x))
+		}
+		return fmt.Sprintf("%g", x)
+	default:
+		return fmt.Sprint(v)
+	}
+}

cmd/office/model/columns_test.go

@@ -0,0 +1,79 @@
+package model
+
+import "testing"
+
+func TestBuildProjectColumns(t *testing.T) {
+	items := []Item{{
+		ID: "1", Title: "Alpha", Kind: KindProject,
+		Raw: map[string]any{
+			"taskCount": 3, "taskCountTotal": 5,
+			"documentsCount": 2, "participantCount": 4,
+		},
+	}}
+	cols := BuildColumns(SubjectProjects, items)
+	want := []string{"_sel", "id", "status", "title", "tasks", "documents", "users"}
+	if len(cols) != len(want) {
+		t.Fatalf("got %d columns, want %d", len(cols), len(want))
+	}
+	for i, key := range want {
+		if cols[i].Key != key {
+			t.Fatalf("col[%d]=%q want %q", i, cols[i].Key, key)
+		}
+	}
+	for _, c := range cols {
+		if c.Key == "subtitle" {
+			t.Fatalf("unexpected column %q", c.Key)
+		}
+	}
+}
+
+func TestCellTextProjectStatus(t *testing.T) {
+	open := Item{Kind: KindProject, Raw: map[string]any{"status": 0}}
+	if got := CellText(open, "status"); got != "🟢 Open" {
+		t.Fatalf("got %q", got)
+	}
+	closed := Item{Kind: KindProject, Raw: map[string]any{"status": 2}}
+	if got := CellText(closed, "status"); got != "🔴 Closed" {
+		t.Fatalf("got %q", got)
+	}
+	paused := Item{Kind: KindProject, Raw: map[string]any{"status": 1}}
+	if got := CellText(paused, "status"); got != "🟡 Paused" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestBuildProjectColumnsStatusHeaderIsIcon(t *testing.T) {
+	cols := BuildColumns(SubjectProjects, nil)
+	for _, c := range cols {
+		if c.Key == "status" && c.Title != "●" {
+			t.Fatalf("status header=%q want ●", c.Title)
+		}
+	}
+}
+
+func TestFormatProjectTasksOpenClosed(t *testing.T) {
+	raw := map[string]any{"taskCount": 3, "taskCountTotal": 8}
+	if got := formatProjectTasks(raw); got != "3/5" {
+		t.Fatalf("got %q want 3/5", got)
+	}
+}
+
+func TestCellTextProjectDocumentsUsers(t *testing.T) {
+	it := Item{Raw: map[string]any{"documentsCount": 7, "participantCount": 2}}
+	if got := CellText(it, "documents"); got != "7" {
+		t.Fatalf("documents: %q", got)
+	}
+	if got := CellText(it, "users"); got != "2" {
+		t.Fatalf("users: %q", got)
+	}
+}
+
+func TestBuildColumnsIncludesSelectionAndCoreFields(t *testing.T) {
+	items := []Item{
+		{ID: "1", Title: "Alpha", Kind: KindTask, Raw: map[string]any{"status": "Open"}},
+	}
+	cols := BuildColumns(SubjectTasks, items)
+	if cols[0].Key != "_sel" {
+		t.Fatalf("first column should be selection, got %q", cols[0].Key)
+	}
+}

cmd/office/model/filter.go

@@ -0,0 +1,34 @@
+package model
+
+import (
+	"strings"
+)
+
+// FilterItems returns items whose searchable text contains query (case-insensitive).
+func FilterItems(items []Item, query string) []Item {
+	q := strings.ToLower(strings.TrimSpace(query))
+	if q == "" {
+		out := make([]Item, len(items))
+		copy(out, items)
+		return out
+	}
+	out := make([]Item, 0, len(items))
+	for _, it := range items {
+		if strings.Contains(strings.ToLower(ItemSearchText(it)), q) {
+			out = append(out, it)
+		}
+	}
+	return out
+}
+
+// ItemSearchText joins item fields used for list filtering.
+func ItemSearchText(it Item) string {
+	var parts []string
+	parts = append(parts, it.ID, it.Title, it.Subtitle, string(it.Kind))
+	if it.Raw != nil {
+		for _, v := range it.Raw {
+			parts = append(parts, formatAny(v))
+		}
+	}
+	return strings.Join(parts, " ")
+}

cmd/office/model/filter_test.go

@@ -0,0 +1,26 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestFilterItemsByTitle(t *testing.T) {
+	items := []model.Item{
+		{ID: "1", Title: "Alpha task"},
+		{ID: "2", Title: "Beta task"},
+	}
+	got := model.FilterItems(items, "alpha")
+	if len(got) != 1 || got[0].ID != "1" {
+		t.Fatalf("got %#v", got)
+	}
+}
+
+func TestFilterItemsEmptyQueryReturnsAll(t *testing.T) {
+	items := []model.Item{{ID: "1", Title: "A"}, {ID: "2", Title: "B"}}
+	got := model.FilterItems(items, "  ")
+	if len(got) != 2 {
+		t.Fatalf("got len=%d want 2", len(got))
+	}
+}

cmd/office/model/formfields.go

@@ -0,0 +1,233 @@
+package model
+
+import "fmt"
+
+// FormFields holds editable/display fields loaded from API detail.
+type FormFields struct {
+	PrimaryLabel   string
+	SecondaryLabel string
+	Primary        string
+	Secondary      string
+	ReadOnly       bool
+	HasStatus      bool
+	Status         ProjectLifecycle
+	HasTaskStatus  bool
+	TaskStatus     TaskLifecycle
+	HasResponsible bool
+	ResponsibleID  string
+	UserChoices    []UserOption
+	ProjectTitle   string
+	TimingSummary  string
+	HasUserEdit    bool
+	UserEnabled    bool
+	UserACL        UserACLState
+	GroupsText     string
+	UserPassword   string
+}
+
+// KindHeading returns a short label for the detail pane header.
+func KindHeading(kind Kind, id string) string {
+	return fmt.Sprintf("%s %s", kindLabel(kind), id)
+}
+
+func kindLabel(kind Kind) string {
+	switch kind {
+	case KindProject:
+		return "Project"
+	case KindTask:
+		return "Task"
+	case KindCRMTask:
+		return "CRM task"
+	case KindContact:
+		return "Contact"
+	case KindOpportunity:
+		return "Deal"
+	case KindCase:
+		return "Case"
+	case KindMail:
+		return "Mail"
+	case KindEvent:
+		return "Event"
+	case KindCalendar:
+		return "Calendar"
+	case KindFile:
+		return "Document"
+	case KindUser:
+		return "User"
+	default:
+		return string(kind)
+	}
+}
+
+// FormFieldsFromRaw maps API detail JSON to form fields for the right pane.
+func FormFieldsFromRaw(kind Kind, raw map[string]any) FormFields {
+	switch kind {
+	case KindMail:
+		body := strRaw(raw, "body")
+		if body == "" {
+			body = strRaw(raw, "htmlBody")
+		}
+		return FormFields{
+			PrimaryLabel: "Subject", SecondaryLabel: "Body",
+			Primary: strRaw(raw, "subject"), Secondary: body,
+			ReadOnly: true,
+		}
+	case KindUser:
+		acl := UserACLFromRaw(raw)
+		return FormFields{
+			HasUserEdit: true,
+			ReadOnly:    false,
+			UserEnabled: UserIsEnabled(raw),
+			UserACL:     acl,
+			GroupsText:  UserGroupsText(raw),
+		}
+	case KindContact:
+		name := strRaw(raw, "displayName")
+		if name == "" {
+			name = strRaw(raw, "title")
+		}
+		return FormFields{
+			PrimaryLabel: "Name", SecondaryLabel: "About",
+			Primary: name, Secondary: strRaw(raw, "about"),
+			ReadOnly: true,
+		}
+	case KindEvent, KindCalendar:
+		return FormFields{
+			PrimaryLabel: "Title", SecondaryLabel: "Description",
+			Primary: strRaw(raw, "title"), Secondary: strRaw(raw, "description"),
+			ReadOnly: true,
+		}
+	case KindProject:
+		title := strRaw(raw, "title")
+		if title == "" {
+			title = strRaw(raw, "name")
+		}
+		return FormFields{
+			PrimaryLabel:   "Title",
+			SecondaryLabel: "Description",
+			Primary:        title,
+			Secondary:      strRaw(raw, "description"),
+			ReadOnly:       false,
+			HasStatus:      true,
+			Status:         ProjectStatusFromAny(raw["status"]),
+			ResponsibleID:  ResponsibleIDFromRaw(raw),
+		}
+	case KindTask:
+		return FormFields{
+			PrimaryLabel:   "Title",
+			SecondaryLabel: "Description",
+			Primary:        strRaw(raw, "title"),
+			Secondary:      strRaw(raw, "description"),
+			ReadOnly:       false,
+			HasTaskStatus:  true,
+			TaskStatus:     TaskStatusFromAny(raw["status"]),
+			HasResponsible: true,
+			ResponsibleID:  TaskResponsibleIDFromRaw(raw),
+			ProjectTitle:   TaskProjectTitle(raw),
+			TimingSummary:  TaskTimingSummary(raw),
+		}
+	default:
+		title := strRaw(raw, "title")
+		if title == "" {
+			title = strRaw(raw, "name")
+		}
+		if title == "" {
+			title = strRaw(raw, "subject")
+		}
+		return FormFields{
+			PrimaryLabel: "Title", SecondaryLabel: "Description",
+			Primary: title, Secondary: strRaw(raw, "description"),
+			ReadOnly: true,
+		}
+	}
+}
+
+// TaskResponsibleIDFromRaw returns the first assignee user id from task detail.
+func TaskResponsibleIDFromRaw(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	if ids, ok := raw["responsibleIds"].([]any); ok && len(ids) > 0 {
+		return strRaw(map[string]any{"id": ids[0]}, "id")
+	}
+	if list, ok := raw["responsibles"].([]any); ok && len(list) > 0 {
+		if m, ok := list[0].(map[string]any); ok {
+			return strRaw(m, "id")
+		}
+	}
+	return ""
+}
+
+// TaskProjectTitle returns the owning project title when present.
+func TaskProjectTitle(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	if po, ok := raw["projectOwner"].(map[string]any); ok {
+		if t := strRaw(po, "title"); t != "" {
+			return t
+		}
+	}
+	return strRaw(raw, "projectTitle")
+}
+
+// TaskTimingSummary formats start and deadline for the detail form.
+func TaskTimingSummary(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	start := formatTaskDateLabel(raw["startDate"])
+	deadline := formatTaskDateLabel(raw["deadline"])
+	switch {
+	case start != "" && deadline != "":
+		return start + " → " + deadline
+	case deadline != "":
+		return "Due " + deadline
+	case start != "":
+		return "From " + start
+	default:
+		return ""
+	}
+}
+
+func formatTaskDateLabel(v any) string {
+	t, ok := parseDeadlineTime(v)
+	if !ok {
+		s := strRaw(map[string]any{"v": v}, "v")
+		if s == "" || s == "<nil>" {
+			return ""
+		}
+		return s
+	}
+	return t.Format("2006-01-02 15:04")
+}
+
+func strRaw(m map[string]any, key string) string {
+	if m == nil {
+		return ""
+	}
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	if m[key] == nil {
+		return ""
+	}
+	return fmt.Sprint(m[key])
+}
+
+// ResponsibleIDFromRaw extracts the project responsible user id from API detail.
+func ResponsibleIDFromRaw(raw map[string]any) string {
+	if id := strRaw(raw, "responsibleId"); id != "" {
+		return id
+	}
+	resp, ok := raw["responsible"].(map[string]any)
+	if !ok {
+		return ""
+	}
+	return strRaw(resp, "id")
+}
+
+// IsDocumentKind is true when the right pane should show rendered preview content, not an editable form.
+func IsDocumentKind(kind Kind) bool {
+	return kind == KindFile || kind == KindMail
+}

cmd/office/model/formfields_task_test.go

@@ -0,0 +1,42 @@
+package model
+
+import "testing"
+
+func TestTaskStatusLifecycleCycle(t *testing.T) {
+	cur := TaskLifecycleOpen
+	cur = cur.Next()
+	if cur != TaskLifecycleClosed {
+		t.Fatalf("got %v", cur)
+	}
+	cur = cur.Prev()
+	if cur != TaskLifecycleOpen {
+		t.Fatalf("got %v", cur)
+	}
+}
+
+func TestFormFieldsFromRawTask(t *testing.T) {
+	raw := map[string]any{
+		"title":       "Fix",
+		"description": "Details",
+		"status":      1,
+		"projectOwner": map[string]any{"title": "Alpha"},
+		"startDate":   "2026-06-01T10:00:00Z",
+		"deadline":    "2026-06-10T18:00:00Z",
+		"responsibles": []any{
+			map[string]any{"id": "u1", "displayName": "Alice"},
+		},
+	}
+	f := FormFieldsFromRaw(KindTask, raw)
+	if !f.HasTaskStatus || f.TaskStatus != TaskLifecycleOpen {
+		t.Fatalf("status: %+v", f)
+	}
+	if !f.HasResponsible || f.ResponsibleID != "u1" {
+		t.Fatalf("responsible: %+v", f)
+	}
+	if f.ProjectTitle != "Alpha" {
+		t.Fatalf("project: %q", f.ProjectTitle)
+	}
+	if f.TimingSummary == "" {
+		t.Fatal("expected timing summary")
+	}
+}

cmd/office/model/formfields_test.go

@@ -0,0 +1,23 @@
+package model
+
+import "testing"
+
+func TestFormFieldsFromRawMail(t *testing.T) {
+	raw := map[string]any{"subject": "Hi", "body": "Hello"}
+	f := FormFieldsFromRaw(KindMail, raw)
+	if f.Primary != "Hi" || f.Secondary != "Hello" || !f.ReadOnly {
+		t.Fatalf("unexpected mail fields: %+v", f)
+	}
+}
+
+func TestIsDocumentKind(t *testing.T) {
+	if !IsDocumentKind(KindFile) {
+		t.Fatal("file should be document")
+	}
+	if !IsDocumentKind(KindMail) {
+		t.Fatal("mail should be document preview")
+	}
+	if IsDocumentKind(KindTask) {
+		t.Fatal("task should be form")
+	}
+}

cmd/office/model/item.go

@@ -0,0 +1,137 @@
+package model
+
+// Kind identifies the OnlyOffice entity type for list items and preview routing.
+type Kind string
+
+const (
+	KindProject     Kind = "project"
+	KindTask        Kind = "task"
+	KindContact     Kind = "contact"
+	KindOpportunity Kind = "opportunity"
+	KindCase        Kind = "case"
+	KindCRMTask     Kind = "crm_task"
+	KindMail        Kind = "mail"
+	KindEvent       Kind = "event"
+	KindCalendar    Kind = "calendar"
+	KindFile        Kind = "file"
+	KindUser        Kind = "user"
+)
+
+// Subject identifies a menu leaf / list source.
+type Subject string
+
+const (
+	SubjectProjects      Subject = "projects"
+	SubjectTasks         Subject = "tasks"
+	SubjectCalendars     Subject = "calendars"
+	SubjectEvents        Subject = "events"
+	SubjectContacts      Subject = "contacts"
+	SubjectPersons       Subject = "persons"
+	SubjectCompanies     Subject = "companies"
+	SubjectOpportunities Subject = "opportunities"
+	SubjectCases         Subject = "cases"
+	SubjectCRMTasks      Subject = "crm_tasks"
+	SubjectMailInbox     Subject = "mail_inbox"
+	SubjectMailSent      Subject = "mail_sent"
+	SubjectMailDrafts    Subject = "mail_drafts"
+	SubjectMailTrash     Subject = "mail_trash"
+	SubjectMailSpam      Subject = "mail_spam"
+	SubjectProjectFiles  Subject = "project_files"
+	SubjectTaskFiles     Subject = "task_files"
+	SubjectUsers         Subject = "users"
+	SubjectCalendar      Subject = "calendar"
+)
+
+// SubjectIsMail reports whether a list subject loads mailbox messages.
+func SubjectIsMail(s Subject) bool {
+	switch s {
+	case SubjectMailInbox, SubjectMailSent, SubjectMailDrafts, SubjectMailTrash, SubjectMailSpam:
+		return true
+	default:
+		return false
+	}
+}
+
+// FocusPane is which column has keyboard focus.
+type FocusPane int
+
+const (
+	FocusMenu FocusPane = iota
+	FocusList
+	FocusPreview
+)
+
+// PrevFocusPane cycles preview → list → menu → preview.
+func PrevFocusPane(p FocusPane) FocusPane {
+	switch p {
+	case FocusMenu:
+		return FocusPreview
+	case FocusList:
+		return FocusMenu
+	default:
+		return FocusList
+	}
+}
+
+// NextFocusPane cycles menu → list → preview → menu.
+func NextFocusPane(p FocusPane) FocusPane {
+	switch p {
+	case FocusMenu:
+		return FocusList
+	case FocusList:
+		return FocusPreview
+	default:
+		return FocusMenu
+	}
+}
+
+// Item is one row in the center list pane.
+type Item struct {
+	ID, Title, Subtitle string
+	Kind                Kind
+	Raw                 map[string]any
+	Selected            bool
+}
+
+// Selection tracks multi-selected item IDs within the current subject.
+type Selection struct {
+	ids map[string]struct{}
+}
+
+// NewSelection returns an empty selection set.
+func NewSelection() *Selection {
+	return &Selection{ids: make(map[string]struct{})}
+}
+
+// Toggle flips selection on items[idx] and updates the ID set.
+func (s *Selection) Toggle(items *[]Item, idx int) {
+	if idx < 0 || idx >= len(*items) {
+		return
+	}
+	it := &(*items)[idx]
+	it.Selected = !it.Selected
+	if it.Selected {
+		s.ids[it.ID] = struct{}{}
+	} else {
+		delete(s.ids, it.ID)
+	}
+}
+
+// Count returns the number of selected items.
+func (s *Selection) Count() int {
+	return len(s.ids)
+}
+
+// Clear removes all selections.
+func (s *Selection) Clear() {
+	s.ids = make(map[string]struct{})
+}
+
+// IDs returns selected item IDs in stable order (map iteration order is fine for display).
+func (s *Selection) IDs() []string {
+	out := make([]string, 0, len(s.ids))
+	for id := range s.ids {
+		out = append(out, id)
+	}
+	return out
+}

cmd/office/model/item_mail_test.go

@@ -0,0 +1,12 @@
+package model
+
+import "testing"
+
+func TestSubjectIsMail(t *testing.T) {
+	if !SubjectIsMail(SubjectMailInbox) {
+		t.Fatal("inbox should be mail")
+	}
+	if SubjectIsMail(SubjectProjects) {
+		t.Fatal("projects should not be mail")
+	}
+}

cmd/office/model/item_test.go

@@ -0,0 +1,45 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestSelectionToggle(t *testing.T) {
+	items := []model.Item{
+		{ID: "1", Title: "A"},
+		{ID: "2", Title: "B"},
+	}
+	sel := model.NewSelection()
+	if sel.Count() != 0 {
+		t.Fatalf("initial count=%d", sel.Count())
+	}
+	sel.Toggle(&items, 0)
+	if !items[0].Selected || sel.Count() != 1 {
+		t.Fatalf("after toggle 0: selected=%v count=%d", items[0].Selected, sel.Count())
+	}
+	sel.Toggle(&items, 0)
+	if items[0].Selected || sel.Count() != 0 {
+		t.Fatalf("after second toggle: selected=%v count=%d", items[0].Selected, sel.Count())
+	}
+}
+
+func TestSelectionClearOnSubjectChange(t *testing.T) {
+	items := []model.Item{{ID: "1", Title: "A", Selected: true}}
+	sel := model.NewSelection()
+	sel.Toggle(&items, 0)
+	sel.Clear()
+	if sel.Count() != 0 {
+		t.Fatalf("count=%d after clear", sel.Count())
+	}
+}
+
+func TestNextFocusPane(t *testing.T) {
+	if got := model.NextFocusPane(model.FocusMenu); got != model.FocusList {
+		t.Fatalf("menu->list got %v", got)
+	}
+	if got := model.NextFocusPane(model.FocusPreview); got != model.FocusMenu {
+		t.Fatalf("preview->menu got %v", got)
+	}
+}

cmd/office/model/nav.go

@@ -0,0 +1,253 @@
+package model
+
+import "strings"
+
+// ListSpec tells the fetch layer what to load when a nav leaf is active.
+type ListSpec struct {
+	Subject   Subject
+	ProjectID string
+	TaskID    string
+}
+
+// NavNode is one row in the navigation tree.
+type NavNode struct {
+	ID       string
+	Label    string
+	Branch   bool
+	List     *ListSpec // set on leaves that open the center list
+	ParentID string
+}
+
+// NavTree is a hierarchical navigator; the center list loads only on leaves.
+type NavTree struct {
+	nodes    map[string]NavNode
+	roots    []string
+	children map[string][]string
+	expanded map[string]bool
+	cursor   int
+	visible  []string
+	filter   string
+}
+
+// DefaultNavTree returns the OnlyOffice module tree (static skeleton).
+func DefaultNavTree() *NavTree {
+	t := &NavTree{
+		nodes:    make(map[string]NavNode),
+		children: make(map[string][]string),
+		expanded: make(map[string]bool),
+	}
+	add := func(id, label, parent string, branch bool, list *ListSpec) {
+		t.nodes[id] = NavNode{ID: id, Label: label, Branch: branch, List: list, ParentID: parent}
+		if parent == "" {
+			t.roots = append(t.roots, id)
+		} else {
+			t.children[parent] = append(t.children[parent], id)
+		}
+	}
+
+	add("projects", "Projects", "", false, &ListSpec{Subject: SubjectProjects})
+	add("tasks", "Tasks", "", false, &ListSpec{Subject: SubjectTasks})
+	add("projects.dynamic", "By project", "", true, nil)
+
+	add("calendar", "Calendar", "", false, &ListSpec{Subject: SubjectCalendar})
+
+	add("crm", "CRM", "", true, nil)
+	add("crm.contacts", "Contacts", "crm", false, &ListSpec{Subject: SubjectContacts})
+	add("crm.persons", "Persons", "crm", false, &ListSpec{Subject: SubjectPersons})
+	add("crm.companies", "Companies", "crm", false, &ListSpec{Subject: SubjectCompanies})
+	add("crm.opportunities", "Opportunities", "crm", false, &ListSpec{Subject: SubjectOpportunities})
+	add("crm.cases", "Cases", "crm", false, &ListSpec{Subject: SubjectCases})
+	add("crm.tasks", "CRM tasks", "crm", false, &ListSpec{Subject: SubjectCRMTasks})
+
+	add("mail", "Mail", "", true, nil)
+	add("mail.inbox", "Inbox", "mail", false, &ListSpec{Subject: SubjectMailInbox})
+	add("mail.sent", "Sent", "mail", false, &ListSpec{Subject: SubjectMailSent})
+	add("mail.drafts", "Drafts", "mail", false, &ListSpec{Subject: SubjectMailDrafts})
+	add("mail.trash", "Trash", "mail", false, &ListSpec{Subject: SubjectMailTrash})
+	add("mail.spam", "Spam", "mail", false, &ListSpec{Subject: SubjectMailSpam})
+
+	add("users", "Users", "", false, &ListSpec{Subject: SubjectUsers})
+
+	t.rebuildVisible()
+	return t
+}
+
+// RootLabels returns top-level labels (for tests).
+func (t *NavTree) RootLabels() []string {
+	out := make([]string, len(t.roots))
+	for i, id := range t.roots {
+		out[i] = t.nodes[id].Label
+	}
+	return out
+}
+
+func (t *NavTree) Cursor() int { return t.cursor }
+
+func (t *NavTree) VisibleCount() int { return len(t.visible) }
+
+func (t *NavTree) NodeAtVisible(i int) (NavNode, bool) {
+	if i < 0 || i >= len(t.visible) {
+		return NavNode{}, false
+	}
+	n, ok := t.nodes[t.visible[i]]
+	return n, ok
+}
+
+func (t *NavTree) DepthAtVisible(i int) int {
+	if i < 0 || i >= len(t.visible) {
+		return 0
+	}
+	depth := 0
+	id := t.visible[i]
+	for {
+		n, ok := t.nodes[id]
+		if !ok || n.ParentID == "" {
+			break
+		}
+		depth++
+		id = n.ParentID
+	}
+	return depth
+}
+
+func (t *NavTree) IsExpandable(i int) bool {
+	n, ok := t.NodeAtVisible(i)
+	if !ok {
+		return false
+	}
+	return n.Branch && len(t.children[n.ID]) > 0
+}
+
+func (t *NavTree) IsExpanded(i int) bool {
+	n, ok := t.NodeAtVisible(i)
+	if !ok {
+		return false
+	}
+	return t.expanded[n.ID]
+}
+
+func (t *NavTree) ToggleExpand(i int) {
+	n, ok := t.NodeAtVisible(i)
+	if !ok || !n.Branch {
+		return
+	}
+	if t.expanded[n.ID] {
+		delete(t.expanded, n.ID)
+	} else {
+		t.expanded[n.ID] = true
+	}
+	t.rebuildVisible()
+}
+
+func (t *NavTree) MoveUp() { t.SetCursor(t.cursor - 1) }
+func (t *NavTree) MoveDown() { t.SetCursor(t.cursor + 1) }
+
+func (t *NavTree) SetCursor(c int) {
+	if c < 0 {
+		c = 0
+	}
+	if c >= len(t.visible) {
+		c = len(t.visible) - 1
+	}
+	if c < 0 {
+		c = 0
+	}
+	t.cursor = c
+}
+
+// CurrentListSpec returns the list spec when the cursor is on a leaf.
+func (t *NavTree) CurrentListSpec() (*ListSpec, bool) {
+	n, ok := t.NodeAtVisible(t.cursor)
+	if !ok || n.List == nil {
+		return nil, false
+	}
+	spec := *n.List
+	return &spec, true
+}
+
+// Activate expands a branch or returns leaf list spec on Enter.
+func (t *NavTree) Activate() (*ListSpec, bool) {
+	n, ok := t.NodeAtVisible(t.cursor)
+	if !ok {
+		return nil, false
+	}
+	if n.Branch {
+		t.expanded[n.ID] = true
+		t.rebuildVisible()
+		return nil, false
+	}
+	if n.List != nil {
+		spec := *n.List
+		return &spec, true
+	}
+	return nil, false
+}
+
+func (t *NavTree) SetFilter(query string) {
+	t.filter = strings.ToLower(strings.TrimSpace(query))
+	t.rebuildVisible()
+}
+
+func (t *NavTree) ClearFilter() {
+	t.filter = ""
+	t.rebuildVisible()
+}
+
+func (t *NavTree) FilterQuery() string { return t.filter }
+
+func (t *NavTree) nodeLabelMatches(id string) bool {
+	if t.filter == "" {
+		return true
+	}
+	n, ok := t.nodes[id]
+	if !ok {
+		return false
+	}
+	return strings.Contains(strings.ToLower(n.Label), t.filter)
+}
+
+func (t *NavTree) hasMatchingDescendant(id string) bool {
+	for _, child := range t.children[id] {
+		if t.nodeLabelMatches(child) || t.hasMatchingDescendant(child) {
+			return true
+		}
+	}
+	return false
+}
+
+func (t *NavTree) visibleUnderFilter(id string) bool {
+	if t.filter == "" {
+		return true
+	}
+	return t.nodeLabelMatches(id) || t.hasMatchingDescendant(id)
+}
+
+func (t *NavTree) rebuildVisible() {
+	t.visible = t.visible[:0]
+	var walk func(id string)
+	walk = func(id string) {
+		if !t.visibleUnderFilter(id) {
+			return
+		}
+		t.visible = append(t.visible, id)
+		expanded := t.expanded[id]
+		if t.filter != "" && t.hasMatchingDescendant(id) {
+			expanded = true
+		}
+		if !expanded {
+			return
+		}
+		for _, child := range t.children[id] {
+			walk(child)
+		}
+	}
+	for _, root := range t.roots {
+		walk(root)
+	}
+	if t.cursor >= len(t.visible) {
+		t.cursor = len(t.visible) - 1
+	}
+	if t.cursor < 0 {
+		t.cursor = 0
+	}
+}

cmd/office/model/nav_projects.go

@@ -0,0 +1,31 @@
+package model
+
+import "strings"
+
+// InjectProjectNodes adds dynamic project branches under projects.dynamic.
+func (t *NavTree) InjectProjectNodes(projects []Item) {
+	// Drop prior dynamic project.* nodes.
+	for id := range t.nodes {
+		if strings.HasPrefix(id, "project.") {
+			delete(t.nodes, id)
+		}
+	}
+	t.children["projects.dynamic"] = nil
+	for _, p := range projects {
+		pid := "project." + p.ID
+		t.nodes[pid] = NavNode{ID: pid, Label: p.Title, Branch: true, ParentID: "projects.dynamic"}
+		t.children["projects.dynamic"] = append(t.children["projects.dynamic"], pid)
+		taskID := pid + ".tasks"
+		fileID := pid + ".files"
+		t.nodes[taskID] = NavNode{
+			ID: taskID, Label: "Tasks", Branch: false, ParentID: pid,
+			List: &ListSpec{Subject: SubjectTasks, ProjectID: p.ID},
+		}
+		t.nodes[fileID] = NavNode{
+			ID: fileID, Label: "Files", Branch: false, ParentID: pid,
+			List: &ListSpec{Subject: SubjectProjectFiles, ProjectID: p.ID},
+		}
+		t.children[pid] = []string{taskID, fileID}
+	}
+	t.rebuildVisible()
+}

cmd/office/model/nav_test.go

@@ -0,0 +1,147 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestNavTreeHasExpectedRoots(t *testing.T) {
+	tree := model.DefaultNavTree()
+	roots := tree.RootLabels()
+	want := []string{"Projects", "Tasks", "By project", "Calendar", "CRM", "Mail", "Users"}
+	if len(roots) != len(want) {
+		t.Fatalf("roots=%v want %v", roots, want)
+	}
+	for i, w := range want {
+		if roots[i] != w {
+			t.Fatalf("root[%d]=%q want %q", i, roots[i], w)
+		}
+	}
+}
+
+func TestNavExpandCollapse(t *testing.T) {
+	tree := model.DefaultNavTree()
+	var crm int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "CRM" {
+			crm = i
+			break
+		}
+	}
+	if crm < 0 {
+		t.Fatal("CRM node not found")
+	}
+	if !tree.IsExpandable(crm) {
+		t.Fatal("CRM should be expandable")
+	}
+	tree.ToggleExpand(crm)
+	if !tree.IsExpanded(crm) {
+		t.Fatal("CRM should expand")
+	}
+	tree.ToggleExpand(crm)
+	if tree.IsExpanded(crm) {
+		t.Fatal("CRM should collapse")
+	}
+}
+
+func TestNavCalendarLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	var found int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Calendar" {
+			found = i
+			break
+		}
+	}
+	if found < 0 {
+		t.Fatal("Calendar node not found")
+	}
+	tree.SetCursor(found)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectCalendar {
+		t.Fatalf("spec=%v ok=%v", spec, ok)
+	}
+}
+
+func TestNavProjectsLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	tree.SetCursor(0)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectProjects {
+		t.Fatalf("projects spec=%v ok=%v", spec, ok)
+	}
+}
+
+func TestNavTasksLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	var found int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Tasks" {
+			found = i
+			break
+		}
+	}
+	if found < 0 {
+		t.Fatal("Tasks node not found")
+	}
+	tree.SetCursor(found)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectTasks {
+		t.Fatalf("tasks spec=%v ok=%v", spec, ok)
+	}
+}
+
+func TestPrevFocusPane(t *testing.T) {
+	if got := model.PrevFocusPane(model.FocusList); got != model.FocusMenu {
+		t.Fatalf("got %v", got)
+	}
+	if got := model.PrevFocusPane(model.FocusMenu); got != model.FocusPreview {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestNavFilterByLabel(t *testing.T) {
+	tree := model.DefaultNavTree()
+	tree.SetFilter("inbox")
+	found := false
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Inbox" {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatal("Inbox should remain visible when filtering mail")
+	}
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Calendar" {
+			t.Fatal("Calendar should be hidden when filtering inbox")
+		}
+	}
+}
+
+func TestNavClearFilterRestoresTree(t *testing.T) {
+	tree := model.DefaultNavTree()
+	before := tree.VisibleCount()
+	tree.SetFilter("zzz-no-match")
+	if tree.VisibleCount() >= before {
+		t.Fatalf("filter should shrink visible nodes")
+	}
+	tree.ClearFilter()
+	if tree.VisibleCount() != before {
+		t.Fatalf("clear filter should restore visible count")
+	}
+}
+
+func TestActionsForContact(t *testing.T) {
+	acts := model.ActionsFor(model.KindContact)
+	if len(acts) != 1 || acts[0].ID != model.ActionDelete {
+		t.Fatalf("expected delete only, got %v", acts)
+	}
+}

cmd/office/model/project_status.go

@@ -0,0 +1,106 @@
+package model
+
+// ProjectLifecycle is the OnlyOffice project status string accepted by the API.
+type ProjectLifecycle string
+
+const (
+	ProjectLifecycleOpen   ProjectLifecycle = "open"
+	ProjectLifecyclePaused ProjectLifecycle = "paused"
+	ProjectLifecycleClosed ProjectLifecycle = "closed"
+)
+
+// ProjectStatusFromAny maps API status (int or string) to a lifecycle value.
+func ProjectStatusFromAny(v any) ProjectLifecycle {
+	switch x := v.(type) {
+	case string:
+		switch ProjectLifecycle(x) {
+		case ProjectLifecycleOpen, ProjectLifecyclePaused, ProjectLifecycleClosed:
+			return ProjectLifecycle(x)
+		}
+	case float64:
+		return projectStatusFromInt(int(x))
+	case int:
+		return projectStatusFromInt(x)
+	case int64:
+		return projectStatusFromInt(int(x))
+	}
+	return ProjectLifecycleOpen
+}
+
+func projectStatusFromInt(n int) ProjectLifecycle {
+	switch n {
+	case 1:
+		return ProjectLifecyclePaused
+	case 2:
+		return ProjectLifecycleClosed
+	default:
+		return ProjectLifecycleOpen
+	}
+}
+
+// ProjectStatusLabel returns a short UI label for list cells.
+func ProjectStatusLabel(raw map[string]any) string {
+	if raw == nil {
+		return "Open"
+	}
+	return ProjectStatusFromAny(raw["status"]).Label()
+}
+
+// ProjectStatusIcon returns the list-cell emoji for a project lifecycle state.
+func (s ProjectLifecycle) Icon() string {
+	switch s {
+	case ProjectLifecycleClosed:
+		return "🔴"
+	case ProjectLifecyclePaused:
+		return "🟡"
+	default:
+		return "🟢"
+	}
+}
+
+// ProjectStatusCell returns emoji and label on one line for project table cells.
+func ProjectStatusCell(raw map[string]any) string {
+	if raw == nil {
+		return ProjectLifecycleOpen.Icon() + " Open"
+	}
+	s := ProjectStatusFromAny(raw["status"])
+	return s.Icon() + " " + s.Label()
+}
+
+// ProjectIsOpen is true when the project is not closed.
+func ProjectIsOpen(raw map[string]any) bool {
+	if raw == nil {
+		return true
+	}
+	return ProjectStatusFromAny(raw["status"]) != ProjectLifecycleClosed
+}
+
+// Label returns a human-readable status name.
+func (s ProjectLifecycle) Label() string {
+	switch s {
+	case ProjectLifecycleClosed:
+		return "Closed"
+	case ProjectLifecyclePaused:
+		return "Paused"
+	default:
+		return "Open"
+	}
+}
+
+// ToggleOpenClosed flips between open and closed (paused maps to closed on toggle).
+func (s ProjectLifecycle) ToggleOpenClosed() ProjectLifecycle {
+	if s == ProjectLifecycleClosed {
+		return ProjectLifecycleOpen
+	}
+	return ProjectLifecycleClosed
+}
+
+// Next cycles open → closed → open for keyboard toggling.
+func (s ProjectLifecycle) Next() ProjectLifecycle {
+	return s.ToggleOpenClosed()
+}
+
+// Prev cycles closed → open → closed.
+func (s ProjectLifecycle) Prev() ProjectLifecycle {
+	return s.ToggleOpenClosed()
+}

cmd/office/model/project_status_test.go

@@ -0,0 +1,26 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestProjectStatusFromInt(t *testing.T) {
+	if got := model.ProjectStatusFromAny(2); got != model.ProjectLifecycleClosed {
+		t.Fatalf("got %q", got)
+	}
+	if got := model.ProjectStatusFromAny(0); got != model.ProjectLifecycleOpen {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestProjectStatusToggle(t *testing.T) {
+	s := model.ProjectLifecycleOpen
+	if s.Next() != model.ProjectLifecycleClosed {
+		t.Fatal("expected closed")
+	}
+	if s.Next().Prev() != model.ProjectLifecycleOpen {
+		t.Fatal("expected open after toggle back")
+	}
+}

cmd/office/model/table_layout.go

@@ -0,0 +1,20 @@
+package model
+
+// TableFlexLayout describes a list table where every column stays visible and
+// one flex column absorbs leftover pane width.
+type TableFlexLayout struct {
+	FlexColumnKey string
+	MinFlexWidth  int
+}
+
+// TableFlexLayoutFor returns a flex layout policy for subjects that show all columns.
+func TableFlexLayoutFor(subject Subject) (TableFlexLayout, bool) {
+	switch subject {
+	case SubjectProjects:
+		return TableFlexLayout{FlexColumnKey: "title", MinFlexWidth: 12}, true
+	case SubjectUsers:
+		return TableFlexLayout{FlexColumnKey: "email", MinFlexWidth: 16}, true
+	default:
+		return TableFlexLayout{}, false
+	}
+}

cmd/office/model/table_layout_test.go

@@ -0,0 +1,18 @@
+package model
+
+import "testing"
+
+func TestTableFlexLayoutFor(t *testing.T) {
+	proj, ok := TableFlexLayoutFor(SubjectProjects)
+	if !ok || proj.FlexColumnKey != "title" || proj.MinFlexWidth != 12 {
+		t.Fatalf("projects layout=%+v ok=%v", proj, ok)
+	}
+	users, ok := TableFlexLayoutFor(SubjectUsers)
+	if !ok || users.FlexColumnKey != "email" {
+		t.Fatalf("users layout=%+v", users)
+	}
+	_, ok = TableFlexLayoutFor(SubjectTasks)
+	if ok {
+		t.Fatal("tasks should use scrolling layout")
+	}
+}

cmd/office/model/task_display.go

@@ -0,0 +1,188 @@
+package model
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// TaskStatusLabel returns a human-readable project/CRM task status.
+func TaskStatusLabel(v any) string {
+	if v == nil {
+		return ""
+	}
+	if s, ok := v.(string); ok {
+		if label := taskStatusFromString(s); label != "" {
+			return label
+		}
+	}
+	n := intRawVal(map[string]any{"status": v}, "status")
+	switch n {
+	case 0:
+		return "Not accepted"
+	case 1:
+		return "Open"
+	case 2:
+		return "Closed"
+	case 3:
+		return "Disabled"
+	case 4:
+		return "Unclassified"
+	case 5:
+		return "Not in milestone"
+	default:
+		if s := fmt.Sprint(v); s != "" && s != "<nil>" {
+			return s
+		}
+		return ""
+	}
+}
+
+func taskStatusFromString(s string) string {
+	switch strings.ToLower(strings.TrimSpace(s)) {
+	case "open":
+		return "Open"
+	case "closed":
+		return "Closed"
+	case "notaccept", "not accept", "not accepted":
+		return "Not accepted"
+	case "disable", "disabled":
+		return "Disabled"
+	case "unclassified":
+		return "Unclassified"
+	case "notinmilestone", "not in milestone":
+		return "Not in milestone"
+	default:
+		return ""
+	}
+}
+
+// FormatRelativeDeadline formats a deadline as "in 2 hours" or "3 days ago".
+func FormatRelativeDeadline(v any) string {
+	return FormatRelativeDeadlineAt(v, time.Now())
+}
+
+// FormatRelativeDeadlineAt is FormatRelativeDeadline with a fixed clock (for tests).
+func FormatRelativeDeadlineAt(v any, now time.Time) string {
+	t, ok := parseDeadlineTime(v)
+	if !ok {
+		return ""
+	}
+	return relativeTimePhrase(now, t)
+}
+
+func relativeTimePhrase(now, target time.Time) string {
+	d := target.Sub(now)
+	future := d >= 0
+	if !future {
+		d = -d
+	}
+	phrase := func(n int, unit string) string {
+		if n == 1 {
+			unit = strings.TrimSuffix(unit, "s")
+		}
+		if future {
+			return fmt.Sprintf("in %d %s", n, unit)
+		}
+		return fmt.Sprintf("%d %s ago", n, unit)
+	}
+	switch {
+	case d < time.Minute:
+		if future {
+			return "in 1 minute"
+		}
+		return "just now"
+	case d < time.Hour:
+		return phrase(int(d.Round(time.Minute)/time.Minute), "minutes")
+	case d < 24*time.Hour:
+		return phrase(int(d.Round(time.Hour)/time.Hour), "hours")
+	default:
+		return phrase(int(d.Round(24*time.Hour)/(24*time.Hour)), "days")
+	}
+}
+
+func parseDeadlineTime(v any) (time.Time, bool) {
+	if v == nil {
+		return time.Time{}, false
+	}
+	switch x := v.(type) {
+	case time.Time:
+		return x, true
+	case string:
+		s := strings.TrimSpace(x)
+		if s == "" {
+			return time.Time{}, false
+		}
+		formats := []string{
+			time.RFC3339Nano,
+			"2006-01-02T15:04:05.0000000-07:00",
+			"2006-01-02T15:04:05-07:00",
+			"2006-01-02T15:04:05",
+			"2006-01-02",
+		}
+		for _, layout := range formats {
+			if t, err := time.Parse(layout, s); err == nil {
+				return t, true
+			}
+		}
+		return time.Time{}, false
+	case float64:
+		return time.Unix(int64(x), 0), true
+	case int64:
+		return time.Unix(x, 0), true
+	case int:
+		return time.Unix(int64(x), 0), true
+	default:
+		return parseDeadlineTime(fmt.Sprint(v))
+	}
+}
+
+// TaskResponsibleLabel returns the assignee display name when present.
+func TaskResponsibleLabel(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	if name := personName(raw["responsible"]); name != "" {
+		return name
+	}
+	if list, ok := raw["responsibles"].([]any); ok {
+		names := make([]string, 0, len(list))
+		for _, entry := range list {
+			if name := personName(entry); name != "" {
+				names = append(names, name)
+			}
+		}
+		if len(names) > 0 {
+			return strings.Join(names, ", ")
+		}
+	}
+	if s := strRaw(raw, "responsible"); s != "" && !looksLikeID(s) {
+		return s
+	}
+	return ""
+}
+
+func personName(v any) string {
+	m, ok := v.(map[string]any)
+	if !ok {
+		return ""
+	}
+	if name := strRaw(m, "displayName"); name != "" {
+		if strings.EqualFold(name, "Profile has been removed") {
+			return ""
+		}
+		return name
+	}
+	first := strRaw(m, "firstName")
+	last := strRaw(m, "lastName")
+	return strings.TrimSpace(first + " " + last)
+}
+
+func looksLikeID(s string) bool {
+	if len(s) == 36 && strings.Count(s, "-") == 4 {
+		return true
+	}
+	_, err := strconv.Atoi(s)
+	return err == nil
+}

cmd/office/model/task_display_test.go

@@ -0,0 +1,49 @@
+package model
+
+import (
+	"testing"
+	"time"
+)
+
+func TestTaskStatusLabelFromInt(t *testing.T) {
+	if got := TaskStatusLabel(1); got != "Open" {
+		t.Fatalf("got %q", got)
+	}
+	if got := TaskStatusLabel(2); got != "Closed" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestFormatRelativeDeadlineFuture(t *testing.T) {
+	now := time.Date(2026, 6, 24, 12, 0, 0, 0, time.UTC)
+	deadline := now.Add(2 * time.Hour)
+	got := FormatRelativeDeadlineAt(deadline.Format(time.RFC3339), now)
+	if got != "in 2 hours" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestFormatRelativeDeadlineDays(t *testing.T) {
+	now := time.Date(2026, 6, 24, 12, 0, 0, 0, time.UTC)
+	deadline := now.Add(26 * time.Hour)
+	got := FormatRelativeDeadlineAt(deadline.Format(time.RFC3339), now)
+	if got != "in 1 day" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestBuildTaskColumnsOmitsSubtitle(t *testing.T) {
+	items := []Item{{
+		ID: "1", Title: "Fix bug", Kind: KindTask, Subtitle: "1",
+		Raw: map[string]any{"status": 1, "deadline": "2026-06-25T12:00:00Z"},
+	}}
+	cols := BuildColumns(SubjectTasks, items)
+	for _, c := range cols {
+		if c.Key == "subtitle" {
+			t.Fatalf("unexpected subtitle column")
+		}
+	}
+	if CellText(items[0], "status") != "Open" {
+		t.Fatalf("status not humanized")
+	}
+}

cmd/office/model/task_status.go

@@ -0,0 +1,87 @@
+package model
+
+// TaskLifecycle is the OnlyOffice project task status code.
+type TaskLifecycle int
+
+const (
+	TaskLifecycleNotAccept      TaskLifecycle = 0
+	TaskLifecycleOpen           TaskLifecycle = 1
+	TaskLifecycleClosed         TaskLifecycle = 2
+	TaskLifecycleDisabled       TaskLifecycle = 3
+	TaskLifecycleUnclassified   TaskLifecycle = 4
+	TaskLifecycleNotInMilestone TaskLifecycle = 5
+)
+
+var taskLifecycleCycle = []TaskLifecycle{
+	TaskLifecycleOpen,
+	TaskLifecycleClosed,
+	TaskLifecycleNotAccept,
+	TaskLifecycleDisabled,
+	TaskLifecycleUnclassified,
+	TaskLifecycleNotInMilestone,
+}
+
+// TaskStatusFromAny maps API status to a lifecycle value.
+func TaskStatusFromAny(v any) TaskLifecycle {
+	if v == nil {
+		return TaskLifecycleOpen
+	}
+	if s, ok := v.(string); ok {
+		switch taskStatusFromString(s) {
+		case "Open":
+			return TaskLifecycleOpen
+		case "Closed":
+			return TaskLifecycleClosed
+		case "Not accepted":
+			return TaskLifecycleNotAccept
+		case "Disabled":
+			return TaskLifecycleDisabled
+		case "Unclassified":
+			return TaskLifecycleUnclassified
+		case "Not in milestone":
+			return TaskLifecycleNotInMilestone
+		}
+	}
+	switch n := intRawVal(map[string]any{"status": v}, "status"); n {
+	case 0:
+		return TaskLifecycleNotAccept
+	case 2:
+		return TaskLifecycleClosed
+	case 3:
+		return TaskLifecycleDisabled
+	case 4:
+		return TaskLifecycleUnclassified
+	case 5:
+		return TaskLifecycleNotInMilestone
+	default:
+		return TaskLifecycleOpen
+	}
+}
+
+// Label returns a human-readable status name.
+func (s TaskLifecycle) Label() string {
+	return TaskStatusLabel(int(s))
+}
+
+// Next cycles task status for keyboard toggling.
+func (s TaskLifecycle) Next() TaskLifecycle {
+	return cycleTaskLifecycle(s, 1)
+}
+
+// Prev cycles task status backward.
+func (s TaskLifecycle) Prev() TaskLifecycle {
+	return cycleTaskLifecycle(s, -1)
+}
+
+func cycleTaskLifecycle(cur TaskLifecycle, delta int) TaskLifecycle {
+	idx := 0
+	for i, v := range taskLifecycleCycle {
+		if v == cur {
+			idx = i
+			break
+		}
+	}
+	n := len(taskLifecycleCycle)
+	idx = (idx + delta%n + n) % n
+	return taskLifecycleCycle[idx]
+}

cmd/office/model/user_acl.go

@@ -0,0 +1,93 @@
+package model
+
+import (
+	"fmt"
+	"strings"
+)
+
+// UserACLDef is one administrator permission row in the user editor.
+type UserACLDef struct {
+	Key   string
+	Label string
+}
+
+// UserACLDefs lists portal ACL rows (Full access + per-module grants).
+var UserACLDefs = []UserACLDef{
+	{Key: "full", Label: "Full access"},
+	{Key: "documents", Label: "Documents"},
+	{Key: "projects", Label: "Projects"},
+	{Key: "crm", Label: "CRM"},
+	{Key: "community", Label: "Community"},
+	{Key: "people", Label: "People"},
+	{Key: "sample", Label: "Sample"},
+	{Key: "mail", Label: "Mail"},
+}
+
+// UserACLState is the editable ACL snapshot for one user.
+type UserACLState struct {
+	FullAccess bool
+	Modules    map[string]bool
+}
+
+// UserACLFromRaw parses API user detail into ACL editor state.
+func UserACLFromRaw(raw map[string]any) UserACLState {
+	modules := make(map[string]bool, len(UserACLDefs))
+	for _, def := range UserACLDefs[1:] {
+		modules[def.Key] = false
+	}
+	if list, ok := raw["listAdminModules"].([]any); ok {
+		for _, v := range list {
+			key := strings.ToLower(strings.TrimSpace(fmt.Sprint(v)))
+			if key != "" {
+				modules[key] = true
+			}
+		}
+	}
+	full := boolRaw(raw, "isAdmin")
+	if full {
+		for k := range modules {
+			modules[k] = true
+		}
+	}
+	return UserACLState{FullAccess: full, Modules: modules}
+}
+
+// APIPayload converts editor state to OnlyOffice update fields.
+func (s UserACLState) APIPayload() (isAdmin bool, modules []string) {
+	if s.FullAccess {
+		return true, nil
+	}
+	for _, def := range UserACLDefs[1:] {
+		if s.Modules[def.Key] {
+			modules = append(modules, def.Key)
+		}
+	}
+	return false, modules
+}
+
+// ACLModuleOn reports whether a module row should show as granted.
+func (s UserACLState) ACLModuleOn(key string) bool {
+	if key == "full" {
+		return s.FullAccess
+	}
+	if s.FullAccess {
+		return true
+	}
+	return s.Modules[key]
+}
+
+func boolRaw(m map[string]any, key string) bool {
+	if m == nil {
+		return false
+	}
+	switch v := m[key].(type) {
+	case bool:
+		return v
+	case float64:
+		return v != 0
+	case int:
+		return v != 0
+	default:
+		return false
+	}
+}

cmd/office/model/user_acl_test.go

@@ -0,0 +1,43 @@
+package model
+
+import "testing"
+
+func TestUserACLFromRawFullAccess(t *testing.T) {
+	raw := map[string]any{
+		"isAdmin":          true,
+		"listAdminModules": []any{"crm"},
+	}
+	acl := UserACLFromRaw(raw)
+	if !acl.FullAccess {
+		t.Fatal("expected full access")
+	}
+	if !acl.ACLModuleOn("documents") {
+		t.Fatal("full access should show all modules on")
+	}
+}
+
+func TestUserACLAPIPayloadPartial(t *testing.T) {
+	acl := UserACLState{
+		FullAccess: false,
+		Modules: map[string]bool{
+			"documents": true,
+			"projects":  true,
+		},
+	}
+	isAdmin, mods := acl.APIPayload()
+	if isAdmin {
+		t.Fatal("expected partial admin")
+	}
+	if len(mods) != 2 {
+		t.Fatalf("mods=%v", mods)
+	}
+}
+
+func TestUserIsEnabled(t *testing.T) {
+	if !UserIsEnabled(map[string]any{"status": EmployeeStatusActive}) {
+		t.Fatal("active user should be enabled")
+	}
+	if UserIsEnabled(map[string]any{"status": EmployeeStatusTerminated}) {
+		t.Fatal("terminated user should be disabled")
+	}
+}

cmd/office/model/user_option.go

@@ -0,0 +1,7 @@
+package model
+
+// UserOption is one portal user for responsible pickers.
+type UserOption struct {
+	ID   string
+	Name string
+}

cmd/office/model/user_status.go

@@ -0,0 +1,116 @@
+package model
+
+import "time"
+
+const (
+	EmployeeStatusActive     = 1
+	EmployeeStatusTerminated = 2
+	EmployeeStatusPending    = 4
+)
+
+// UserIsEnabled reports whether the portal user account is active.
+func UserIsEnabled(raw map[string]any) bool {
+	if raw == nil {
+		return true
+	}
+	if t, ok := raw["terminated"].(bool); ok && t {
+		return false
+	}
+	switch intRawVal(raw, "status") {
+	case EmployeeStatusTerminated:
+		return false
+	case EmployeeStatusPending:
+		return false
+	default:
+		return true
+	}
+}
+
+// UserStatusLabel returns a short list-cell label for account state.
+func UserStatusLabel(raw map[string]any) string {
+	if !UserIsEnabled(raw) {
+		return "Disabled"
+	}
+	if intRawVal(raw, "status") == EmployeeStatusPending {
+		return "Pending"
+	}
+	return "Active"
+}
+
+// UserGroupsText formats group membership for the detail form.
+func UserGroupsText(raw map[string]any) string {
+	if raw == nil {
+		return "—"
+	}
+	list, ok := raw["groups"].([]any)
+	if !ok || len(list) == 0 {
+		return "—"
+	}
+	names := make([]string, 0, len(list))
+	for _, g := range list {
+		m, ok := g.(map[string]any)
+		if !ok {
+			continue
+		}
+		name := strRaw(m, "name")
+		if name == "" {
+			name = strRaw(m, "title")
+		}
+		if name != "" {
+			names = append(names, name)
+		}
+	}
+	if len(names) == 0 {
+		return "—"
+	}
+	return stringsJoin(names, ", ")
+}
+
+func stringsJoin(parts []string, sep string) string {
+	if len(parts) == 0 {
+		return ""
+	}
+	out := parts[0]
+	for i := 1; i < len(parts); i++ {
+		out += sep + parts[i]
+	}
+	return out
+}
+
+// FormatUserRegistration formats registration or work-from date for list cells.
+func FormatUserRegistration(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	for _, key := range []string{"registrationDate", "workFrom"} {
+		if s := formatUserDate(raw[key]); s != "" {
+			return s
+		}
+	}
+	return ""
+}
+
+func formatUserDate(v any) string {
+	switch t := v.(type) {
+	case string:
+		if t == "" {
+			return ""
+		}
+		if parsed, err := time.Parse("2006-01-02T15:04:05.0000000-07:00", t); err == nil {
+			return parsed.Format("2006-01-02")
+		}
+		if parsed, err := time.Parse(time.RFC3339, t); err == nil {
+			return parsed.Format("2006-01-02")
+		}
+		if len(t) >= 10 {
+			return t[:10]
+		}
+		return t
+	default:
+		s := strRaw(map[string]any{"v": v}, "v")
+		if s == "" || s == "<nil>" {
+			return ""
+		}
+		return formatUserDate(s)
+	}
+}

cmd/office/model/user_test.go

@@ -0,0 +1,58 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestNavUsersLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	var found int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Users" {
+			found = i
+			break
+		}
+	}
+	if found < 0 {
+		t.Fatal("Users node not found")
+	}
+	tree.SetCursor(found)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectUsers {
+		t.Fatalf("users spec=%v ok=%v", spec, ok)
+	}
+	if tree.IsExpandable(found) {
+		t.Fatal("Users should be a direct leaf, not a branch")
+	}
+}
+
+func TestBuildUserColumnsOmitsIDAndDisplayName(t *testing.T) {
+	items := []model.Item{{
+		ID: "1", Title: "jdoe", Kind: model.KindUser,
+		Raw: map[string]any{
+			"id": "1", "userName": "jdoe", "displayName": "John Doe",
+			"email": "j@example.com", "registrationDate": "2024-01-02T00:00:00",
+		},
+	}}
+	cols := model.BuildColumns(model.SubjectUsers, items)
+	want := []string{"_sel", "userName", "registration", "status", "email"}
+	if len(cols) != len(want) {
+		t.Fatalf("got %v", columnKeys(cols))
+	}
+	for i, key := range want {
+		if cols[i].Key != key {
+			t.Fatalf("col[%d]=%q want %q", i, cols[i].Key, key)
+		}
+	}
+}
+
+func columnKeys(cols []model.TableColumn) []string {
+	out := make([]string, len(cols))
+	for i, c := range cols {
+		out[i] = c.Key
+	}
+	return out
+}

cmd/office/preview/convert.go

@@ -0,0 +1,10 @@
+package preview
+
+import (
+	md "github.com/JohannesKaufmann/html-to-markdown/v2"
+)
+
+// HTMLToMarkdown converts Document Server HTML output to markdown for TUI preview.
+func HTMLToMarkdown(html string) (string, error) {
+	return md.ConvertString(html)
+}

cmd/office/preview/convert_test.go

@@ -0,0 +1,19 @@
+package preview_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func TestHTMLToMarkdown(t *testing.T) {
+	html := `<h1>Title</h1><p>Body text</p>`
+	md, err := preview.HTMLToMarkdown(html)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(md, "Title") || !strings.Contains(md, "Body text") {
+		t.Fatalf("conversion failed: %q", md)
+	}
+}

cmd/office/preview/entity.go

@@ -0,0 +1,214 @@
+package preview
+
+import (
+	"fmt"
+	"html"
+	"regexp"
+	"strings"
+)
+
+var htmlTagRe = regexp.MustCompile(`<[^>]+>`)
+
+// ContactMarkdown formats a CRM contact or company for preview.
+func ContactMarkdown(m map[string]any) string {
+	name := str(m, "displayName")
+	if name == "" {
+		name = strings.TrimSpace(str(m, "firstName") + " " + str(m, "lastName"))
+	}
+	kind := "Person"
+	if boolVal(m, "isCompany") {
+		kind = "Company"
+	}
+	var b strings.Builder
+	fmt.Fprintf(&b, "# %s\n\n", name)
+	fmt.Fprintf(&b, "**Type:** %s\n\n", kind)
+	if about := str(m, "about"); about != "" {
+		fmt.Fprintf(&b, "## About\n\n%s\n\n", about)
+	}
+	appendInfoList(&b, m)
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+// OpportunityMarkdown formats a CRM deal for preview.
+func OpportunityMarkdown(m map[string]any) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "# %s\n\n", str(m, "title"))
+	if v := m["bidValue"]; v != nil {
+		fmt.Fprintf(&b, "**Value:** %v %s\n\n", v, str(m, "bidCurrency"))
+	}
+	if d := str(m, "description"); d != "" {
+		fmt.Fprintf(&b, "## Description\n\n%s\n\n", d)
+	}
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+// MailMarkdown formats a mail message for terminal preview (HTML body is converted to markdown).
+func MailMarkdown(m map[string]any) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "# %s\n\n", str(m, "subject"))
+	fmt.Fprintf(&b, "**From:** %s\n\n", mailAddressLine(m, "from"))
+	if to := mailAddressLine(m, "to"); to != "" {
+		fmt.Fprintf(&b, "**To:** %s\n\n", to)
+	}
+	if cc := mailAddressLine(m, "cc"); cc != "" {
+		fmt.Fprintf(&b, "**Cc:** %s\n\n", cc)
+	}
+	if date := str(m, "date"); date != "" {
+		fmt.Fprintf(&b, "**Date:** %s\n\n", date)
+	}
+	if body := mailBodyMarkdown(m); body != "" {
+		fmt.Fprintf(&b, "---\n\n%s\n", body)
+	}
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+func mailAddressLine(m map[string]any, key string) string {
+	if v := str(m, key); v != "" {
+		return v
+	}
+	name := str(m, key+"Name")
+	addr := str(m, key+"Address")
+	switch {
+	case name != "" && addr != "":
+		return fmt.Sprintf("%s <%s>", name, addr)
+	case addr != "":
+		return addr
+	default:
+		return name
+	}
+}
+
+func mailBodyMarkdown(m map[string]any) string {
+	htmlBody := strings.TrimSpace(str(m, "htmlBody"))
+	plainBody := strings.TrimSpace(str(m, "body"))
+
+	for _, candidate := range []string{htmlBody, plainBody} {
+		if candidate == "" {
+			continue
+		}
+		if looksLikeHTML(candidate) {
+			if md, err := HTMLToMarkdown(candidate); err == nil {
+				if md = strings.TrimSpace(md); md != "" {
+					return md
+				}
+			}
+		}
+	}
+	if plainBody != "" {
+		return plainBody
+	}
+	if htmlBody != "" {
+		return stripHTML(htmlBody)
+	}
+	return ""
+}
+
+func looksLikeHTML(s string) bool {
+	return strings.Contains(s, "<") && strings.Contains(s, ">") && htmlTagRe.MatchString(s)
+}
+
+// EventMarkdown formats a calendar event for preview.
+func EventMarkdown(m map[string]any) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "# %s\n\n", str(m, "title"))
+	fmt.Fprintf(&b, "**Start:** %s\n\n", str(m, "start"))
+	fmt.Fprintf(&b, "**End:** %s\n\n", str(m, "end"))
+	if d := str(m, "description"); d != "" {
+		fmt.Fprintf(&b, "## Description\n\n%s\n\n", d)
+	}
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+// TaskMarkdown formats a project or CRM task for preview.
+func TaskMarkdown(m map[string]any) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "# %s\n\n", str(m, "title"))
+	if s := str(m, "status"); s != "" {
+		fmt.Fprintf(&b, "**Status:** %s\n\n", s)
+	}
+	if d := str(m, "deadline"); d != "" {
+		fmt.Fprintf(&b, "**Deadline:** %s\n\n", d)
+	}
+	if desc := str(m, "description"); desc != "" {
+		fmt.Fprintf(&b, "## Description\n\n%s\n\n", desc)
+	}
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+// ProjectMarkdown formats a project for preview.
+func ProjectMarkdown(m map[string]any) string {
+	var b strings.Builder
+	title := str(m, "title")
+	if title == "" {
+		title = str(m, "name")
+	}
+	fmt.Fprintf(&b, "# %s\n\n", title)
+	if s := str(m, "status"); s != "" {
+		fmt.Fprintf(&b, "**Status:** %s\n\n", s)
+	}
+	if d := str(m, "description"); d != "" {
+		fmt.Fprintf(&b, "## Description\n\n%s\n\n", d)
+	}
+	return strings.TrimSpace(b.String()) + "\n"
+}
+
+// EntityMarkdown picks a formatter based on item kind.
+func EntityMarkdown(kind string, m map[string]any) string {
+	switch kind {
+	case "contact", "person", "company":
+		return ContactMarkdown(m)
+	case "opportunity":
+		return OpportunityMarkdown(m)
+	case "mail":
+		return MailMarkdown(m)
+	case "event":
+		return EventMarkdown(m)
+	case "task", "crm_task":
+		return TaskMarkdown(m)
+	case "project":
+		return ProjectMarkdown(m)
+	default:
+		return mapToMarkdown(m)
+	}
+}
+
+func mapToMarkdown(m map[string]any) string {
+	var b strings.Builder
+	b.WriteString("# Details\n\n")
+	for k, v := range m {
+		fmt.Fprintf(&b, "- **%s:** %v\n", k, v)
+	}
+	return b.String()
+}
+
+func appendInfoList(b *strings.Builder, m map[string]any) {
+	if infos, ok := m["contactInfos"].([]any); ok && len(infos) > 0 {
+		b.WriteString("## Contact info\n\n")
+		for _, raw := range infos {
+			if row, ok := raw.(map[string]any); ok {
+				fmt.Fprintf(b, "- %s: %s\n", str(row, "infoType"), str(row, "data"))
+			}
+		}
+		b.WriteString("\n")
+	}
+}
+
+func stripHTML(s string) string {
+	s = htmlTagRe.ReplaceAllString(s, "")
+	return strings.TrimSpace(html.UnescapeString(s))
+}
+
+func str(m map[string]any, key string) string {
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	if m[key] == nil {
+		return ""
+	}
+	return fmt.Sprint(m[key])
+}
+
+func boolVal(m map[string]any, key string) bool {
+	v, ok := m[key].(bool)
+	return ok && v
+}

cmd/office/preview/entity_test.go

@@ -0,0 +1,58 @@
+package preview_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func TestMailMarkdownConvertsHTMLBody(t *testing.T) {
+	raw := map[string]any{
+		"subject":  "Weekly update",
+		"from":     `"Team" <team@example.com>`,
+		"htmlBody": `<p>Hello <strong>world</strong></p><p><a href="https://example.com">Link</a></p>`,
+	}
+	md := preview.MailMarkdown(raw)
+	if !strings.Contains(md, "Weekly update") {
+		t.Fatalf("missing subject:\n%s", md)
+	}
+	if !strings.Contains(md, "team@example.com") {
+		t.Fatalf("missing from:\n%s", md)
+	}
+	if strings.Contains(md, "<strong>") || strings.Contains(md, "<p>") {
+		t.Fatalf("expected HTML converted, got raw tags:\n%s", md)
+	}
+	if !strings.Contains(md, "world") {
+		t.Fatalf("missing body text:\n%s", md)
+	}
+}
+
+func TestMailMarkdownRendersWithColor(t *testing.T) {
+	md := preview.MailMarkdown(map[string]any{
+		"subject":  "Styled",
+		"from":     "a@b.com",
+		"htmlBody": `<h2>Heading</h2><p>Plain text</p>`,
+	})
+	out, err := preview.RenderMarkdown(md, 60)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if strings.TrimSpace(out) == "" {
+		t.Fatal("empty render output")
+	}
+	if !strings.Contains(out, "Heading") || !strings.Contains(out, "Plain text") {
+		t.Fatalf("missing rendered content:\n%s", out)
+	}
+}
+
+func TestMailMarkdownPlainBodyFallback(t *testing.T) {
+	md := preview.MailMarkdown(map[string]any{
+		"subject": "Hi",
+		"from":    "a@b.com",
+		"body":    "Just plain text",
+	})
+	if !strings.Contains(md, "Just plain text") {
+		t.Fatalf("missing plain body:\n%s", md)
+	}
+}

cmd/office/preview/preview_integration_test.go

@@ -0,0 +1,214 @@
+//go:build integration
+
+package preview_test
+
+import (
+	"context"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/internal/bootstrap"
+	"github.com/eslider/go-onlyoffice/cmd/office/fetch"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func skipWithoutLiveAPI(t *testing.T) {
+	t.Helper()
+	if os.Getenv("ONLYOFFICE_URL") == "" && os.Getenv("ONLYOFFICE_HOST") == "" {
+		t.Skip("ONLYOFFICE_URL not set")
+	}
+}
+
+func liveLoader(t *testing.T) (*fetch.Loader, context.Context) {
+	t.Helper()
+	skipWithoutLiveAPI(t)
+	client, err := bootstrap.NewClient(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &fetch.Loader{Client: client}, context.Background()
+}
+
+func TestIntegrationPreviewProjectFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjects})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no projects")
+	}
+	raw, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	md := preview.EntityMarkdown(string(model.KindProject), raw)
+	if md == "" {
+		t.Fatal("empty markdown")
+	}
+	if !strings.Contains(md, items[0].Title) {
+		t.Fatalf("markdown missing project title %q:\n%s", items[0].Title, md)
+	}
+	rendered, err := preview.RenderMarkdown(md, 80)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if rendered == "" {
+		t.Fatal("glamour produced empty output")
+	}
+}
+
+func TestIntegrationPreviewContactFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectContacts})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no contacts")
+	}
+	raw, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	md := preview.ContactMarkdown(raw)
+	if md == "" || !strings.Contains(md, "#") {
+		t.Fatalf("unexpected contact markdown: %q", md)
+	}
+}
+
+func TestIntegrationPreviewOpportunityFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectOpportunities})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no opportunities")
+	}
+	raw, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	md := preview.OpportunityMarkdown(raw)
+	if !strings.Contains(md, items[0].Title) {
+		t.Fatalf("markdown missing deal title:\n%s", md)
+	}
+}
+
+func TestIntegrationPreviewMailFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectMailInbox})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("inbox empty")
+	}
+	raw, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	md := preview.MailMarkdown(raw)
+	if md == "" || !strings.Contains(md, "From:") {
+		t.Fatalf("unexpected mail markdown:\n%s", md)
+	}
+}
+
+func TestIntegrationPreviewEventFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectCalendar})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no events in range")
+	}
+	md := preview.EventMarkdown(items[0].Raw)
+	if !strings.Contains(md, items[0].Title) {
+		t.Fatalf("markdown missing event title:\n%s", md)
+	}
+}
+
+func TestIntegrationPreviewTaskFromAPI(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectTasks})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no tasks")
+	}
+	raw, err := loader.Detail(ctx, items[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	md := preview.TaskMarkdown(raw)
+	if !strings.Contains(md, items[0].Title) {
+		t.Fatalf("markdown missing task title:\n%s", md)
+	}
+}
+
+func TestIntegrationPreviewFileFromAPI(t *testing.T) {
+	skipWithoutLiveAPI(t)
+	if os.Getenv("ONLYOFFICE_PROJECT_ID") == "" {
+		t.Skip("ONLYOFFICE_PROJECT_ID not set")
+	}
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjectFiles})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no project files")
+	}
+	md, err := loader.PreviewMarkdown(ctx, items[0])
+	if err != nil {
+		t.Fatalf("PreviewMarkdown: %v", err)
+	}
+	if md == "" {
+		t.Fatal("empty preview")
+	}
+	if !strings.Contains(md, items[0].Title) && !strings.Contains(md, "|") && !strings.Contains(md, "```") {
+		t.Fatalf("unexpected file preview for %q:\n%s", items[0].Title, md)
+	}
+}
+
+func TestIntegrationPreviewCSVFromDownloadedFile(t *testing.T) {
+	skipWithoutLiveAPI(t)
+	if os.Getenv("ONLYOFFICE_PROJECT_ID") == "" {
+		t.Skip("ONLYOFFICE_PROJECT_ID not set")
+	}
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjectFiles})
+	if err != nil {
+		t.Fatal(err)
+	}
+	var csvItem *model.Item
+	for i := range items {
+		if strings.HasSuffix(strings.ToLower(items[i].Title), ".csv") {
+			csvItem = &items[i]
+			break
+		}
+	}
+	if csvItem == nil {
+		t.Skip("no csv file in project documents")
+	}
+	var buf strings.Builder
+	n, err := loader.Client.DownloadFile(ctx, csvItem.ID, &buf)
+	if err != nil {
+		t.Fatalf("DownloadFile: %v", err)
+	}
+	if n == 0 {
+		t.Fatal("empty download")
+	}
+	md, err := preview.CSVToMarkdownTable([]byte(buf.String()))
+	if err != nil {
+		t.Fatalf("CSVToMarkdownTable: %v", err)
+	}
+	if !strings.Contains(md, "|") {
+		t.Fatalf("expected pipe table: %q", md)
+	}
+}

cmd/office/preview/render.go

@@ -0,0 +1,23 @@
+package preview
+
+import (
+	"github.com/charmbracelet/glamour"
+)
+
+// RenderMarkdown renders GitHub-flavoured markdown for terminal display.
+func RenderMarkdown(md string, width int) (string, error) {
+	if md == "" {
+		return "", nil
+	}
+	if width < 20 {
+		width = 20
+	}
+	r, err := glamour.NewTermRenderer(
+		glamour.WithAutoStyle(),
+		glamour.WithWordWrap(width),
+	)
+	if err != nil {
+		return "", err
+	}
+	return r.Render(md)
+}

cmd/office/preview/render_test.go

@@ -0,0 +1,31 @@
+package preview_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func TestRenderMarkdown(t *testing.T) {
+	out, err := preview.RenderMarkdown("# Hello\n\nWorld", 40)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out == "" {
+		t.Fatal("empty render output")
+	}
+	if !strings.Contains(strings.ToLower(out), "hello") {
+		t.Fatalf("expected rendered heading: %q", out)
+	}
+}
+
+func TestRenderMarkdownEmpty(t *testing.T) {
+	out, err := preview.RenderMarkdown("", 40)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if strings.TrimSpace(out) != "" {
+		t.Fatalf("expected empty, got %q", out)
+	}
+}

cmd/office/preview/spreadsheet.go

@@ -0,0 +1,65 @@
+package preview
+
+import (
+	"bytes"
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	xls "github.com/eslider/go-xls/v2"
+)
+
+// CSVToMarkdownTable parses CSV bytes into a GitHub pipe table markdown string.
+func CSVToMarkdownTable(data []byte) (string, error) {
+	tab, err := parseCSV(data)
+	if err != nil {
+		return "", err
+	}
+	var buf bytes.Buffer
+	if err := xls.WriteMarkdownTable(&buf, tab); err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(buf.String()) + "\n", nil
+}
+
+func parseCSV(data []byte) (xls.Table, error) {
+	r := csv.NewReader(bytes.NewReader(data))
+	r.TrimLeadingSpace = true
+	records, err := r.ReadAll()
+	if err != nil {
+		return xls.Table{}, err
+	}
+	if len(records) == 0 {
+		return xls.Table{}, fmt.Errorf("preview: empty csv")
+	}
+	return xls.Table{Columns: records[0], Rows: records[1:]}, nil
+}
+
+// JSONToMarkdown wraps JSON in a fenced code block for preview.
+func JSONToMarkdown(data []byte) (string, error) {
+	var v any
+	if err := json.Unmarshal(data, &v); err != nil {
+		return "", err
+	}
+	pretty, err := json.MarshalIndent(v, "", "  ")
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprintf("```json\n%s\n```\n", string(pretty)), nil
+}
+
+// FileBytesToMarkdown picks a preview format based on file extension.
+func FileBytesToMarkdown(name string, data []byte) (string, error) {
+	ext := strings.ToLower(name)
+	switch {
+	case strings.HasSuffix(ext, ".csv"):
+		return CSVToMarkdownTable(data)
+	case strings.HasSuffix(ext, ".json"):
+		return JSONToMarkdown(data)
+	case strings.HasSuffix(ext, ".md"), strings.HasSuffix(ext, ".txt"):
+		return string(data), nil
+	default:
+		return fmt.Sprintf("```\n(binary or unsupported preview for %s, %d bytes)\n```\n", name, len(data)), nil
+	}
+}

cmd/office/preview/spreadsheet_test.go

@@ -0,0 +1,32 @@
+package preview_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func TestCSVToMarkdownTable(t *testing.T) {
+	csv := "name,score\nAlice,10\nBob,20\n"
+	md, err := preview.CSVToMarkdownTable([]byte(csv))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(md, "name") || !strings.Contains(md, "Alice") {
+		t.Fatalf("table missing data: %q", md)
+	}
+	if !strings.Contains(md, "|") {
+		t.Fatalf("expected pipe table: %q", md)
+	}
+}
+
+func TestJSONToMarkdown(t *testing.T) {
+	md, err := preview.JSONToMarkdown([]byte(`{"a":1}`))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(md, "```") || !strings.Contains(md, `"a"`) {
+		t.Fatalf("expected fenced json: %q", md)
+	}
+}

cmd/office/ui/app_test.go

@@ -0,0 +1,45 @@
+package ui_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/eslider/go-onlyoffice/cmd/office/ui"
+)
+
+func TestKeyActionMenuDown(t *testing.T) {
+	if got := ui.KeyAction("j", model.FocusMenu); got != ui.ActionMoveDown {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestKeyActionShiftTabPrevPane(t *testing.T) {
+	if got := ui.KeyAction("shift+tab", model.FocusList); got != ui.ActionPrevPane {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestKeyActionTabOnPreviewDoesNotSwitchPane(t *testing.T) {
+	if got := ui.KeyAction("tab", model.FocusPreview); got != ui.ActionNone {
+		t.Fatalf("tab on preview should stay in pane, got %v", got)
+	}
+}
+
+func TestKeyActionSortAndColumns(t *testing.T) {
+	if got := ui.KeyAction("s", model.FocusList); got != ui.ActionSort {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestKeyActionFilter(t *testing.T) {
+	if got := ui.KeyAction("f", model.FocusList); got != ui.ActionFilter {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestLayoutWidths(t *testing.T) {
+	menu, list, preview := ui.LayoutWidthsLegacy(120)
+	if menu+list+preview != 120 {
+		t.Fatalf("widths exceed total: %d+%d+%d", menu, list, preview)
+	}
+}

cmd/office/ui/detail.go

@@ -0,0 +1,503 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+const detailContentRatio = 0.72
+
+type detailMode int
+
+const (
+	detailEmpty detailMode = iota
+	detailDocument
+	detailForm
+)
+
+type detailZone int
+
+const (
+	detailZoneContent detailZone = iota
+	detailZoneActions
+)
+
+// DetailPane is the right column: content top, CRUD actions bottom.
+type DetailPane struct {
+	mode      detailMode
+	item      model.Item
+	loadedID  string
+	actions   []model.ItemAction
+	actionIdx int
+	tabStop   int
+	zone      detailZone
+	focused   bool
+	width     int
+	height    int
+	form      EntityForm
+	docVP     viewport.Model
+	formVP    viewport.Model
+	docText   string
+	styles    detailStyles
+}
+
+type detailStyles struct {
+	sep      lipgloss.Style
+	action   lipgloss.Style
+	actionOn lipgloss.Style
+	actionDn lipgloss.Style
+	empty    lipgloss.Style
+}
+
+func newDetailPane() DetailPane {
+	d := DetailPane{
+		form:   newEntityForm(),
+		docVP:  viewport.New(40, 10),
+		formVP: viewport.New(40, 10),
+		styles: newDetailStyles(),
+	}
+	d.docVP.MouseWheelEnabled = true
+	d.formVP.MouseWheelEnabled = true
+	return d
+}
+
+func newDetailStyles() detailStyles {
+	btn := lipgloss.NewStyle().Padding(0, 1).MarginRight(1)
+	return detailStyles{
+		sep:      lipgloss.NewStyle().Foreground(lipgloss.Color("238")),
+		action:   btn.Foreground(lipgloss.Color("252")).Background(lipgloss.Color("236")),
+		actionOn: btn.Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("62")),
+		actionDn: btn.Foreground(lipgloss.Color("255")).Background(lipgloss.Color("52")),
+		empty:    lipgloss.NewStyle().Foreground(lipgloss.Color("241")),
+	}
+}
+
+func (d *DetailPane) Clear() {
+	d.mode = detailEmpty
+	d.item = model.Item{}
+	d.loadedID = ""
+	d.actions = nil
+	d.actionIdx = 0
+	d.tabStop = 0
+	d.docText = ""
+	d.form.Clear()
+	d.docVP.SetContent("")
+	d.formVP.SetContent("")
+}
+
+func (d *DetailPane) SetFocused(on bool) {
+	d.focused = on
+	d.applyTabStop(d.tabStop)
+}
+
+func (d *DetailPane) FocusFirstStop() {
+	d.tabStop = 0
+	d.applyTabStop(0)
+}
+
+func (d *DetailPane) maxTabStop() int {
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			if len(d.actions) == 0 {
+				return 0
+			}
+			return len(d.actions) - 1
+		}
+		fields := d.form.FieldCount()
+		if len(d.actions) == 0 {
+			if fields == 0 {
+				return 0
+			}
+			return fields - 1
+		}
+		return fields + len(d.actions) - 1
+	case detailDocument:
+		if len(d.actions) == 0 {
+			return 0
+		}
+		return len(d.actions)
+	default:
+		return 0
+	}
+}
+
+func (d *DetailPane) applyTabStop(stop int) {
+	if stop < 0 {
+		stop = 0
+	}
+	max := d.maxTabStop()
+	if stop > max {
+		stop = max
+	}
+	d.tabStop = stop
+
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			d.zone = detailZoneActions
+			d.actionIdx = stop
+			d.form.SetFocused(false)
+			return
+		}
+		fields := d.form.FieldCount()
+		if stop < fields {
+			d.zone = detailZoneContent
+			d.form.SetFieldIndex(stop)
+			d.form.SetFocused(d.focused)
+			return
+		}
+		d.zone = detailZoneActions
+		d.actionIdx = stop - fields
+		d.form.SetFocused(false)
+	case detailDocument:
+		if stop == 0 {
+			d.zone = detailZoneContent
+			d.form.SetFocused(false)
+			return
+		}
+		d.zone = detailZoneActions
+		d.actionIdx = stop - 1
+		d.form.SetFocused(false)
+	default:
+		d.zone = detailZoneContent
+		d.form.SetFocused(false)
+	}
+}
+
+// TabForward moves to the next field/button. It returns true when focus should leave the pane.
+func (d *DetailPane) TabForward() bool {
+	max := d.maxTabStop()
+	if d.tabStop < max {
+		d.applyTabStop(d.tabStop + 1)
+		return false
+	}
+	d.FocusFirstStop()
+	return true
+}
+
+// TabBackward moves to the previous field/button. It returns true when focus should leave the pane.
+func (d *DetailPane) TabBackward() bool {
+	if d.tabStop > 0 {
+		d.applyTabStop(d.tabStop - 1)
+		return false
+	}
+	d.applyTabStop(d.maxTabStop())
+	return true
+}
+
+func (d *DetailPane) SetSize(w, h int) {
+	if w < 8 {
+		w = 8
+	}
+	if h < 8 {
+		h = 8
+	}
+	d.width = w
+	d.height = h
+	contentH, _ := d.splitHeights()
+	d.form.SetSize(w, contentH)
+	d.docVP.Width = w
+	d.docVP.Height = contentH
+	d.formVP.Width = w
+	d.formVP.Height = contentH
+}
+
+func (d *DetailPane) splitHeights() (contentH, actionH int) {
+	actionH = int(float64(d.height) * (1 - detailContentRatio))
+	if actionH < 3 {
+		actionH = 3
+	}
+	if actionH > 6 {
+		actionH = 6
+	}
+	contentH = d.height - actionH - 1
+	if contentH < 4 {
+		contentH = 4
+	}
+	return contentH, actionH
+}
+
+func (d *DetailPane) LoadForm(item model.Item, fields model.FormFields) {
+	d.mode = detailForm
+	d.item = item
+	d.loadedID = item.ID
+	d.actions = model.ActionsFor(item.Kind)
+	d.actionIdx = 0
+	d.tabStop = 0
+	d.form.Load(item.Kind, item.ID, fields)
+	d.refreshFormViewport()
+	d.applyTabStop(0)
+	d.layoutContent()
+}
+
+func (d *DetailPane) LoadDocument(item model.Item, markdown string, renderWidth int) {
+	d.mode = detailDocument
+	d.item = item
+	d.loadedID = item.ID
+	d.actions = model.ActionsFor(item.Kind)
+	d.actionIdx = 0
+	d.tabStop = 0
+	d.form.Clear()
+	text, err := preview.RenderMarkdown(markdown, renderWidth)
+	if err != nil {
+		text = markdown
+	}
+	d.docText = text
+	d.docVP.SetContent(text)
+	d.docVP.GotoTop()
+	d.applyTabStop(0)
+	d.layoutContent()
+}
+
+func (d *DetailPane) layoutContent() {
+	contentH, _ := d.splitHeights()
+	d.form.SetSize(d.width, contentH)
+	d.docVP.Width = d.width
+	d.docVP.Height = contentH
+	d.formVP.Width = d.width
+	d.formVP.Height = contentH
+	d.refreshFormViewport()
+}
+
+func (d *DetailPane) refreshFormViewport() {
+	if d.mode != detailForm || !d.form.readOnly {
+		d.formVP.SetContent("")
+		return
+	}
+	d.formVP.SetContent(d.form.View())
+}
+
+func (d *DetailPane) LoadedID() string { return d.loadedID }
+
+func (d *DetailPane) Item() model.Item { return d.item }
+
+func (d *DetailPane) Zone() detailZone { return d.zone }
+
+func (d *DetailPane) FocusContent() {
+	d.applyTabStop(d.tabStop)
+	if d.zone == detailZoneContent && d.mode == detailForm {
+		d.form.SetFocused(d.focused)
+	}
+}
+
+func (d *DetailPane) FocusActions() {
+	max := d.maxTabStop()
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			d.applyTabStop(max)
+			return
+		}
+		if len(d.actions) > 0 {
+			d.applyTabStop(d.form.FieldCount())
+		}
+	case detailDocument:
+		if len(d.actions) > 0 {
+			d.applyTabStop(1)
+		}
+	}
+}
+
+// MoveTabStop moves between title, description, and action buttons without leaving the pane.
+func (d *DetailPane) MoveTabStop(delta int) {
+	if delta == 0 {
+		return
+	}
+	next := d.tabStop + delta
+	if next < 0 {
+		next = 0
+	}
+	max := d.maxTabStop()
+	if next > max {
+		next = max
+	}
+	d.applyTabStop(next)
+}
+
+func (d *DetailPane) MoveAction(delta int) {
+	if len(d.actions) == 0 {
+		return
+	}
+	d.actionIdx = clampInt(d.actionIdx+delta, 0, len(d.actions)-1)
+}
+
+func (d *DetailPane) SelectedAction() (model.ItemAction, bool) {
+	if d.actionIdx < 0 || d.actionIdx >= len(d.actions) {
+		return model.ItemAction{}, false
+	}
+	return d.actions[d.actionIdx], true
+}
+
+func (d DetailPane) IsDocumentContent() bool {
+	return d.mode == detailDocument
+}
+
+func (d DetailPane) isReadOnlyFormContent() bool {
+	return d.mode == detailForm && d.form.readOnly
+}
+
+func (d DetailPane) documentContentHeight() int {
+	contentH, _ := d.splitHeights()
+	return contentH
+}
+
+// ScrollDocument scrolls the read-only document viewport (mail, file preview).
+func (d *DetailPane) ScrollDocument(key string) bool {
+	if d.IsDocumentContent() {
+		return scrollViewport(&d.docVP, key)
+	}
+	if d.isReadOnlyFormContent() && d.zone == detailZoneContent {
+		return scrollViewport(&d.formVP, key)
+	}
+	return false
+}
+
+// ScrollDocumentMouse applies wheel events to scrollable preview content.
+func (d *DetailPane) ScrollDocumentMouse(msg tea.MouseMsg) tea.Cmd {
+	var vp *viewport.Model
+	switch {
+	case d.IsDocumentContent():
+		vp = &d.docVP
+	case d.isReadOnlyFormContent():
+		vp = &d.formVP
+	default:
+		return nil
+	}
+	if msg.Y >= d.documentContentHeight() {
+		return nil
+	}
+	if !vp.MouseWheelEnabled || msg.Action != tea.MouseActionPress {
+		return nil
+	}
+	switch msg.Button {
+	case tea.MouseButtonWheelUp, tea.MouseButtonWheelDown:
+	default:
+		return nil
+	}
+	var cmd tea.Cmd
+	*vp, cmd = vp.Update(msg)
+	return cmd
+}
+
+// DocumentYOffset exposes scroll position for tests.
+func (d DetailPane) DocumentYOffset() int {
+	return d.docVP.YOffset
+}
+
+func (d *DetailPane) Update(msg tea.Msg) tea.Cmd {
+	if !d.focused {
+		return nil
+	}
+	if d.zone == detailZoneContent {
+		switch d.mode {
+		case detailForm:
+			if d.form.readOnly {
+				if key, ok := msg.(tea.KeyMsg); ok {
+					if scrollViewport(&d.formVP, key.String()) {
+						return nil
+					}
+				}
+				var cmd tea.Cmd
+				d.formVP, cmd = d.formVP.Update(msg)
+				return cmd
+			}
+			return d.form.Update(msg)
+		case detailDocument:
+			if key, ok := msg.(tea.KeyMsg); ok {
+				if scrollViewport(&d.docVP, key.String()) {
+					return nil
+				}
+			}
+			var cmd tea.Cmd
+			d.docVP, cmd = d.docVP.Update(msg)
+			return cmd
+		}
+	}
+	return nil
+}
+
+func (d DetailPane) View() string {
+	if d.mode == detailEmpty {
+		return d.styles.empty.Render("Select a row to preview or edit.")
+	}
+	contentH, actionH := d.splitHeights()
+	var top string
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			top = ApplyVerticalScrollbar(
+				d.formVP.View(),
+				d.formVP.Width,
+				d.formVP.Height,
+				d.formVP.TotalLineCount(),
+				d.formVP.YOffset,
+			)
+		} else {
+			top = lipgloss.NewStyle().Width(d.width).Height(contentH).Render(d.form.View())
+		}
+	case detailDocument:
+		top = ApplyVerticalScrollbar(
+			d.docVP.View(),
+			d.docVP.Width,
+			d.docVP.Height,
+			d.docVP.TotalLineCount(),
+			d.docVP.YOffset,
+		)
+	default:
+		top = ""
+	}
+	sep := d.styles.sep.Width(d.width).Render(strings.Repeat("─", max(1, d.width)))
+	bottom := lipgloss.NewStyle().Width(d.width).Height(actionH).Render(d.renderActions())
+	return lipgloss.JoinVertical(lipgloss.Left, top, sep, bottom)
+}
+
+func (d DetailPane) renderActions() string {
+	if len(d.actions) == 0 {
+		hint := "No actions"
+		if d.focused && d.zone == detailZoneActions {
+			hint = lipgloss.NewStyle().Background(lipgloss.Color("238")).Render(" No actions ")
+		}
+		return d.styles.empty.Render(hint)
+	}
+	parts := make([]string, 0, len(d.actions))
+	for i, act := range d.actions {
+		style := d.styles.action
+		if d.focused && d.zone == detailZoneActions && i == d.actionIdx {
+			if act.Danger {
+				style = d.styles.actionDn
+			} else {
+				style = d.styles.actionOn
+			}
+		} else if act.Danger {
+			style = d.styles.actionDn
+		}
+		parts = append(parts, style.Render(act.Label))
+	}
+	line := strings.Join(parts, "")
+	if d.focused && d.zone == detailZoneActions {
+		line += d.styles.empty.Render("  Tab · Enter run")
+	}
+	return line
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func (d DetailPane) BlinkCmd() tea.Cmd {
+	return entityFormBlinkCmd()
+}
+
+// NewDetailPaneForTest exposes detail pane for tests.
+func NewDetailPaneForTest() DetailPane {
+	return newDetailPane()
+}

cmd/office/ui/detail_scroll_test.go

@@ -0,0 +1,60 @@
+package ui
+
+import (
+	"testing"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDetailDocumentScrollByKey(t *testing.T) {
+	d := newDetailPane()
+	d.SetSize(50, 20)
+	longBody := "# Mail\n\n"
+	for i := 0; i < 80; i++ {
+		longBody += "line\n"
+	}
+	d.LoadDocument(model.Item{ID: "1", Kind: model.KindMail, Title: "M"}, longBody, 40)
+	d.SetFocused(true)
+
+	if d.DocumentYOffset() != 0 {
+		t.Fatalf("expected top offset 0, got %d", d.DocumentYOffset())
+	}
+	if !d.ScrollDocument("down") {
+		t.Fatal("expected scroll down to succeed")
+	}
+	if d.DocumentYOffset() == 0 {
+		t.Fatal("expected offset after scroll down")
+	}
+	if !d.ScrollDocument("up") {
+		t.Fatal("expected scroll up to succeed")
+	}
+}
+
+func TestDetailDocumentMouseWheel(t *testing.T) {
+	d := newDetailPane()
+	d.SetSize(50, 20)
+	longBody := "# Mail\n\n"
+	for i := 0; i < 80; i++ {
+		longBody += "line\n"
+	}
+	d.LoadDocument(model.Item{ID: "1", Kind: model.KindMail, Title: "M"}, longBody, 40)
+
+	d.ScrollDocumentMouse(tea.MouseMsg{
+		X: 10, Y: 2, Button: tea.MouseButtonWheelDown, Action: tea.MouseActionPress,
+	})
+	if d.DocumentYOffset() == 0 {
+		t.Fatal("expected wheel down to scroll document")
+	}
+}
+
+func TestDetailPaneXRange(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 12, List: 72, Detail: 36,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	start, end := DetailPaneXRange(pw)
+	if start != 84 || end != 120 {
+		t.Fatalf("range=%d..%d want 84..120", start, end)
+	}
+}

cmd/office/ui/detail_tab_task_test.go

@@ -0,0 +1,41 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDetailTabOrderTaskForm(t *testing.T) {
+	d := newDetailPane()
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "9", Kind: model.KindTask, Title: "T"}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "Alpha", Secondary: "Beta",
+		HasTaskStatus: true, TaskStatus: model.TaskLifecycleOpen,
+		HasResponsible: true, ResponsibleID: "u1",
+		UserChoices: []model.UserOption{{ID: "u1", Name: "Alice"}},
+		ProjectTitle: "Proj", TimingSummary: "2026-01-01 → 2026-02-01",
+	})
+
+	stops := []entityField{
+		entityFieldPrimary, entityFieldSecondary, entityFieldStatus, entityFieldResponsible,
+	}
+	for i, want := range stops {
+		if d.form.field != want {
+			t.Fatalf("stop %d: field=%d want %d", i, d.form.field, want)
+		}
+		if d.TabForward() {
+			t.Fatalf("tab from stop %d should stay in pane", i)
+		}
+	}
+	if d.Zone() != detailZoneActions || d.actionIdx != 0 {
+		t.Fatalf("expected Save action, zone=%d idx=%d", d.Zone(), d.actionIdx)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from Save should stay")
+	}
+	if d.actionIdx != 1 {
+		t.Fatalf("expected Close action, idx=%d", d.actionIdx)
+	}
+}

cmd/office/ui/detail_tab_test.go

@@ -0,0 +1,65 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDetailTabOrderProjectForm(t *testing.T) {
+	d := newDetailPane()
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "1", Kind: model.KindProject, Title: "P"}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "Alpha", Secondary: "Beta", HasStatus: true,
+		Status: model.ProjectLifecycleOpen,
+	})
+
+	if d.tabStop != 0 || d.form.field != entityFieldPrimary {
+		t.Fatalf("start on title, tabStop=%d field=%d", d.tabStop, d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from title should stay in pane")
+	}
+	if d.form.field != entityFieldSecondary {
+		t.Fatalf("second stop should be description, field=%d", d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from description should stay in pane")
+	}
+	if d.form.field != entityFieldStatus {
+		t.Fatalf("third stop should be status, field=%d", d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from status should stay in pane")
+	}
+	if d.Zone() != detailZoneActions || d.actionIdx != 0 {
+		t.Fatalf("fourth stop should be Save, zone=%d idx=%d", d.Zone(), d.actionIdx)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from Save should stay in pane")
+	}
+	if d.actionIdx != 1 {
+		t.Fatalf("fifth stop should be Delete, idx=%d", d.actionIdx)
+	}
+	if !d.TabForward() {
+		t.Fatal("tab from Delete should leave pane")
+	}
+	if d.tabStop != 0 {
+		t.Fatalf("after leaving pane tab order resets, tabStop=%d", d.tabStop)
+	}
+}
+
+func TestDetailShiftTabFromTitleLeavesPane(t *testing.T) {
+	d := newDetailPane()
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "1", Kind: model.KindProject}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+	})
+	if !d.TabBackward() {
+		t.Fatal("shift+tab from title should leave pane")
+	}
+	if d.tabStop != d.maxTabStop() {
+		t.Fatalf("should park on last stop, tabStop=%d max=%d", d.tabStop, d.maxTabStop())
+	}
+}

cmd/office/ui/detail_test.go

@@ -0,0 +1,49 @@
+package ui_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/eslider/go-onlyoffice/cmd/office/ui"
+)
+
+func TestEntityFormLoadAndView(t *testing.T) {
+	form := ui.NewEntityFormForTest()
+	form.SetSize(40, 16)
+	form.Load(model.KindTask, "42", model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "Fix bug", Secondary: "Details here",
+	})
+	view := form.View()
+	if !strings.Contains(view, "Fix bug") {
+		t.Fatal("view missing title")
+	}
+}
+
+func TestDetailPaneFormAndActions(t *testing.T) {
+	d := ui.NewDetailPaneForTest()
+	d.SetSize(50, 20)
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "1", Kind: model.KindTask, Title: "T"}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "Hello", Secondary: "World",
+	})
+	view := d.View()
+	if !strings.Contains(view, "Save") || !strings.Contains(view, "Close") {
+		t.Fatal("expected Save and Close action buttons")
+	}
+	if !strings.Contains(view, "Hello") {
+		t.Fatal("expected form content")
+	}
+}
+
+func TestDetailPaneDocumentMode(t *testing.T) {
+	d := ui.NewDetailPaneForTest()
+	d.SetSize(50, 20)
+	d.LoadDocument(model.Item{ID: "9", Kind: model.KindFile, Title: "a.txt"}, "# Doc\n\nbody", 40)
+	view := d.View()
+	if !strings.Contains(view, "Download") {
+		t.Fatal("expected Download action")
+	}
+}

cmd/office/ui/entityform.go

@@ -0,0 +1,558 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	"github.com/charmbracelet/bubbles/textarea"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+type entityField int
+
+const (
+	entityFieldPrimary entityField = iota
+	entityFieldSecondary
+	entityFieldStatus
+	entityFieldResponsible
+)
+
+// EntityForm is the top section of the detail pane for editable entities.
+type EntityForm struct {
+	active          bool
+	kind            model.Kind
+	itemID          string
+	primaryLabel    string
+	secondaryLabel  string
+	readOnly        bool
+	hasStatus       bool
+	status          model.ProjectLifecycle
+	hasTaskStatus   bool
+	taskStatus      model.TaskLifecycle
+	hasResponsible  bool
+	responsibleID   string
+	userChoices     []model.UserOption
+	responsibleIdx  int
+	projectTitle    string
+	timingSummary   string
+	hasUserEdit     bool
+	userEnabled     bool
+	userACL         model.UserACLState
+	groupsText      string
+	userFieldIdx    int
+	primary         textinput.Model
+	secondary       textarea.Model
+	password        textinput.Model
+	field           entityField
+	focused         bool
+	dirty           bool
+	width           int
+	height          int
+	styles          entityFormStyles
+}
+
+type entityFormStyles struct {
+	header   lipgloss.Style
+	label    lipgloss.Style
+	labelAct lipgloss.Style
+	meta     lipgloss.Style
+}
+
+func newEntityFormStyles() entityFormStyles {
+	return entityFormStyles{
+		header:   lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("252")),
+		label:    lipgloss.NewStyle().Foreground(lipgloss.Color("241")),
+		labelAct: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("62")),
+		meta:     lipgloss.NewStyle().Foreground(lipgloss.Color("245")),
+	}
+}
+
+func newEntityForm() EntityForm {
+	primary := textinput.New()
+	primary.CharLimit = 512
+	primary.Prompt = "> "
+	secondary := textarea.New()
+	secondary.ShowLineNumbers = false
+	secondary.CharLimit = 8000
+	secondary.Prompt = "> "
+	password := textinput.New()
+	password.CharLimit = 128
+	password.EchoMode = textinput.EchoPassword
+	password.EchoCharacter = '•'
+	password.Prompt = "> "
+	return EntityForm{
+		primary:   primary,
+		secondary: secondary,
+		password:  password,
+		field:     entityFieldPrimary,
+		styles:    newEntityFormStyles(),
+	}
+}
+
+func (f *EntityForm) FieldCount() int {
+	if f.hasUserEdit {
+		return f.userFieldCount()
+	}
+	n := 2
+	if f.hasStatus || f.hasTaskStatus {
+		n++
+	}
+	if f.hasResponsible {
+		n++
+	}
+	return n
+}
+
+func (f *EntityForm) FormFields() model.FormFields {
+	return model.FormFields{
+		PrimaryLabel:   f.primaryLabel,
+		SecondaryLabel: f.secondaryLabel,
+		Primary:        f.primary.Value(),
+		Secondary:      f.secondary.Value(),
+		ReadOnly:       f.readOnly,
+		HasStatus:      f.hasStatus,
+		Status:         f.status,
+		HasTaskStatus:  f.hasTaskStatus,
+		TaskStatus:     f.taskStatus,
+		HasResponsible: f.hasResponsible,
+		ResponsibleID:  f.responsibleID,
+		UserChoices:    f.userChoices,
+		ProjectTitle:   f.projectTitle,
+		TimingSummary:  f.timingSummary,
+		HasUserEdit:    f.hasUserEdit,
+		UserEnabled:    f.userEnabled,
+		UserACL:        f.userACL,
+		GroupsText:     f.groupsText,
+		UserPassword:   f.password.Value(),
+	}
+}
+
+func (f *EntityForm) Active() bool { return f.active }
+
+func (f *EntityForm) ItemID() string { return f.itemID }
+
+func (f *EntityForm) Primary() string { return f.primary.Value() }
+
+func (f *EntityForm) Secondary() string { return f.secondary.Value() }
+
+func (f *EntityForm) MarkClean() { f.dirty = false }
+
+func (f *EntityForm) Load(kind model.Kind, itemID string, fields model.FormFields) {
+	f.active = true
+	f.kind = kind
+	f.itemID = itemID
+	f.primaryLabel = fields.PrimaryLabel
+	f.secondaryLabel = fields.SecondaryLabel
+	f.readOnly = fields.ReadOnly
+	f.hasStatus = fields.HasStatus
+	f.status = fields.Status
+	f.hasTaskStatus = fields.HasTaskStatus
+	f.taskStatus = fields.TaskStatus
+	f.hasResponsible = fields.HasResponsible
+	f.userChoices = fields.UserChoices
+	f.projectTitle = fields.ProjectTitle
+	f.timingSummary = fields.TimingSummary
+	f.responsibleID = fields.ResponsibleID
+	f.responsibleIdx = indexUserChoice(fields.UserChoices, fields.ResponsibleID)
+	f.hasUserEdit = fields.HasUserEdit
+	f.userEnabled = fields.UserEnabled
+	f.userACL = copyUserACLState(fields.UserACL)
+	f.groupsText = fields.GroupsText
+	f.userFieldIdx = 0
+	f.primary.SetValue(fields.Primary)
+	f.secondary.SetValue(fields.Secondary)
+	f.password.SetValue("")
+	f.dirty = false
+	if f.hasUserEdit {
+		f.userFieldIdx = 0
+	} else {
+		f.field = entityFieldPrimary
+	}
+	f.applyFocus()
+	f.layoutFields()
+}
+
+func indexUserChoice(choices []model.UserOption, id string) int {
+	for i, c := range choices {
+		if c.ID == id {
+			return i
+		}
+	}
+	return 0
+}
+
+func (f *EntityForm) Clear() {
+	f.active = false
+	f.itemID = ""
+	f.hasStatus = false
+	f.hasTaskStatus = false
+	f.hasResponsible = false
+	f.status = model.ProjectLifecycleOpen
+	f.taskStatus = model.TaskLifecycleOpen
+	f.responsibleID = ""
+	f.userChoices = nil
+	f.responsibleIdx = 0
+	f.projectTitle = ""
+	f.timingSummary = ""
+	f.hasUserEdit = false
+	f.userEnabled = false
+	f.userACL = model.UserACLState{}
+	f.groupsText = ""
+	f.userFieldIdx = 0
+	f.primary.SetValue("")
+	f.secondary.SetValue("")
+	f.password.SetValue("")
+	f.dirty = false
+	f.primary.Blur()
+	f.secondary.Blur()
+	f.password.Blur()
+}
+
+func (f *EntityForm) SetFocused(on bool) {
+	f.focused = on && f.active
+	if f.focused {
+		f.applyFocus()
+	} else {
+		f.primary.Blur()
+		f.secondary.Blur()
+		f.password.Blur()
+	}
+}
+
+func (f *EntityForm) SetSize(w, h int) {
+	if w < 12 {
+		w = 12
+	}
+	if h < 6 {
+		h = 6
+	}
+	f.width = w
+	f.height = h
+	f.layoutFields()
+}
+
+func (f *EntityForm) layoutFields() {
+	if f.width == 0 {
+		return
+	}
+	inner := f.width - 2
+	if inner < 8 {
+		inner = 8
+	}
+	f.primary.Width = inner
+	f.password.Width = inner
+	if f.hasUserEdit {
+		return
+	}
+	metaLines := 0
+	if f.projectTitle != "" {
+		metaLines++
+	}
+	if f.timingSummary != "" {
+		metaLines++
+	}
+	if metaLines > 0 {
+		metaLines++ // blank line before meta
+	}
+	extra := 6 + metaLines
+	if f.hasStatus || f.hasTaskStatus {
+		extra += 2
+	}
+	if f.hasResponsible {
+		extra += 2
+	}
+	secH := f.height - extra
+	if secH < 3 {
+		secH = 3
+	}
+	f.secondary.SetWidth(inner)
+	f.secondary.SetHeight(secH)
+}
+
+func (f *EntityForm) lastField() entityField {
+	if f.hasResponsible {
+		return entityFieldResponsible
+	}
+	if f.hasStatus || f.hasTaskStatus {
+		return entityFieldStatus
+	}
+	return entityFieldSecondary
+}
+
+func (f *EntityForm) FocusNext() {
+	if f.field < f.lastField() {
+		f.field++
+	}
+	f.applyFocus()
+}
+
+func (f *EntityForm) FocusPrev() {
+	if f.field > entityFieldPrimary {
+		f.field--
+	}
+	f.applyFocus()
+}
+
+func (f *EntityForm) SetFieldIndex(i int) {
+	if f.hasUserEdit {
+		f.setUserFieldIndex(i)
+		return
+	}
+	switch i {
+	case 0:
+		f.field = entityFieldPrimary
+	case 1:
+		f.field = entityFieldSecondary
+	case 2:
+		if f.hasStatus || f.hasTaskStatus {
+			f.field = entityFieldStatus
+		} else if f.hasResponsible {
+			f.field = entityFieldResponsible
+		}
+	case 3:
+		if f.hasResponsible && (f.hasStatus || f.hasTaskStatus) {
+			f.field = entityFieldResponsible
+		}
+	default:
+		return
+	}
+	f.applyFocus()
+}
+
+func (f *EntityForm) cycleStatus(delta int) {
+	if f.readOnly {
+		return
+	}
+	if f.hasTaskStatus {
+		if delta > 0 {
+			f.taskStatus = f.taskStatus.Next()
+		} else {
+			f.taskStatus = f.taskStatus.Prev()
+		}
+		f.dirty = true
+		return
+	}
+	if !f.hasStatus {
+		return
+	}
+	if delta > 0 {
+		f.status = f.status.Next()
+	} else {
+		f.status = f.status.Prev()
+	}
+	f.dirty = true
+}
+
+func (f *EntityForm) cycleResponsible(delta int) {
+	if !f.hasResponsible || f.readOnly || len(f.userChoices) == 0 {
+		return
+	}
+	n := len(f.userChoices)
+	f.responsibleIdx = (f.responsibleIdx + delta%n + n) % n
+	f.responsibleID = f.userChoices[f.responsibleIdx].ID
+	f.dirty = true
+}
+
+func (f *EntityForm) responsibleLabel() string {
+	if f.responsibleID == "" {
+		return "—"
+	}
+	for _, c := range f.userChoices {
+		if c.ID == f.responsibleID {
+			if c.Name != "" {
+				return c.Name
+			}
+			return c.ID
+		}
+	}
+	return f.responsibleID
+}
+
+func (f *EntityForm) applyFocus() {
+	if f.hasUserEdit {
+		f.applyUserFocus()
+		return
+	}
+	if f.readOnly {
+		f.primary.Blur()
+		f.secondary.Blur()
+		return
+	}
+	switch f.field {
+	case entityFieldPrimary:
+		f.primary.Focus()
+		f.secondary.Blur()
+	case entityFieldSecondary:
+		f.primary.Blur()
+		f.secondary.Focus()
+	default:
+		f.primary.Blur()
+		f.secondary.Blur()
+	}
+}
+
+func (f *EntityForm) Update(msg tea.Msg) tea.Cmd {
+	if !f.active || !f.focused || f.readOnly {
+		return nil
+	}
+	if f.hasUserEdit {
+		return f.updateUserForm(msg)
+	}
+	if key, ok := msg.(tea.KeyMsg); ok {
+		switch f.field {
+		case entityFieldStatus:
+			switch key.String() {
+			case "left", "h":
+				f.cycleStatus(-1)
+				return nil
+			case "right", "l":
+				f.cycleStatus(1)
+				return nil
+			case " ":
+				f.cycleStatus(1)
+				return nil
+			}
+		case entityFieldResponsible:
+			switch key.String() {
+			case "left", "h":
+				f.cycleResponsible(-1)
+				return nil
+			case "right", "l":
+				f.cycleResponsible(1)
+				return nil
+			case " ":
+				f.cycleResponsible(1)
+				return nil
+			}
+		}
+	}
+	var cmd tea.Cmd
+	switch f.field {
+	case entityFieldPrimary:
+		f.primary, cmd = f.primary.Update(msg)
+	case entityFieldSecondary:
+		f.secondary, cmd = f.secondary.Update(msg)
+	default:
+		return nil
+	}
+	if _, ok := msg.(tea.KeyMsg); ok {
+		f.dirty = true
+	}
+	return cmd
+}
+
+func (f EntityForm) View() string {
+	if !f.active {
+		return ""
+	}
+	if f.hasUserEdit {
+		return f.userView()
+	}
+	header := f.styles.header.Render(model.KindHeading(f.kind, f.itemID))
+	pLabel := f.styles.label.Render(f.primaryLabel)
+	if f.focused && f.field == entityFieldPrimary && !f.readOnly {
+		pLabel = f.styles.labelAct.Render(f.primaryLabel)
+	}
+	sLabel := f.styles.label.Render(f.secondaryLabel)
+	if f.focused && f.field == entityFieldSecondary && !f.readOnly {
+		sLabel = f.styles.labelAct.Render(f.secondaryLabel)
+	}
+	statusBlock := f.renderStatusBlock()
+	responsibleBlock := f.renderResponsibleBlock()
+	metaBlock := f.renderMetaBlock()
+	ro := ""
+	if f.readOnly {
+		ro = lipgloss.NewStyle().Foreground(lipgloss.Color("241")).Render(" (read-only)") + "\n"
+	}
+	parts := []string{
+		header + ro,
+		pLabel,
+		f.primary.View(),
+		"",
+		sLabel,
+		f.secondary.View(),
+	}
+	if statusBlock != "" {
+		parts = append(parts, statusBlock)
+	}
+	if responsibleBlock != "" {
+		parts = append(parts, responsibleBlock)
+	}
+	if metaBlock != "" {
+		parts = append(parts, metaBlock)
+	}
+	return strings.Join(parts, "\n")
+}
+
+func (f EntityForm) renderStatusBlock() string {
+	if !f.hasStatus && !f.hasTaskStatus {
+		return ""
+	}
+	stLabel := f.styles.label.Render("Status")
+	if f.focused && f.field == entityFieldStatus && !f.readOnly {
+		stLabel = f.styles.labelAct.Render("Status")
+	}
+	label := f.status.Label()
+	valStyle := f.styles.label
+	if f.hasTaskStatus {
+		label = f.taskStatus.Label()
+		if f.taskStatus == model.TaskLifecycleClosed {
+			valStyle = valStyle.Foreground(lipgloss.Color("245"))
+		} else if f.taskStatus == model.TaskLifecycleOpen {
+			valStyle = valStyle.Foreground(lipgloss.Color("42"))
+		}
+	} else if f.status == model.ProjectLifecycleClosed {
+		valStyle = valStyle.Foreground(lipgloss.Color("245"))
+	} else {
+		valStyle = valStyle.Foreground(lipgloss.Color("42"))
+	}
+	hint := ""
+	if f.focused && f.field == entityFieldStatus && !f.readOnly {
+		hint = f.styles.label.Render("  ←/→ cycle")
+	}
+	return strings.Join([]string{"", stLabel, valStyle.Render(label) + hint}, "\n")
+}
+
+func (f EntityForm) renderResponsibleBlock() string {
+	if !f.hasResponsible {
+		return ""
+	}
+	rLabel := f.styles.label.Render("Responsible")
+	if f.focused && f.field == entityFieldResponsible && !f.readOnly {
+		rLabel = f.styles.labelAct.Render("Responsible")
+	}
+	hint := ""
+	if f.focused && f.field == entityFieldResponsible && !f.readOnly && len(f.userChoices) > 0 {
+		hint = f.styles.label.Render("  ←/→ choose")
+	}
+	return strings.Join([]string{
+		"",
+		rLabel,
+		f.styles.meta.Render(f.responsibleLabel()) + hint,
+	}, "\n")
+}
+
+func (f EntityForm) renderMetaBlock() string {
+	if f.projectTitle == "" && f.timingSummary == "" {
+		return ""
+	}
+	lines := []string{""}
+	if f.projectTitle != "" {
+		lines = append(lines, f.styles.label.Render("Project"), f.styles.meta.Render(f.projectTitle))
+	}
+	if f.timingSummary != "" {
+		lines = append(lines, f.styles.label.Render("Timing"), f.styles.meta.Render(f.timingSummary))
+	}
+	return strings.Join(lines, "\n")
+}
+
+func entityFormBlinkCmd() tea.Cmd {
+	return tea.Batch(textinput.Blink, textarea.Blink)
+}
+
+// NewEntityFormForTest exposes a form for unit tests.
+func NewEntityFormForTest() EntityForm {
+	return newEntityForm()
+}

cmd/office/ui/entityform_user.go

@@ -0,0 +1,161 @@
+package ui
+
+import (
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func (f *EntityForm) userFieldCount() int {
+	return 2 + len(model.UserACLDefs)
+}
+
+func (f *EntityForm) userView() string {
+	header := f.styles.header.Render(model.KindHeading(f.kind, f.itemID))
+	lines := []string{
+		header,
+		f.styles.label.Render("ID"),
+		f.styles.meta.Render(f.itemID),
+		"",
+		f.renderUserEnabledRow(),
+		"",
+		f.renderUserPasswordRow(),
+	}
+	for i, def := range model.UserACLDefs {
+		lines = append(lines, f.renderUserACLRow(i, def.Label, f.userACL.ACLModuleOn(def.Key)))
+	}
+	lines = append(lines, "", f.styles.label.Render("Groups"), f.styles.meta.Render(f.groupsText))
+	return strings.Join(lines, "\n")
+}
+
+func (f *EntityForm) renderUserEnabledRow() string {
+	label := f.styles.label.Render("Account")
+	if f.focused && f.userFieldIdx == 0 {
+		label = f.styles.labelAct.Render("Account")
+	}
+	val := "Disabled"
+	style := lipgloss.NewStyle().Foreground(lipgloss.Color("245"))
+	if f.userEnabled {
+		val = "Enabled"
+		style = lipgloss.NewStyle().Foreground(lipgloss.Color("42"))
+	}
+	hint := ""
+	if f.focused && f.userFieldIdx == 0 {
+		hint = f.styles.label.Render("  space toggle")
+	}
+	return strings.Join([]string{label, style.Render(val) + hint}, "\n")
+}
+
+func (f *EntityForm) renderUserPasswordRow() string {
+	label := f.styles.label.Render("Password")
+	if f.focused && f.userFieldIdx == 1 {
+		label = f.styles.labelAct.Render("Password")
+	}
+	return strings.Join([]string{label, f.password.View(), f.styles.meta.Render("(leave blank to keep)")}, "\n")
+}
+
+func (f *EntityForm) renderUserACLRow(idx int, title string, on bool) string {
+	fieldIdx := idx + 2
+	label := f.styles.label.Render(title)
+	if f.focused && f.userFieldIdx == fieldIdx {
+		label = f.styles.labelAct.Render(title)
+	}
+	val := "Off"
+	style := lipgloss.NewStyle().Foreground(lipgloss.Color("245"))
+	if on {
+		val = "On"
+		style = lipgloss.NewStyle().Foreground(lipgloss.Color("42"))
+	}
+	hint := ""
+	if f.focused && f.userFieldIdx == fieldIdx {
+		hint = f.styles.label.Render("  space toggle")
+	}
+	return strings.Join([]string{label, style.Render(val) + hint}, "\n")
+}
+
+func (f *EntityForm) setUserFieldIndex(i int) {
+	if i < 0 {
+		i = 0
+	}
+	max := f.userFieldCount() - 1
+	if i > max {
+		i = max
+	}
+	f.userFieldIdx = i
+	f.applyFocus()
+}
+
+func (f *EntityForm) toggleUserEnabled() {
+	f.userEnabled = !f.userEnabled
+	f.dirty = true
+}
+
+func (f *EntityForm) toggleUserACL(idx int) {
+	if idx < 0 || idx >= len(model.UserACLDefs) {
+		return
+	}
+	if idx == 0 {
+		f.userACL.FullAccess = !f.userACL.FullAccess
+		if f.userACL.FullAccess {
+			for k := range f.userACL.Modules {
+				f.userACL.Modules[k] = true
+			}
+		}
+		f.dirty = true
+		return
+	}
+	def := model.UserACLDefs[idx]
+	if f.userACL.FullAccess {
+		f.userACL.FullAccess = false
+		for k := range f.userACL.Modules {
+			f.userACL.Modules[k] = true
+		}
+	}
+	f.userACL.Modules[def.Key] = !f.userACL.Modules[def.Key]
+	f.dirty = true
+}
+
+func (f *EntityForm) updateUserForm(msg tea.Msg) tea.Cmd {
+	if key, ok := msg.(tea.KeyMsg); ok {
+		switch f.userFieldIdx {
+		case 0:
+			switch key.String() {
+			case " ", "left", "right", "l", "h":
+				f.toggleUserEnabled()
+				return nil
+			}
+		case 1:
+			var cmd tea.Cmd
+			f.password, cmd = f.password.Update(msg)
+			f.dirty = true
+			return cmd
+		default:
+			switch key.String() {
+			case " ", "left", "right", "l", "h":
+				f.toggleUserACL(f.userFieldIdx - 2)
+				return nil
+			}
+		}
+	}
+	return nil
+}
+
+func (f *EntityForm) applyUserFocus() {
+	f.primary.Blur()
+	f.secondary.Blur()
+	if f.userFieldIdx == 1 {
+		f.password.Focus()
+	} else {
+		f.password.Blur()
+	}
+}
+
+func copyUserACLState(s model.UserACLState) model.UserACLState {
+	modules := make(map[string]bool, len(s.Modules))
+	for k, v := range s.Modules {
+		modules[k] = v
+	}
+	return model.UserACLState{FullAccess: s.FullAccess, Modules: modules}
+}

cmd/office/ui/entityform_user_test.go

@@ -0,0 +1,61 @@
+package ui
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestUserFormViewShowsIDAndACL(t *testing.T) {
+	f := NewEntityFormForTest()
+	f.SetSize(60, 30)
+	f.Load(model.KindUser, "42", model.FormFields{
+		HasUserEdit: true,
+		UserEnabled: true,
+		UserACL: model.UserACLState{
+			FullAccess: false,
+			Modules: map[string]bool{
+				"documents": true,
+			},
+		},
+		GroupsText: "Admins, Devs",
+	})
+	view := f.View()
+	for _, want := range []string{"User 42", "ID", "42", "Account", "Password", "Full access", "Documents", "Groups", "Admins"} {
+		if !strings.Contains(view, want) {
+			t.Fatalf("view missing %q:\n%s", want, view)
+		}
+	}
+}
+
+func TestUserFormFieldCount(t *testing.T) {
+	f := NewEntityFormForTest()
+	f.Load(model.KindUser, "1", model.FormFields{HasUserEdit: true, UserACL: model.UserACLFromRaw(nil)})
+	if got := f.FieldCount(); got != 2+len(model.UserACLDefs) {
+		t.Fatalf("field count=%d want %d", got, len(model.UserACLDefs)+2)
+	}
+}
+
+func TestLayoutUserTableEmailAbsorbsWidth(t *testing.T) {
+	cols := model.BuildColumns(model.SubjectUsers, nil)
+	flex, ok := model.TableFlexLayoutFor(model.SubjectUsers)
+	if !ok {
+		t.Fatal("expected flex layout")
+	}
+	lay := layoutFlexTable(cols, 100, flex.FlexColumnKey, flex.MinFlexWidth)
+	sum := 0
+	emailW := 0
+	for _, i := range lay.indices {
+		sum += lay.widths[i]
+		if cols[i].Key == "email" {
+			emailW = lay.widths[i]
+		}
+	}
+	if sum != 100 {
+		t.Fatalf("sum=%d want 100", sum)
+	}
+	if emailW < 30 {
+		t.Fatalf("email width=%d should absorb extra space", emailW)
+	}
+}

cmd/office/ui/filter.go

@@ -0,0 +1,99 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// FilterSearch is the right-pane query input for nav/list filtering.
+type FilterSearch struct {
+	input   textinput.Model
+	width   int
+	height  int
+	focused bool
+	styles  filterSearchStyles
+}
+
+type filterSearchStyles struct {
+	title lipgloss.Style
+	hint  lipgloss.Style
+}
+
+func newFilterSearch() FilterSearch {
+	in := textinput.New()
+	in.Prompt = "/ "
+	in.Placeholder = "Filter list…"
+	in.CharLimit = 256
+	return FilterSearch{
+		input: in,
+		styles: filterSearchStyles{
+			title: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("252")),
+			hint:  lipgloss.NewStyle().Foreground(lipgloss.Color("241")),
+		},
+	}
+}
+
+func (f *FilterSearch) Query() string { return f.input.Value() }
+
+func (f *FilterSearch) SetFocused(on bool) {
+	f.focused = on
+	if on {
+		f.input.Focus()
+	} else {
+		f.input.Blur()
+	}
+}
+
+func (f *FilterSearch) SetSize(w, h int) {
+	if w < 12 {
+		w = 12
+	}
+	if h < 6 {
+		h = 6
+	}
+	f.width = w
+	f.height = h
+	inner := w - 2
+	if inner < 8 {
+		inner = 8
+	}
+	f.input.Width = inner
+}
+
+func (f *FilterSearch) Clear() {
+	f.input.SetValue("")
+}
+
+func (f *FilterSearch) Update(msg tea.Msg) tea.Cmd {
+	if !f.focused {
+		return nil
+	}
+	var cmd tea.Cmd
+	f.input, cmd = f.input.Update(msg)
+	return cmd
+}
+
+func (f *FilterSearch) SetInputWidth(inner int) {
+	if inner < 8 {
+		inner = 8
+	}
+	f.input.Width = inner
+}
+
+func (f *FilterSearch) CompactView() string {
+	return f.input.View()
+}
+
+func (f FilterSearch) View() string {
+	title := f.styles.title.Render("Filter")
+	body := lipgloss.NewStyle().Width(f.width).Render(f.input.View())
+	hint := f.styles.hint.Render("Filters left nav and center table · Esc clear · f focus")
+	return strings.Join([]string{title, "", body, "", hint}, "\n")
+}
+
+func filterSearchBlinkCmd() tea.Cmd {
+	return textinput.Blink
+}

cmd/office/ui/keys.go

@@ -0,0 +1,93 @@
+package ui
+
+import "github.com/eslider/go-onlyoffice/cmd/office/model"
+
+// Action is a keyboard command outcome for the TUI.
+type Action int
+
+const (
+	ActionNone Action = iota
+	ActionMoveUp
+	ActionMoveDown
+	ActionMoveLeft
+	ActionMoveRight
+	ActionSort
+	ActionToggleSelect
+	ActionFocusDetail
+	ActionToggleMenuPane
+	ActionToggleListPane
+	ActionToggleDetailPane
+	ActionFilter
+	ActionNextPane
+	ActionPrevPane
+	ActionRefresh
+	ActionQuit
+)
+
+// KeyAction maps a key string and focused pane to an action.
+func KeyAction(key string, pane model.FocusPane) Action {
+	switch key {
+	case "q", "ctrl+c":
+		return ActionQuit
+	case "tab":
+		if pane != model.FocusPreview {
+			return ActionNextPane
+		}
+	case "shift+tab", "backtab":
+		if pane != model.FocusPreview {
+			return ActionPrevPane
+		}
+	case "r":
+		return ActionRefresh
+	case "f", "/":
+		if pane == model.FocusList {
+			return ActionFilter
+		}
+		if pane == model.FocusMenu {
+			return ActionFilter
+		}
+	case "up", "k":
+		return ActionMoveUp
+	case "down", "j":
+		return ActionMoveDown
+	case "s":
+		if pane == model.FocusList {
+			return ActionSort
+		}
+	case "left", "h":
+		return ActionMoveLeft
+	case "right", "l":
+		return ActionMoveRight
+	case " ":
+		if pane == model.FocusList {
+			return ActionToggleSelect
+		}
+	case "v", "p":
+		if pane == model.FocusList {
+			return ActionFocusDetail
+		}
+	case "alt+1":
+		return ActionToggleMenuPane
+	case "alt+2":
+		return ActionToggleListPane
+	case "alt+3":
+		return ActionToggleDetailPane
+	}
+	return ActionNone
+}
+
+// LayoutWidthsLegacy is kept for tests that expect the old signature.
+func LayoutWidthsLegacy(total int) (menu, list, preview int) {
+	pw := LayoutWidths(total, defaultPaneVisibility())
+	return pw.Menu, pw.List, pw.Detail
+}
+
+// ResolveMoveUp returns the action for upward navigation keys.
+func ResolveMoveUp(pane model.FocusPane) Action {
+	switch pane {
+	case model.FocusMenu, model.FocusList, model.FocusPreview:
+		return ActionMoveUp
+	default:
+		return ActionNone
+	}
+}

cmd/office/ui/layout.go

@@ -0,0 +1,145 @@
+package ui
+
+import "github.com/eslider/go-onlyoffice/cmd/office/model"
+
+// PaneVisibility controls which columns are shown.
+type PaneVisibility struct {
+	Menu, List, Detail bool
+}
+
+// PaneWidths is outer lipgloss width per column (sums to terminal width).
+type PaneWidths struct {
+	Menu, List, Detail int
+	Visibility         PaneVisibility
+}
+
+func defaultPaneVisibility() PaneVisibility {
+	return PaneVisibility{Menu: true, List: true, Detail: true}
+}
+
+const (
+	defaultMenuShare  = 10
+	defaultListShare  = 60
+	defaultDetailShare = 30
+)
+
+// LayoutWidths splits total terminal width across visible panes (default 10% / 60% / 30%).
+func LayoutWidths(total int, vis PaneVisibility) PaneWidths {
+	if total < 1 {
+		total = 80
+	}
+	v := vis
+	if countVisible(v) == 0 {
+		v = defaultPaneVisibility()
+	}
+	shareSum := 0
+	if v.Menu {
+		shareSum += defaultMenuShare
+	}
+	if v.List {
+		shareSum += defaultListShare
+	}
+	if v.Detail {
+		shareSum += defaultDetailShare
+	}
+	assign := func(visible bool, share int) int {
+		if !visible || shareSum == 0 {
+			return 0
+		}
+		return total * share / shareSum
+	}
+	out := PaneWidths{Visibility: v}
+	out.Menu = assign(v.Menu, defaultMenuShare)
+	out.List = assign(v.List, defaultListShare)
+	out.Detail = assign(v.Detail, defaultDetailShare)
+	fixPaneWidthSum(&out, total)
+	return out
+}
+
+// DetailPaneXRange returns the [start, end) column span of the detail pane.
+func DetailPaneXRange(pw PaneWidths) (start, end int) {
+	if !pw.Visibility.Detail {
+		return 0, 0
+	}
+	if pw.Visibility.Menu {
+		start += pw.Menu
+	}
+	if pw.Visibility.List {
+		start += pw.List
+	}
+	end = start + pw.Detail
+	return start, end
+}
+
+func countVisible(v PaneVisibility) int {
+	n := 0
+	if v.Menu {
+		n++
+	}
+	if v.List {
+		n++
+	}
+	if v.Detail {
+		n++
+	}
+	return n
+}
+
+// NextVisibleFocus cycles focus forward, skipping hidden panes.
+func NextVisibleFocus(cur model.FocusPane, vis PaneVisibility) model.FocusPane {
+	order := []model.FocusPane{model.FocusMenu, model.FocusList, model.FocusPreview}
+	start := 0
+	for i, p := range order {
+		if p == cur {
+			start = i
+			break
+		}
+	}
+	for step := 1; step <= len(order); step++ {
+		p := order[(start+step)%len(order)]
+		if paneVisible(p, vis) {
+			return p
+		}
+	}
+	return cur
+}
+
+// PrevVisibleFocus cycles focus backward, skipping hidden panes.
+func PrevVisibleFocus(cur model.FocusPane, vis PaneVisibility) model.FocusPane {
+	order := []model.FocusPane{model.FocusMenu, model.FocusList, model.FocusPreview}
+	start := 0
+	for i, p := range order {
+		if p == cur {
+			start = i
+			break
+		}
+	}
+	for step := 1; step <= len(order); step++ {
+		p := order[(start-step+len(order))%len(order)]
+		if paneVisible(p, vis) {
+			return p
+		}
+	}
+	return cur
+}
+
+func paneVisible(p model.FocusPane, vis PaneVisibility) bool {
+	switch p {
+	case model.FocusMenu:
+		return vis.Menu
+	case model.FocusList:
+		return vis.List
+	default:
+		return vis.Detail
+	}
+}
+
+func firstVisibleFocus(vis PaneVisibility) model.FocusPane {
+	if vis.Menu {
+		return model.FocusMenu
+	}
+	if vis.List {
+		return model.FocusList
+	}
+	return model.FocusPreview
+}

cmd/office/ui/layout_resize.go

@@ -0,0 +1,203 @@
+package ui
+
+import (
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+const (
+	minPaneOuterWidth = 14
+	resizeHitSlop     = 1
+)
+
+type paneResizeState struct {
+	active   bool
+	divider  int
+	anchorX  int
+	anchorPW PaneWidths
+}
+
+// FitPaneWidths scales stored pane widths to fill total width for visible panes.
+func FitPaneWidths(total int, vis PaneVisibility, sizes PaneWidths) PaneWidths {
+	if total < 1 {
+		total = 80
+	}
+	out := PaneWidths{Visibility: vis}
+	if countVisible(vis) == 0 {
+		return LayoutWidths(total, vis)
+	}
+	sum := 0
+	if vis.Menu {
+		sum += sizes.Menu
+	}
+	if vis.List {
+		sum += sizes.List
+	}
+	if vis.Detail {
+		sum += sizes.Detail
+	}
+	if sum <= 0 {
+		return LayoutWidths(total, vis)
+	}
+	assign := func(visible bool, stored int) int {
+		if !visible {
+			return 0
+		}
+		return stored * total / sum
+	}
+	out.Menu = assign(vis.Menu, sizes.Menu)
+	out.List = assign(vis.List, sizes.List)
+	out.Detail = assign(vis.Detail, sizes.Detail)
+	fixPaneWidthSum(&out, total)
+	return out
+}
+
+func fixPaneWidthSum(pw *PaneWidths, total int) {
+	if pw == nil || total < 1 {
+		return
+	}
+	type slot struct {
+		visible bool
+		width   *int
+	}
+	slots := []slot{
+		{pw.Visibility.Menu, &pw.Menu},
+		{pw.Visibility.List, &pw.List},
+		{pw.Visibility.Detail, &pw.Detail},
+	}
+	sum := 0
+	var last *int
+	for _, s := range slots {
+		if !s.visible {
+			continue
+		}
+		sum += *s.width
+		last = s.width
+	}
+	if last == nil {
+		return
+	}
+	*last += total - sum
+	if *last < minPaneOuterWidth {
+		*last = minPaneOuterWidth
+	}
+}
+
+// DividerPositions returns x coordinates of vertical pane separators.
+func DividerPositions(pw PaneWidths) []int {
+	var out []int
+	x := 0
+	if pw.Visibility.Menu {
+		x += pw.Menu
+		if pw.Visibility.List || pw.Visibility.Detail {
+			out = append(out, x)
+		}
+	}
+	if pw.Visibility.List {
+		x += pw.List
+		if pw.Visibility.Detail {
+			out = append(out, x)
+		}
+	}
+	return out
+}
+
+// DividerAt returns the divider index under x, or -1.
+func DividerAt(x int, pw PaneWidths) int {
+	for i, pos := range DividerPositions(pw) {
+		if x >= pos-resizeHitSlop && x <= pos+resizeHitSlop {
+			return i
+		}
+	}
+	return -1
+}
+
+// DragPaneDivider adjusts adjacent pane widths by deltaX pixels.
+func DragPaneDivider(pw PaneWidths, divider, deltaX int) (PaneWidths, bool) {
+	if deltaX == 0 {
+		return pw, false
+	}
+	changed := false
+	switch divider {
+	case 0:
+		if pw.Visibility.Menu && pw.Visibility.List {
+			if resizePair(&pw.Menu, &pw.List, deltaX) {
+				changed = true
+			}
+		} else if pw.Visibility.Menu && pw.Visibility.Detail {
+			if resizePair(&pw.Menu, &pw.Detail, deltaX) {
+				changed = true
+			}
+		}
+	case 1:
+		if pw.Visibility.List && pw.Visibility.Detail {
+			if resizePair(&pw.List, &pw.Detail, deltaX) {
+				changed = true
+			}
+		}
+	}
+	return pw, changed
+}
+
+func resizePair(left, right *int, delta int) bool {
+	if left == nil || right == nil {
+		return false
+	}
+	newLeft := *left + delta
+	newRight := *right - delta
+	if newLeft < minPaneOuterWidth || newRight < minPaneOuterWidth {
+		return false
+	}
+	*left = newLeft
+	*right = newRight
+	return true
+}
+
+func (m Model) paneResizeMaxY() int {
+	return m.paneHeight() + 1
+}
+
+func (m *Model) handlePaneResizeMouse(msg tea.MouseMsg) bool {
+	if msg.Y >= m.paneResizeMaxY() {
+		if m.resize.active && msg.Action == tea.MouseActionRelease {
+			m.resize.active = false
+			return true
+		}
+		return false
+	}
+
+	pw := m.paneLayout()
+	switch msg.Action {
+	case tea.MouseActionPress:
+		if msg.Button != tea.MouseButtonLeft {
+			return false
+		}
+		if div := DividerAt(msg.X, pw); div >= 0 {
+			m.paneSizes = pw
+			m.customPaneLayout = true
+			m.resize = paneResizeState{
+				active:   true,
+				divider:  div,
+				anchorX:  msg.X,
+				anchorPW: pw,
+			}
+			return true
+		}
+	case tea.MouseActionRelease:
+		if m.resize.active {
+			m.resize.active = false
+			return true
+		}
+	case tea.MouseActionMotion:
+		if m.resize.active {
+			delta := msg.X - m.resize.anchorX
+			next, ok := DragPaneDivider(m.resize.anchorPW, m.resize.divider, delta)
+			if ok {
+				m.paneSizes = next
+				m.layoutViewports()
+				m.syncAllContent()
+			}
+			return true
+		}
+	}
+	return m.resize.active
+}

cmd/office/ui/layout_resize_test.go

@@ -0,0 +1,41 @@
+package ui
+
+import "testing"
+
+func TestDividerAtBetweenMenuAndList(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 30, List: 50, Detail: 40,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	if got := DividerAt(30, pw); got != 0 {
+		t.Fatalf("divider at 30=%d want 0", got)
+	}
+	if got := DividerAt(80, pw); got != 1 {
+		t.Fatalf("divider at 80=%d want 1", got)
+	}
+}
+
+func TestDragPaneDividerRespectsMinimum(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 40, List: 40, Detail: 40,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	next, ok := DragPaneDivider(pw, 0, -30)
+	if ok {
+		t.Fatalf("expected resize blocked by minimum, got %+v", next)
+	}
+	next, ok = DragPaneDivider(pw, 0, 5)
+	if !ok || next.Menu != 45 || next.List != 35 {
+		t.Fatalf("resize failed: ok=%v %+v", ok, next)
+	}
+}
+
+func TestFitPaneWidthsScalesToTotal(t *testing.T) {
+	vis := PaneVisibility{Menu: true, List: true, Detail: true}
+	sizes := PaneWidths{Menu: 20, List: 30, Detail: 50, Visibility: vis}
+	out := FitPaneWidths(120, vis, sizes)
+	sum := out.Menu + out.List + out.Detail
+	if sum != 120 {
+		t.Fatalf("sum=%d want 120", sum)
+	}
+}

cmd/office/ui/layout_test.go

@@ -0,0 +1,138 @@
+package ui
+
+import (
+	"regexp"
+	"strings"
+	"testing"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
+	"github.com/muesli/termenv"
+)
+
+func TestLayoutWidthsAllVisibleUsesFullWidth(t *testing.T) {
+	vis := PaneVisibility{Menu: true, List: true, Detail: true}
+	pw := LayoutWidths(120, vis)
+	sum := pw.Menu + pw.List + pw.Detail
+	if sum != 120 {
+		t.Fatalf("sum=%d want 120", sum)
+	}
+	if pw.Menu != 12 || pw.List != 72 || pw.Detail != 36 {
+		t.Fatalf("menu=%d list=%d detail=%d want 12/72/36 (10/60/30)", pw.Menu, pw.List, pw.Detail)
+	}
+}
+
+func TestLayoutWidthsSinglePane(t *testing.T) {
+	pw := LayoutWidths(100, PaneVisibility{Menu: false, List: true, Detail: false})
+	if pw.List != 100 {
+		t.Fatalf("list=%d want 100", pw.List)
+	}
+	if pw.Menu != 0 || pw.Detail != 0 {
+		t.Fatalf("unexpected widths: %+v", pw)
+	}
+}
+
+func TestLayoutWidthsTwoPanes(t *testing.T) {
+	pw := LayoutWidths(80, PaneVisibility{Menu: true, List: false, Detail: true})
+	if pw.Menu+pw.Detail != 80 {
+		t.Fatalf("sum=%d want 80", pw.Menu+pw.Detail)
+	}
+	if pw.Menu != 20 || pw.Detail != 60 {
+		t.Fatalf("menu=%d detail=%d want 20/60 (10/30 of pair)", pw.Menu, pw.Detail)
+	}
+}
+
+func TestDetailPaneXRangeSkipsHidden(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 20, List: 60, Detail: 0,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: false},
+	}
+	start, end := DetailPaneXRange(pw)
+	if start != 0 || end != 0 {
+		t.Fatalf("hidden detail should have empty range, got %d..%d", start, end)
+	}
+}
+
+func TestNextVisibleFocusSkipsHidden(t *testing.T) {
+	vis := PaneVisibility{Menu: false, List: true, Detail: true}
+	if got := NextVisibleFocus(model.FocusList, vis); got != model.FocusPreview {
+		t.Fatalf("got %v", got)
+	}
+	if got := NextVisibleFocus(model.FocusPreview, vis); got != model.FocusList {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestPrevVisibleFocusSkipsHidden(t *testing.T) {
+	vis := PaneVisibility{Menu: true, List: false, Detail: true}
+	if got := PrevVisibleFocus(model.FocusPreview, vis); got != model.FocusMenu {
+		t.Fatalf("got %v", got)
+	}
+}
+
+func TestThreePaneRenderedWidthMatchesTerminal(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	total := 120
+	pw := LayoutWidths(total, PaneVisibility{Menu: true, List: true, Detail: true})
+	h := 12
+	menu := paneStyle(false).Width(paneLipglossWidth(pw.Menu)).Height(h).Render(strings.Repeat("m", paneContentWidth(pw.Menu)))
+	inner := paneContentWidth(pw.List)
+	tbl := newDataTable()
+	tbl.SetSize(inner, h-listToolbarHeight)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectProjects}, []model.Item{
+		{ID: "1", Title: "Alpha", Kind: model.KindProject, Raw: map[string]any{"status": 0}},
+	})
+	toolbar := newListToolbar()
+	toolbar.SetWidth(inner)
+	body := lipgloss.JoinVertical(lipgloss.Left, toolbar.View(ListToolbarMeta{Subject: "projects", Count: 1}), tbl.View())
+	list := paneStyle(true).Width(paneLipglossWidth(pw.List)).Height(h).Render(body)
+	detail := paneStyle(false).Width(paneLipglossWidth(pw.Detail)).Height(h).Render(strings.Repeat("d", paneContentWidth(pw.Detail)))
+	full := lipgloss.JoinHorizontal(lipgloss.Top, menu, list, detail)
+	re := regexp.MustCompile(`\x1b\[[0-9;]*m`)
+	top := strings.Split(full, "\n")[0]
+	got := runewidth.StringWidth(re.ReplaceAllString(top, ""))
+	if got != total {
+		t.Fatalf("top border width=%d want %d", got, total)
+	}
+	for _, line := range strings.Split(tbl.View(), "\n") {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		w := runewidth.StringWidth(re.ReplaceAllString(line, ""))
+		if w > inner+1 {
+			t.Fatalf("table line width=%d want <=%d", w, inner+1)
+		}
+	}
+}
+
+func TestPaneContentWidth(t *testing.T) {
+	if got := paneContentWidth(72); got != 68 {
+		t.Fatalf("content width=%d want 68", got)
+	}
+	if got := paneLipglossWidth(72); got != 70 {
+		t.Fatalf("lipgloss width=%d want 70", got)
+	}
+}
+
+func TestLayoutWidthsLegacyHelper(t *testing.T) {
+	menu, list, preview := LayoutWidthsLegacy(120)
+	if menu+list+preview != 120 {
+		t.Fatalf("widths exceed total")
+	}
+}
+
+func TestKeyActionTogglePanes(t *testing.T) {
+	if got := KeyAction("alt+1", model.FocusList); got != ActionToggleMenuPane {
+		t.Fatalf("got %v", got)
+	}
+	if got := KeyAction("alt+2", model.FocusMenu); got != ActionToggleListPane {
+		t.Fatalf("got %v", got)
+	}
+	if got := KeyAction("alt+3", model.FocusList); got != ActionToggleDetailPane {
+		t.Fatalf("got %v", got)
+	}
+}

cmd/office/ui/list_toolbar.go

@@ -0,0 +1,352 @@
+package ui
+
+import (
+	"fmt"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
+)
+
+const listToolbarHeight = 2
+
+type listZone int
+
+const (
+	listZoneTable listZone = iota
+	listZoneFilter
+	listZoneActions
+)
+
+// ListToolbarMeta is the navigation/sort summary shown above the filter row.
+type ListToolbarMeta struct {
+	Subject     string
+	Count       int
+	SortLabel   string
+	LoadingMore bool
+	SaveEnabled bool
+	DeleteEnabled bool
+}
+
+// ListToolbar is the filter & navigation bar above the center table.
+type ListToolbar struct {
+	filter      FilterSearch
+	width       int
+	zone        listZone
+	actionIdx   int
+	actionRects []toolbarBtnRect
+	btnX0       int
+	styles      listToolbarStyles
+}
+
+type toolbarBtnRect struct {
+	action model.ActionID
+	x0, x1 int
+}
+
+type listToolbarStyles struct {
+	title   lipgloss.Style
+	btn     lipgloss.Style
+	btnOn   lipgloss.Style
+	btnOff  lipgloss.Style
+	btnAct  lipgloss.Style
+	btnDn   lipgloss.Style
+}
+
+func newListToolbar() ListToolbar {
+	return ListToolbar{
+		filter: newFilterSearch(),
+		styles: listToolbarStyles{
+			title:  lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("252")),
+			btn:    lipgloss.NewStyle().Padding(0, 1),
+			btnOn:  lipgloss.NewStyle().Padding(0, 1).Foreground(lipgloss.Color("255")),
+			btnOff: lipgloss.NewStyle().Padding(0, 1).Foreground(lipgloss.Color("238")),
+			btnAct: lipgloss.NewStyle().Padding(0, 1).Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("62")),
+			btnDn:  lipgloss.NewStyle().Padding(0, 1).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("52")),
+		},
+	}
+}
+
+func (b *ListToolbar) SetWidth(w int) {
+	if w < 12 {
+		w = 12
+	}
+	b.width = w
+	inner := w - 8
+	if inner < 12 {
+		inner = 12
+	}
+	b.filter.SetInputWidth(inner)
+}
+
+func (b *ListToolbar) Zone() listZone { return b.zone }
+
+func (b *ListToolbar) SetZone(z listZone) { b.zone = z }
+
+func (b *ListToolbar) Query() string { return b.filter.Query() }
+
+func (b *ListToolbar) ClearFilter() { b.filter.Clear() }
+
+func (b *ListToolbar) syncInputFocus() {
+	b.filter.SetFocused(b.zone == listZoneFilter)
+}
+
+func (b *ListToolbar) FocusFilter() {
+	b.zone = listZoneFilter
+	b.filter.SetFocused(true)
+}
+
+func (b *ListToolbar) FocusTable() {
+	b.zone = listZoneTable
+	b.filter.SetFocused(false)
+}
+
+func (b *ListToolbar) TabForward(meta ListToolbarMeta) {
+	switch b.zone {
+	case listZoneTable:
+		b.FocusFilter()
+	case listZoneFilter:
+		b.zone = listZoneActions
+		b.actionIdx = 0
+		b.filter.SetFocused(false)
+		b.clampActionIdx(meta)
+	case listZoneActions:
+		if b.nextEnabledAction(meta, 1) {
+			return
+		}
+		b.FocusTable()
+	}
+}
+
+func (b *ListToolbar) TabBackward(meta ListToolbarMeta) {
+	switch b.zone {
+	case listZoneTable:
+		b.zone = listZoneActions
+		b.actionIdx = b.lastEnabledAction(meta)
+		b.filter.SetFocused(false)
+	case listZoneActions:
+		if b.nextEnabledAction(meta, -1) {
+			return
+		}
+		b.FocusFilter()
+	case listZoneFilter:
+		b.FocusTable()
+	}
+}
+
+func (b *ListToolbar) toolbarActions(meta ListToolbarMeta) []model.ActionID {
+	var out []model.ActionID
+	if meta.SaveEnabled {
+		out = append(out, model.ActionSave)
+	}
+	if meta.DeleteEnabled {
+		out = append(out, model.ActionDelete)
+	}
+	return out
+}
+
+func (b *ListToolbar) clampActionIdx(meta ListToolbarMeta) {
+	acts := b.toolbarActions(meta)
+	if len(acts) == 0 {
+		b.actionIdx = 0
+		return
+	}
+	if b.actionIdx >= len(acts) {
+		b.actionIdx = len(acts) - 1
+	}
+	if b.actionIdx < 0 {
+		b.actionIdx = 0
+	}
+}
+
+func (b *ListToolbar) lastEnabledAction(meta ListToolbarMeta) int {
+	acts := b.toolbarActions(meta)
+	if len(acts) == 0 {
+		return 0
+	}
+	return len(acts) - 1
+}
+
+func (b *ListToolbar) nextEnabledAction(meta ListToolbarMeta, delta int) bool {
+	acts := b.toolbarActions(meta)
+	if len(acts) == 0 {
+		return false
+	}
+	next := b.actionIdx + delta
+	if next >= 0 && next < len(acts) {
+		b.actionIdx = next
+		return true
+	}
+	return false
+}
+
+func (b *ListToolbar) SelectedAction(meta ListToolbarMeta) (model.ActionID, bool) {
+	acts := b.toolbarActions(meta)
+	if b.zone != listZoneActions || len(acts) == 0 {
+		return "", false
+	}
+	b.clampActionIdx(meta)
+	return acts[b.actionIdx], true
+}
+
+func (b *ListToolbar) MoveAction(delta int, meta ListToolbarMeta) {
+	if b.zone != listZoneActions {
+		return
+	}
+	b.nextEnabledAction(meta, delta)
+}
+
+func (b *ListToolbar) Update(msg tea.Msg, meta ListToolbarMeta) tea.Cmd {
+	if b.zone == listZoneFilter {
+		if key, ok := msg.(tea.KeyMsg); ok {
+			cmd := b.filter.Update(msg)
+			switch key.String() {
+			case "tab":
+				b.TabForward(meta)
+				return cmd
+			case "shift+tab", "backtab":
+				b.TabBackward(meta)
+				return cmd
+			case "enter":
+				b.zone = listZoneActions
+				b.actionIdx = 0
+				b.filter.SetFocused(false)
+				b.clampActionIdx(meta)
+				return cmd
+			}
+			return cmd
+		}
+		return b.filter.Update(msg)
+	}
+	if b.zone == listZoneActions {
+		if key, ok := msg.(tea.KeyMsg); ok {
+			switch key.String() {
+			case "left", "h":
+				b.MoveAction(-1, meta)
+			case "right", "l":
+				b.MoveAction(1, meta)
+			case "tab":
+				b.TabForward(meta)
+			case "shift+tab", "backtab":
+				b.TabBackward(meta)
+			}
+		}
+	}
+	return nil
+}
+
+func (b *ListToolbar) View(meta ListToolbarMeta) string {
+	title := b.styles.title.Render(meta.Subject)
+	if meta.Count > 0 || meta.Subject != "" {
+		title = b.styles.title.Render(formatListToolbarTitle(meta))
+	}
+	if meta.LoadingMore {
+		title += lipgloss.NewStyle().Foreground(lipgloss.Color("241")).Render("  …")
+	}
+
+	filter := b.filter.CompactView()
+	buttons, rects := b.renderButtons(meta)
+
+	avail := b.width - runewidth.StringWidth(buttons) - 1
+	if avail < 8 {
+		avail = 8
+	}
+	b.btnX0 = avail + 1
+	for i := range rects {
+		rects[i].x0 += b.btnX0
+		rects[i].x1 += b.btnX0
+	}
+	b.actionRects = rects
+
+	filterLine := padDisplayWidth(filter, avail) + " " + buttons
+	if runewidth.StringWidth(filterLine) > b.width {
+		filterLine = runewidth.Truncate(filterLine, b.width, "")
+	}
+
+	lines := []string{
+		padANSIWidth(title, b.width),
+		padANSIWidth(filterLine, b.width),
+	}
+	return lipgloss.NewStyle().Width(b.width).MaxWidth(b.width).Render(strings.Join(lines, "\n"))
+}
+
+func formatListToolbarTitle(meta ListToolbarMeta) string {
+	s := meta.Subject
+	if meta.Count > 0 {
+		s = fmt.Sprintf("%s (%d)", meta.Subject, meta.Count)
+	}
+	if meta.SortLabel != "" {
+		s += "  " + meta.SortLabel
+	}
+	return s
+}
+
+func (b *ListToolbar) renderButtons(meta ListToolbarMeta) (string, []toolbarBtnRect) {
+	type btn struct {
+		action  model.ActionID
+		icon    string
+		enabled bool
+		danger  bool
+	}
+	defs := []btn{
+		{model.ActionSave, "💾", meta.SaveEnabled, false},
+		{model.ActionDelete, "🗑", meta.DeleteEnabled, true},
+	}
+	acts := b.toolbarActions(meta)
+	rects := make([]toolbarBtnRect, 0, len(defs))
+	parts := make([]string, 0, len(defs))
+	x := 0
+	for i, d := range defs {
+		active := b.zone == listZoneActions && len(acts) > 0 && b.actionIdx < len(acts) && acts[b.actionIdx] == d.action
+		var style lipgloss.Style
+		switch {
+		case !d.enabled:
+			style = b.styles.btnOff
+		case active && d.danger:
+			style = b.styles.btnDn
+		case active:
+			style = b.styles.btnAct
+		case d.danger:
+			style = b.styles.btn.Foreground(lipgloss.Color("203"))
+		default:
+			style = b.styles.btnOn
+		}
+		rendered := style.Render(d.icon)
+		w := runewidth.StringWidth(rendered)
+		rects = append(rects, toolbarBtnRect{action: d.action, x0: x, x1: x + w})
+		x += w
+		parts = append(parts, rendered)
+		_ = i
+	}
+	return strings.Join(parts, " "), rects
+}
+
+func (b *ListToolbar) ActionAt(x int, meta ListToolbarMeta) (model.ActionID, bool) {
+	_ = meta
+	if x < 0 {
+		return "", false
+	}
+	for _, r := range b.actionRects {
+		if x >= r.x0 && x < r.x1 {
+			action := r.action
+			if b.IsActionEnabled(action, meta) {
+				return action, true
+			}
+			return "", false
+		}
+	}
+	return "", false
+}
+
+func (b *ListToolbar) IsActionEnabled(action model.ActionID, meta ListToolbarMeta) bool {
+	switch action {
+	case model.ActionSave:
+		return meta.SaveEnabled
+	case model.ActionDelete:
+		return meta.DeleteEnabled
+	default:
+		return false
+	}
+}

cmd/office/ui/list_toolbar_test.go

@@ -0,0 +1,58 @@
+package ui
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestListToolbarShowsFilterAndActions(t *testing.T) {
+	b := newListToolbar()
+	b.SetWidth(60)
+	view := b.View(ListToolbarMeta{
+		Subject: "projects",
+		Count:   3,
+	})
+	if !strings.Contains(view, "projects (3)") {
+		t.Fatalf("missing subject: %q", view)
+	}
+	if !strings.Contains(view, "💾") || !strings.Contains(view, "🗑") {
+		t.Fatalf("missing action icons: %q", view)
+	}
+}
+
+func TestListToolbarActionsEnabledFromMeta(t *testing.T) {
+	b := newListToolbar()
+	on := ListToolbarMeta{SaveEnabled: true, DeleteEnabled: true}
+	off := ListToolbarMeta{}
+	if !b.IsActionEnabled(model.ActionSave, on) {
+		t.Fatal("save should be enabled")
+	}
+	if b.IsActionEnabled(model.ActionSave, off) {
+		t.Fatal("save should be disabled")
+	}
+	if !b.IsActionEnabled(model.ActionDelete, on) {
+		t.Fatal("delete should be enabled")
+	}
+}
+
+func TestCanSaveFromListRequiresSelection(t *testing.T) {
+	m := Model{
+		items: []model.Item{
+			{ID: "1", Title: "A", Kind: model.KindProject, Selected: true},
+		},
+	}
+	if m.canSaveFromList() {
+		t.Fatal("save should require matching loaded detail")
+	}
+	m.detail = newDetailPane()
+	m.detail.SetSize(40, 20)
+	m.detail.LoadForm(model.Item{ID: "1", Kind: model.KindProject}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "A", HasStatus: true,
+	})
+	if !m.canSaveFromList() {
+		t.Fatal("save should be enabled with one selected row and loaded detail")
+	}
+}

cmd/office/ui/scroll.go

@@ -0,0 +1,100 @@
+package ui
+
+import (
+	"github.com/charmbracelet/bubbles/viewport"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func (m *Model) scrollFocusedPane(key string) bool {
+	switch m.focus {
+	case model.FocusMenu:
+		switch key {
+		case "pgdown", "pgdn", "ctrl+d", "pgup", "b", "ctrl+u", "home", "g", "end", "G":
+			return scrollViewport(&m.menuVP, key)
+		}
+		return false
+	case model.FocusList:
+		switch key {
+		case "pgdown", "pgdn", "ctrl+d":
+			m.listTable.PageScroll(1)
+			return true
+		case "pgup", "b", "ctrl+u":
+			m.listTable.PageScroll(-1)
+			return true
+		}
+		return false
+	case model.FocusPreview:
+		if m.detail.Zone() != detailZoneContent {
+			return false
+		}
+		return m.detail.ScrollDocument(key)
+	default:
+		return false
+	}
+}
+
+func (m *Model) paneHeight() int {
+	h := m.height - 3
+	if h < 3 {
+		h = 3
+	}
+	return h
+}
+
+const (
+	paneBorderChars  = 2 // left + right border drawn outside lipgloss Width
+	panePaddingChars = 2 // Padding(0, 1) on paneStyle
+)
+
+// paneLipglossWidth maps an on-screen pane width to lipgloss Style.Width.
+// Bordered panes render two cells wider than the Width value.
+func paneLipglossWidth(rendered int) int {
+	if rendered <= 0 {
+		return 8
+	}
+	w := rendered - paneBorderChars
+	if w < 8 {
+		w = 8
+	}
+	return w
+}
+
+// paneContentWidth is the usable inner width for viewports and tables.
+func paneContentWidth(rendered int) int {
+	if rendered <= 0 {
+		return 8
+	}
+	w := rendered - paneBorderChars - panePaddingChars
+	if w < 8 {
+		w = 8
+	}
+	return w
+}
+
+func (m *Model) paneInnerWidth(rendered int) int {
+	return paneContentWidth(rendered)
+}
+
+func scrollViewport(vp *viewport.Model, key string) bool {
+	switch key {
+	case "up", "k":
+		vp.LineUp(1)
+		return true
+	case "down", "j":
+		vp.LineDown(1)
+		return true
+	case "pgdown", "pgdn", "ctrl+d":
+		vp.ViewDown()
+		return true
+	case "pgup", "b", "ctrl+u":
+		vp.ViewUp()
+		return true
+	case "home", "g":
+		vp.GotoTop()
+		return true
+	case "end", "G":
+		vp.GotoBottom()
+		return true
+	}
+	return false
+}

cmd/office/ui/scroll_menu_test.go

@@ -0,0 +1,48 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestScrollFocusedPaneMenuUpDownMovesTree(t *testing.T) {
+	m := NewModel(nil)
+	m.focus = model.FocusMenu
+	m.syncMenuContent()
+	before := m.nav.Cursor()
+
+	if m.scrollFocusedPane("down") {
+		t.Fatal("down should not be consumed by menu viewport scroll")
+	}
+	m.moveDown()
+	m.syncFocusedPane()
+	if m.nav.Cursor() != before+1 {
+		t.Fatalf("cursor=%d want %d", m.nav.Cursor(), before+1)
+	}
+}
+
+func TestScrollFocusedPaneMenuPageKeysScrollViewport(t *testing.T) {
+	m := NewModel(nil)
+	m.focus = model.FocusMenu
+	for i := 0; i < 40; i++ {
+		m.nav.MoveDown()
+	}
+	m.syncMenuContent()
+	if !m.scrollFocusedPane("pgup") {
+		t.Fatal("pgup should scroll menu viewport")
+	}
+}
+
+func TestHandleMenuHorizontalRightOpensLeaf(t *testing.T) {
+	m := NewModel(nil)
+	m.focus = model.FocusMenu
+	// cursor starts on Projects leaf
+	next, cmd := m.handleMenuHorizontal(1)
+	if cmd == nil {
+		t.Fatal("expected load list command")
+	}
+	if next.listSpec.Subject != model.SubjectProjects {
+		t.Fatalf("expected projects list, got %+v", next.listSpec)
+	}
+}

cmd/office/ui/scrollbar.go

@@ -0,0 +1,65 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/lipgloss"
+)
+
+// ScrollbarMetrics computes thumb position for a vertical scrollbar.
+func ScrollbarMetrics(totalLines, viewportHeight, yOffset int) (show bool, thumbStart, thumbEnd int) {
+	if totalLines <= viewportHeight || viewportHeight < 1 {
+		return false, 0, 0
+	}
+	maxOff := totalLines - viewportHeight
+	if maxOff < 0 {
+		maxOff = 0
+	}
+	thumbSize := viewportHeight * viewportHeight / totalLines
+	if thumbSize < 1 {
+		thumbSize = 1
+	}
+	if thumbSize > viewportHeight {
+		thumbSize = viewportHeight
+	}
+	travel := viewportHeight - thumbSize
+	thumbStart = 0
+	if maxOff > 0 {
+		thumbStart = yOffset * travel / maxOff
+	}
+	return true, thumbStart, thumbStart + thumbSize
+}
+
+// ApplyVerticalScrollbar draws a 1-column scrollbar on the right when content overflows.
+func ApplyVerticalScrollbar(view string, width, height, totalLines, yOffset int) string {
+	show, thumbStart, thumbEnd := ScrollbarMetrics(totalLines, height, yOffset)
+	if !show || width < 2 {
+		return view
+	}
+	contentWidth := width - 1
+	lines := strings.Split(view, "\n")
+	for len(lines) < height {
+		lines = append(lines, "")
+	}
+	if len(lines) > height {
+		lines = lines[:height]
+	}
+	track := lipgloss.NewStyle().Foreground(lipgloss.Color("238"))
+	thumb := lipgloss.NewStyle().Foreground(lipgloss.Color("245"))
+	out := make([]string, height)
+	for row := 0; row < height; row++ {
+		line := padANSIWidth(lines[row], contentWidth)
+		ch := "│"
+		style := track
+		if row >= thumbStart && row < thumbEnd {
+			ch = "█"
+			style = thumb
+		}
+		out[row] = line + style.Render(ch)
+	}
+	return strings.Join(out, "\n")
+}
+
+func padDisplayWidth(line string, width int) string {
+	return padANSIWidth(line, width)
+}

cmd/office/ui/scrollbar_test.go

@@ -0,0 +1,32 @@
+package ui
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestScrollbarMetricsHiddenWhenFits(t *testing.T) {
+	show, _, _ := ScrollbarMetrics(5, 10, 0)
+	if show {
+		t.Fatal("expected no scrollbar when content fits")
+	}
+}
+
+func TestScrollbarMetricsVisibleWhenOverflow(t *testing.T) {
+	show, start, end := ScrollbarMetrics(100, 10, 50)
+	if !show || end <= start {
+		t.Fatalf("expected thumb, got %d..%d", start, end)
+	}
+}
+
+func TestApplyVerticalScrollbarAddsColumn(t *testing.T) {
+	view := "line1\nline2\nline3"
+	out := ApplyVerticalScrollbar(view, 12, 3, 10, 0)
+	lines := strings.Split(out, "\n")
+	if len(lines) != 3 {
+		t.Fatalf("lines=%d", len(lines))
+	}
+	if !strings.HasSuffix(lines[0], "█") && !strings.HasSuffix(lines[0], "│") {
+		t.Fatalf("expected scrollbar glyph: %q", lines[0])
+	}
+}

cmd/office/ui/table.go

@@ -0,0 +1,483 @@
+package ui
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+type tableStyles struct {
+	title      lipgloss.Style
+	header     lipgloss.Style
+	headerSort lipgloss.Style
+	cell       lipgloss.Style
+	rowActive  lipgloss.Style
+	colActive  lipgloss.Style
+	cellActive lipgloss.Style
+	rowSelect  lipgloss.Style
+	cellSelect lipgloss.Style
+	help       lipgloss.Style
+}
+
+func defaultTableStyles() tableStyles {
+	return tableStyles{
+		title:      lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("252")),
+		header:     lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("236")).Padding(0, 1),
+		headerSort: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("229")).Background(lipgloss.Color("62")).Padding(0, 1),
+		cell:       lipgloss.NewStyle().Foreground(lipgloss.Color("252")).Padding(0, 1),
+		rowActive:  lipgloss.NewStyle().Foreground(lipgloss.Color("255")).Background(lipgloss.Color("238")),
+		colActive:  lipgloss.NewStyle().Foreground(lipgloss.Color("255")).Background(lipgloss.Color("237")),
+		cellActive: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("62")),
+		rowSelect:  lipgloss.NewStyle().Foreground(lipgloss.Color("255")).Background(lipgloss.Color("22")),
+		cellSelect: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("255")).Background(lipgloss.Color("34")),
+		help:       lipgloss.NewStyle().Foreground(lipgloss.Color("241")),
+	}
+}
+
+// DataTable is a spreadsheet-style listContent table for the list pane.
+type DataTable struct {
+	spec      model.ListSpec
+	columns   []model.TableColumn
+	items     []model.Item
+	order     []int
+	cursorRow int
+	cursorCol int
+	colScroll int
+	sortCol   int
+	sortAsc   bool
+	focused   bool
+	ready     bool
+	loadingMore bool
+	width     int
+	height    int
+	viewport  viewport.Model
+	styles    tableStyles
+}
+
+func newDataTable() DataTable {
+	t := DataTable{
+		sortCol:  -1,
+		styles:   defaultTableStyles(),
+		viewport: viewport.New(40, 10),
+	}
+	t.viewport.MouseWheelEnabled = true
+	return t
+}
+
+func (t *DataTable) SetSize(w, h int) {
+	if w < 8 {
+		w = 8
+	}
+	if h < 3 {
+		h = 3
+	}
+	t.width = w
+	t.height = h
+	t.viewport.Width = w
+	t.viewport.Height = h - 1 // column header
+	if t.viewport.Height < 1 {
+		t.viewport.Height = 1
+	}
+	t.refreshViewport()
+}
+
+func (t *DataTable) SetFocused(f bool) {
+	t.focused = f
+	t.refreshViewport()
+}
+
+func (t *DataTable) SetData(spec model.ListSpec, items []model.Item) {
+	t.spec = spec
+	t.items = items
+	t.columns = model.BuildColumns(spec.Subject, items)
+	t.order = make([]int, len(items))
+	for i := range t.order {
+		t.order[i] = i
+	}
+	t.cursorRow = 0
+	t.cursorCol = 0
+	t.colScroll = 0
+	t.ready = true
+	if t.sortCol >= 0 {
+		t.applySort()
+	}
+	t.clampCursor()
+	t.refreshViewport()
+}
+
+func (t *DataTable) Clear() {
+	t.ready = false
+	t.items = nil
+	t.order = nil
+	t.columns = nil
+	t.cursorRow = 0
+	t.cursorCol = 0
+	t.viewport.SetContent("")
+}
+
+func (t *DataTable) ItemIndex() int {
+	if t.cursorRow < 0 || t.cursorRow >= len(t.order) {
+		return -1
+	}
+	return t.order[t.cursorRow]
+}
+
+// CursorRow is the visual row index in the current table order.
+func (t DataTable) CursorRow() int {
+	return t.cursorRow
+}
+
+// Items returns the backing slice (after appends).
+func (t DataTable) Items() []model.Item {
+	return t.items
+}
+
+// NearEnd reports whether the cursor is within threshold rows of the last row.
+func (t DataTable) NearEnd(threshold int) bool {
+	if !t.ready || len(t.order) == 0 {
+		return false
+	}
+	return t.cursorRow >= len(t.order)-threshold
+}
+
+func (t *DataTable) SetLoadingMore(on bool) {
+	t.loadingMore = on
+}
+
+// AppendItems adds new rows, skipping duplicate IDs. Returns how many were added.
+func (t *DataTable) AppendItems(items []model.Item) int {
+	if !t.ready || len(items) == 0 {
+		return 0
+	}
+	seen := make(map[string]struct{}, len(t.items))
+	for _, it := range t.items {
+		if it.ID != "" {
+			seen[it.ID] = struct{}{}
+		}
+	}
+	added := 0
+	for _, it := range items {
+		if it.ID != "" {
+			if _, ok := seen[it.ID]; ok {
+				continue
+			}
+			seen[it.ID] = struct{}{}
+		}
+		idx := len(t.items)
+		t.items = append(t.items, it)
+		t.order = append(t.order, idx)
+		added++
+	}
+	if added > 0 {
+		if t.sortCol >= 0 {
+			t.applySort()
+		}
+		t.clampCursor()
+		t.refreshViewport()
+	}
+	return added
+}
+
+func (t *DataTable) MoveRow(delta int) {
+	if !t.ready || len(t.order) == 0 {
+		return
+	}
+	prev := t.cursorRow
+	t.cursorRow = clampInt(t.cursorRow+delta, 0, len(t.order)-1)
+	t.syncRowScroll(prev)
+	t.refreshViewport()
+}
+
+func (t *DataTable) MoveCol(delta int) {
+	if !t.ready || len(t.columns) == 0 {
+		return
+	}
+	t.cursorCol = clampInt(t.cursorCol+delta, 0, len(t.columns)-1)
+	t.ensureColVisible()
+	t.refreshViewport()
+}
+
+func (t *DataTable) ToggleSort() {
+	if !t.ready || len(t.columns) == 0 || len(t.order) == 0 {
+		return
+	}
+	if t.sortCol == t.cursorCol {
+		t.sortAsc = !t.sortAsc
+	} else {
+		t.sortCol = t.cursorCol
+		t.sortAsc = true
+	}
+	t.applySort()
+	t.refreshViewport()
+}
+
+func (t *DataTable) applySort() {
+	if t.sortCol < 0 || t.sortCol >= len(t.columns) {
+		return
+	}
+	key := t.columns[t.sortCol].Key
+	sort.SliceStable(t.order, func(i, j int) bool {
+		a := model.CellText(t.items[t.order[i]], key)
+		b := model.CellText(t.items[t.order[j]], key)
+		if t.sortAsc {
+			return strings.ToLower(a) < strings.ToLower(b)
+		}
+		return strings.ToLower(a) > strings.ToLower(b)
+	})
+}
+
+func (t *DataTable) PageScroll(delta int) {
+	if delta > 0 {
+		t.viewport.ViewDown()
+	} else {
+		t.viewport.ViewUp()
+	}
+}
+
+func (t *DataTable) Update(msg tea.Msg) tea.Cmd {
+	if !t.focused || !t.ready {
+		return nil
+	}
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "pgdown", "pgdn", "ctrl+d":
+			t.viewport.ViewDown()
+		case "pgup", "b", "ctrl+u":
+			t.viewport.ViewUp()
+		}
+	case tea.MouseMsg:
+		var cmd tea.Cmd
+		t.viewport, cmd = t.viewport.Update(msg)
+		return cmd
+	}
+	return nil
+}
+
+func (t DataTable) LoadingMore() bool { return t.loadingMore }
+
+func (t DataTable) View() string {
+	if !t.ready {
+		return "\nSelect a leaf in the tree (•) and press Enter.\n"
+	}
+	header := t.renderHeader()
+	if t.hasVerticalScrollbar() {
+		header = padANSIWidth(header, t.lineContentWidth())
+	}
+	body := ApplyVerticalScrollbar(
+		t.viewport.View(),
+		t.width,
+		t.viewport.Height,
+		t.viewport.TotalLineCount(),
+		t.viewport.YOffset,
+	)
+	return lipgloss.JoinVertical(lipgloss.Left, header, body)
+}
+
+func (t DataTable) SortHint() string {
+	if t.sortCol < 0 || t.sortCol >= len(t.columns) {
+		return ""
+	}
+	dir := "▲"
+	if !t.sortAsc {
+		dir = "▼"
+	}
+	return fmt.Sprintf("sort: %s %s", t.columns[t.sortCol].Title, dir)
+}
+
+func (t DataTable) SubjectLabel() string {
+	if !t.ready {
+		return "List"
+	}
+	return string(t.spec.Subject)
+}
+
+func (t DataTable) ItemCount() int {
+	return len(t.items)
+}
+
+func (t DataTable) hasVerticalScrollbar() bool {
+	return t.ready && t.viewport.TotalLineCount() > t.viewport.Height
+}
+
+func (t DataTable) lineContentWidth() int {
+	w := t.width
+	if t.hasVerticalScrollbar() && w > 1 {
+		w--
+	}
+	return w
+}
+
+func (t *DataTable) visibleLayout() (indices []int, widths map[int]int) {
+	lay := t.computeLayout()
+	return lay.indices, lay.widths
+}
+
+func (t *DataTable) renderHeader() string {
+	indices, widths := t.visibleLayout()
+	cells := make([]string, 0, len(indices))
+	for _, colIdx := range indices {
+		col := t.columns[colIdx]
+		w := widths[colIdx]
+		title := col.Title
+		if t.sortCol == colIdx {
+			if t.sortAsc {
+				title += " ▲"
+			} else {
+				title += " ▼"
+			}
+		}
+		text := truncateCellText(title, w)
+		style := t.styles.header
+		if t.focused && colIdx == t.cursorCol {
+			style = t.styles.headerSort
+		}
+		cells = append(cells, renderTableCell(style, text, w))
+	}
+	return lipgloss.JoinHorizontal(lipgloss.Left, cells...)
+}
+
+func (t *DataTable) refreshViewport() {
+	if !t.ready {
+		return
+	}
+	rows := make([]string, 0, len(t.order))
+	for row := 0; row < len(t.order); row++ {
+		rows = append(rows, t.renderRow(row))
+	}
+	t.viewport.SetContent(strings.Join(rows, "\n"))
+	t.syncRowScroll(t.cursorRow)
+}
+
+func (t *DataTable) renderRow(row int) string {
+	item := t.items[t.order[row]]
+	selected := item.Selected
+	indices, widths := t.visibleLayout()
+	cells := make([]string, 0, len(indices))
+	for _, colIdx := range indices {
+		col := t.columns[colIdx]
+		w := widths[colIdx]
+		raw := strings.TrimSpace(model.CellText(item, col.Key))
+		text := truncateCellText(raw, w)
+		cells = append(cells, t.styleCell(row, colIdx, col.Key, selected, item, text, w))
+	}
+	return lipgloss.JoinHorizontal(lipgloss.Left, cells...)
+}
+
+func (t *DataTable) styleCell(row, col int, colKey string, selected bool, item model.Item, text string, width int) string {
+	if t.spec.Subject == model.SubjectProjects {
+		style := t.projectCellStyle(row, col, colKey, selected, item)
+		return renderTableCell(style, text, width)
+	}
+
+	isRow := row == t.cursorRow
+	isCol := col == t.cursorCol
+	isCell := t.focused && isRow && isCol
+
+	var base lipgloss.Style
+	switch {
+	case selected && isCell:
+		base = t.styles.cellSelect
+	case selected && isRow:
+		base = t.styles.rowSelect
+	case selected:
+		base = t.styles.rowSelect
+	case isCell:
+		base = t.styles.cellActive
+	case t.focused && isRow:
+		base = t.styles.rowActive
+	case t.focused && isCol:
+		base = t.styles.colActive
+	default:
+		base = t.styles.cell
+	}
+	return renderTableCell(base, text, width)
+}
+
+func (t *DataTable) ensureColVisible() {
+	if flex, ok := model.TableFlexLayoutFor(t.spec.Subject); ok && flex.FlexColumnKey != "" {
+		t.colScroll = 0
+		return
+	}
+	contentW := t.lineContentWidth()
+	vis := pickVisibleColumnIndices(t.columns, t.colScroll, contentW)
+	if len(vis) == 0 {
+		return
+	}
+	first, last := vis[0], vis[len(vis)-1]
+	if t.cursorCol < first {
+		t.colScroll = t.cursorCol
+	}
+	if t.cursorCol > last {
+		t.colScroll = t.cursorCol
+		for t.cursorCol >= 0 {
+			vis = pickVisibleColumnIndices(t.columns, t.colScroll, contentW)
+			if len(vis) == 0 {
+				break
+			}
+			last = vis[len(vis)-1]
+			if t.cursorCol <= last {
+				break
+			}
+			if t.colScroll < len(t.columns)-1 {
+				t.colScroll++
+			} else {
+				break
+			}
+		}
+	}
+}
+
+func (t *DataTable) syncRowScroll(prev int) {
+	if t.cursorRow < t.viewport.YOffset {
+		t.viewport.YOffset = t.cursorRow
+	} else if t.cursorRow >= t.viewport.YOffset+t.viewport.Height {
+		t.viewport.YOffset = t.cursorRow - t.viewport.Height + 1
+	}
+	if t.viewport.YOffset < 0 {
+		t.viewport.YOffset = 0
+	}
+	maxOff := len(t.order) - t.viewport.Height
+	if maxOff < 0 {
+		maxOff = 0
+	}
+	if t.viewport.YOffset > maxOff {
+		t.viewport.YOffset = maxOff
+	}
+	_ = prev
+}
+
+func (t *DataTable) clampCursor() {
+	if len(t.order) == 0 {
+		t.cursorRow = 0
+	} else {
+		t.cursorRow = clampInt(t.cursorRow, 0, len(t.order)-1)
+	}
+	if len(t.columns) == 0 {
+		t.cursorCol = 0
+	} else {
+		t.cursorCol = clampInt(t.cursorCol, 0, len(t.columns)-1)
+	}
+}
+
+func clampInt(v, lo, hi int) int {
+	if v < lo {
+		return lo
+	}
+	if v > hi {
+		return hi
+	}
+	return v
+}
+
+// tableKeyMatches helps avoid importing key in app.go for sort-only bindings.
+func (t *DataTable) UpdateItems(items []model.Item) {
+	t.items = items
+	t.clampCursor()
+	t.refreshViewport()
+}

cmd/office/ui/table_append_test.go

@@ -0,0 +1,40 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDataTableAppendItemsDedupes(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(40, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectMailInbox}, []model.Item{
+		{ID: "1", Title: "A", Kind: model.KindMail},
+	})
+	added := tbl.AppendItems([]model.Item{
+		{ID: "1", Title: "dup", Kind: model.KindMail},
+		{ID: "2", Title: "B", Kind: model.KindMail},
+	})
+	if added != 1 || len(tbl.Items()) != 2 {
+		t.Fatalf("added=%d len=%d", added, len(tbl.Items()))
+	}
+}
+
+func TestDataTableNearEnd(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(40, 10)
+	items := make([]model.Item, 10)
+	for i := range items {
+		items[i] = model.Item{ID: string(rune('0' + i)), Title: "x", Kind: model.KindMail}
+	}
+	tbl.SetData(model.ListSpec{Subject: model.SubjectMailInbox}, items)
+	tbl.cursorRow = 7
+	if !tbl.NearEnd(3) {
+		t.Fatal("expected near end")
+	}
+	tbl.cursorRow = 0
+	if tbl.NearEnd(3) {
+		t.Fatal("expected not near end")
+	}
+}

cmd/office/ui/table_layout.go

@@ -0,0 +1,225 @@
+package ui
+
+import (
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
+)
+
+type columnLayout struct {
+	indices []int
+	widths  map[int]int
+}
+
+func (t *DataTable) computeLayout() columnLayout {
+	contentW := t.lineContentWidth()
+	if len(t.columns) == 0 || contentW <= 0 {
+		return columnLayout{widths: map[int]int{}}
+	}
+	if flex, ok := model.TableFlexLayoutFor(t.spec.Subject); ok {
+		return layoutFlexTable(t.columns, contentW, flex.FlexColumnKey, flex.MinFlexWidth)
+	}
+	return layoutScrollingTable(t.columns, t.colScroll, contentW)
+}
+
+const minFixedColumnWidth = 3
+
+// layoutFlexTable shows every column; flexKey absorbs leftover width.
+func layoutFlexTable(cols []model.TableColumn, totalW int, flexKey string, minFlexWidth int) columnLayout {
+	indices := make([]int, len(cols))
+	for i := range cols {
+		indices[i] = i
+	}
+	widths := make(map[int]int, len(cols))
+
+	flexIdx := -1
+	fixed := 0
+	for i, col := range cols {
+		if col.Key == flexKey {
+			flexIdx = i
+			continue
+		}
+		widths[i] = col.Width
+		fixed += widths[i]
+	}
+	if flexIdx < 0 {
+		return layoutScrollingTable(cols, 0, totalW)
+	}
+
+	flexW := totalW - fixed
+	if flexW < minFlexWidth {
+		shrinkFixedColumns(widths, indices, flexIdx, fixed+minFlexWidth-totalW)
+		fixed = 0
+		for _, i := range indices {
+			if i != flexIdx {
+				fixed += widths[i]
+			}
+		}
+		flexW = totalW - fixed
+		if flexW < minFlexWidth {
+			flexW = minFlexWidth
+		}
+	}
+	widths[flexIdx] = flexW
+	normalizeWidthSum(widths, indices, totalW, flexIdx)
+	return columnLayout{indices: indices, widths: widths}
+}
+
+func shrinkFixedColumns(widths map[int]int, indices []int, flexIdx, need int) {
+	for need > 0 {
+		changed := false
+		for _, i := range indices {
+			if i == flexIdx || widths[i] <= minFixedColumnWidth {
+				continue
+			}
+			widths[i]--
+			need--
+			changed = true
+			if need == 0 {
+				return
+			}
+		}
+		if !changed {
+			return
+		}
+	}
+}
+
+func layoutScrollingTable(cols []model.TableColumn, colScroll, contentW int) columnLayout {
+	indices := pickVisibleColumnIndices(cols, colScroll, contentW)
+	widths := make(map[int]int, len(indices))
+	if len(indices) == 0 {
+		return columnLayout{indices: indices, widths: widths}
+	}
+	minSum := 0
+	for _, i := range indices {
+		minSum += cols[i].Width
+	}
+	widths = distributeColumnWidths(minSum, contentW, indices, cols)
+	return columnLayout{indices: indices, widths: widths}
+}
+
+func pickVisibleColumnIndices(cols []model.TableColumn, colScroll, contentW int) []int {
+	var out []int
+	used := 0
+	for colIdx := colScroll; colIdx < len(cols); colIdx++ {
+		w := cols[colIdx].Width
+		if len(out) > 0 && used+w > contentW {
+			break
+		}
+		out = append(out, colIdx)
+		used += w
+	}
+	if len(out) == 0 {
+		colIdx := colScroll
+		if colIdx < 0 || colIdx >= len(cols) {
+			colIdx = 0
+		}
+		out = []int{colIdx}
+	}
+	return out
+}
+
+// distributeColumnWidths expands or shrinks visible columns to exactly fill total width.
+func distributeColumnWidths(minSum, total int, indices []int, cols []model.TableColumn) map[int]int {
+	out := make(map[int]int, len(indices))
+	if len(indices) == 0 {
+		return out
+	}
+	if total < len(indices) {
+		total = len(indices)
+	}
+	if minSum <= 0 {
+		each := total / len(indices)
+		if each < 1 {
+			each = 1
+		}
+		for _, i := range indices {
+			out[i] = each
+		}
+		normalizeWidthSum(out, indices, total, indices[len(indices)-1])
+		return out
+	}
+	for _, i := range indices {
+		out[i] = cols[i].Width
+	}
+	if minSum >= total {
+		for _, i := range indices {
+			out[i] = cols[i].Width * total / minSum
+			if out[i] < 1 {
+				out[i] = 1
+			}
+		}
+		normalizeWidthSum(out, indices, total, flexColumnIndex(indices, cols))
+		return out
+	}
+	extra := total - minSum
+	flex := flexColumnIndices(indices, cols)
+	flexSum := 0
+	for _, i := range flex {
+		flexSum += cols[i].Width
+	}
+	if flexSum <= 0 {
+		flexSum = len(flex)
+	}
+	for _, i := range flex {
+		out[i] += extra * cols[i].Width / flexSum
+	}
+	normalizeWidthSum(out, indices, total, flexColumnIndex(indices, cols))
+	return out
+}
+
+func flexColumnIndices(indices []int, cols []model.TableColumn) []int {
+	flex := make([]int, 0, len(indices))
+	for _, i := range indices {
+		switch cols[i].Key {
+		case "title", "subtitle", "description", "displayName", "primaryEmail", "from", "to", "type":
+			flex = append(flex, i)
+		}
+	}
+	if len(flex) == 0 {
+		flex = append(flex, indices...)
+	}
+	return flex
+}
+
+func flexColumnIndex(indices []int, cols []model.TableColumn) int {
+	flex := flexColumnIndices(indices, cols)
+	if len(flex) == 0 {
+		return indices[len(indices)-1]
+	}
+	for _, i := range indices {
+		if cols[i].Key == "title" {
+			return i
+		}
+	}
+	return flex[0]
+}
+
+func normalizeWidthSum(widths map[int]int, indices []int, total, adjustIdx int) {
+	if len(indices) == 0 {
+		return
+	}
+	sum := 0
+	for _, i := range indices {
+		sum += widths[i]
+	}
+	if adjustIdx < 0 {
+		adjustIdx = indices[len(indices)-1]
+	}
+	widths[adjustIdx] += total - sum
+	if widths[adjustIdx] < 1 {
+		widths[adjustIdx] = 1
+	}
+}
+
+const cellHPadding = 0 // padding lives in outer lipgloss styles; column width is the full cell width
+
+func truncateCellText(text string, colWidth int) string {
+	if colWidth < 1 {
+		colWidth = 1
+	}
+	if runewidth.StringWidth(text) <= colWidth {
+		return text
+	}
+	return runewidth.Truncate(text, colWidth, "…")
+}

cmd/office/ui/table_layout_test.go

@@ -0,0 +1,49 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestLayoutFlexTableAllProjectColumnsVisible(t *testing.T) {
+	cols := model.BuildColumns(model.SubjectProjects, nil)
+	flex, ok := model.TableFlexLayoutFor(model.SubjectProjects)
+	if !ok {
+		t.Fatal("expected flex layout for projects")
+	}
+	lay := layoutFlexTable(cols, 80, flex.FlexColumnKey, flex.MinFlexWidth)
+	if len(lay.indices) != 7 {
+		t.Fatalf("got %d visible columns, want 7", len(lay.indices))
+	}
+	sum := 0
+	for _, i := range lay.indices {
+		sum += lay.widths[i]
+	}
+	if sum != 80 {
+		t.Fatalf("width sum=%d want 80", sum)
+	}
+}
+
+func TestLayoutFlexTableUserEmailAbsorbsWidth(t *testing.T) {
+	cols := model.BuildColumns(model.SubjectUsers, nil)
+	flex, ok := model.TableFlexLayoutFor(model.SubjectUsers)
+	if !ok {
+		t.Fatal("expected flex layout for users")
+	}
+	lay := layoutFlexTable(cols, 100, flex.FlexColumnKey, flex.MinFlexWidth)
+	sum := 0
+	emailW := 0
+	for _, i := range lay.indices {
+		sum += lay.widths[i]
+		if cols[i].Key == "email" {
+			emailW = lay.widths[i]
+		}
+	}
+	if sum != 100 {
+		t.Fatalf("sum=%d want 100", sum)
+	}
+	if emailW < 20 {
+		t.Fatalf("email width=%d should absorb remainder", emailW)
+	}
+}

cmd/office/ui/table_projects.go

@@ -0,0 +1,48 @@
+package ui
+
+import (
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func (t *DataTable) projectBaseStyle(item model.Item) lipgloss.Style {
+	if model.ProjectIsOpen(item.Raw) {
+		return lipgloss.NewStyle().
+			Background(lipgloss.Color("235")).
+			Foreground(lipgloss.Color("108"))
+	}
+	return lipgloss.NewStyle().
+		Background(lipgloss.Color("238")).
+		Foreground(lipgloss.Color("252"))
+}
+
+func (t *DataTable) projectCellStyle(row, col int, colKey string, selected bool, item model.Item) lipgloss.Style {
+	isRow := row == t.cursorRow
+	isCol := col == t.cursorCol
+	isCell := t.focused && isRow && isCol
+
+	switch {
+	case selected && isCell:
+		return t.styles.cellSelect
+	case selected && isRow:
+		return t.styles.rowSelect
+	case selected:
+		return t.styles.rowSelect
+	case isCell:
+		return t.styles.cellActive
+	case t.focused && (isRow || isCol):
+		return t.projectStatusStyle(colKey, item, t.projectBaseStyle(item))
+	default:
+		return t.projectStatusStyle(colKey, item, t.projectBaseStyle(item))
+	}
+}
+
+func (t *DataTable) projectStatusStyle(colKey string, item model.Item, base lipgloss.Style) lipgloss.Style {
+	if colKey != "status" {
+		return base
+	}
+	if model.ProjectIsOpen(item.Raw) {
+		return base.Foreground(lipgloss.Color("42")).Bold(true)
+	}
+	return base.Foreground(lipgloss.Color("245"))
+}

cmd/office/ui/table_render.go

@@ -0,0 +1,49 @@
+package ui
+
+import (
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/x/ansi"
+	"github.com/mattn/go-runewidth"
+)
+
+// renderTableCell renders one column using the bubbles/table pattern:
+// truncate plain text, constrain with an inline inner box, then apply the outer style.
+func renderTableCell(outer lipgloss.Style, text string, width int) string {
+	if width < 1 {
+		width = 1
+	}
+	frame := outer.GetHorizontalFrameSize()
+	innerW := width - frame
+	if innerW < 1 {
+		innerW = 1
+	}
+	truncated := runewidth.Truncate(text, innerW, "…")
+	inner := lipgloss.NewStyle().Width(innerW).MaxWidth(innerW).Inline(true)
+	return outer.Render(inner.Render(truncated))
+}
+
+// padANSIWidth pads or truncates a styled line without breaking ANSI sequences.
+func padANSIWidth(line string, width int) string {
+	if width < 1 {
+		return ""
+	}
+	w := ansi.StringWidth(line)
+	if w > width {
+		return ansi.Truncate(line, width, "")
+	}
+	if w < width {
+		return line + repeatSpace(width-w)
+	}
+	return line
+}
+
+func repeatSpace(n int) string {
+	if n <= 0 {
+		return ""
+	}
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = ' '
+	}
+	return string(b)
+}

cmd/office/ui/table_render_test.go

@@ -0,0 +1,55 @@
+package ui
+
+import (
+	"regexp"
+	"strings"
+	"testing"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
+	"github.com/muesli/termenv"
+)
+
+func TestProjectTableHeaderFitsPaneWidth(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	for _, w := range []int{68, 50, 40, 30} {
+		tbl := newDataTable()
+		tbl.SetSize(w, 10)
+		tbl.SetData(model.ListSpec{Subject: model.SubjectProjects}, []model.Item{
+			{ID: "1", Title: "Alpha", Kind: model.KindProject, Raw: map[string]any{"status": 0}},
+		})
+		tbl.SetFocused(true)
+		re := regexp.MustCompile(`\x1b\[[0-9;]*m`)
+		header := tbl.renderHeader()
+		got := runewidth.StringWidth(re.ReplaceAllString(header, ""))
+		if got != w {
+			t.Fatalf("width=%d header display width=%d", w, got)
+		}
+		view := tbl.View()
+		line0 := strings.Split(strings.TrimSuffix(view, "\n"), "\n")[0]
+		gotView := runewidth.StringWidth(re.ReplaceAllString(line0, ""))
+		if gotView < w-1 || gotView > w+1 {
+			t.Fatalf("width=%d view header width=%d", w, gotView)
+		}
+	}
+}
+
+func TestPadANSIWidthPreservesStyledLine(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	line := lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("255")).Render("ID")
+	padded := padANSIWidth(line, 10)
+	re := regexp.MustCompile(`\x1b\[[0-9;]*m`)
+	if runewidth.StringWidth(re.ReplaceAllString(padded, "")) != 10 {
+		t.Fatalf("expected padded width 10, got %q", padded)
+	}
+	if !strings.Contains(padded, "ID") {
+		t.Fatalf("padding must not destroy cell text: %q", padded)
+	}
+}

cmd/office/ui/table_test.go

@@ -0,0 +1,290 @@
+package ui
+
+import (
+	"regexp"
+	"strings"
+	"testing"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
+	"github.com/muesli/termenv"
+)
+
+func sampleItems() []model.Item {
+	return []model.Item{
+		{ID: "2", Title: "Bravo", Subtitle: "b", Kind: model.KindTask, Raw: map[string]any{"status": "Open"}},
+		{ID: "1", Title: "Alpha", Subtitle: "a", Kind: model.KindTask, Raw: map[string]any{"status": "Done"}},
+	}
+}
+
+func TestDataTableSortByTitle(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(80, 12)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, sampleItems())
+	tbl.cursorCol = indexOfColumn(tbl, "title")
+	tbl.ToggleSort()
+	if model.CellText(tbl.items[tbl.order[0]], "title") != "Alpha" {
+		t.Fatalf("expected Alpha first after sort, order=%v", tbl.order)
+	}
+}
+
+func TestDataTableMoveColScrolls(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(24, 10)
+	items := make([]model.Item, 1)
+	items[0] = model.Item{ID: "1", Title: "One", Raw: map[string]any{
+		"alpha": "a", "beta": "b", "gamma": "c", "delta": "d",
+	}}
+	tbl.SetData(model.ListSpec{Subject: model.SubjectContacts}, items)
+	last := len(tbl.columns) - 1
+	tbl.cursorCol = last
+	tbl.ensureColVisible()
+	if tbl.colScroll == 0 && last > 2 {
+		t.Fatalf("expected horizontal scroll for wide table, colScroll=%d", tbl.colScroll)
+	}
+}
+
+func TestDataTableViewHighlightsActiveCell(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(80, 12)
+	tbl.SetFocused(true)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, sampleItems())
+	tbl.cursorRow = 1
+	tbl.cursorCol = 2
+	view := tbl.View()
+	if !strings.Contains(view, "Alpha") {
+		t.Fatal("view missing row data")
+	}
+	if !strings.Contains(view, "Title") {
+		t.Fatal("view missing header")
+	}
+}
+
+func TestDataTableFillsPaneWidth(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(80, 12)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, sampleItems())
+	indices, widths := tbl.visibleLayout()
+	sum := 0
+	for _, i := range indices {
+		sum += widths[i]
+	}
+	if sum != 80 {
+		t.Fatalf("visible columns width sum=%d want 80", sum)
+	}
+}
+
+func TestDistributeColumnWidthsFillsTotal(t *testing.T) {
+	cols := []model.TableColumn{
+		{Key: "_sel", Width: 3},
+		{Key: "id", Width: 10},
+		{Key: "title", Width: 20},
+	}
+	indices := []int{0, 1, 2}
+	w := distributeColumnWidths(33, 80, indices, cols)
+	sum := w[0] + w[1] + w[2]
+	if sum != 80 {
+		t.Fatalf("sum=%d want 80", sum)
+	}
+	if w[2] <= 20 {
+		t.Fatalf("title should expand, got %d", w[2])
+	}
+}
+
+func TestProjectTableTitleAbsorbsWidth(t *testing.T) {
+	cols := model.BuildColumns(model.SubjectProjects, nil)
+	flex, ok := model.TableFlexLayoutFor(model.SubjectProjects)
+	if !ok {
+		t.Fatal("expected flex layout")
+	}
+	lay := layoutFlexTable(cols, 120, flex.FlexColumnKey, flex.MinFlexWidth)
+	if len(lay.indices) != len(cols) {
+		t.Fatalf("expected all %d columns visible, got %d", len(cols), len(lay.indices))
+	}
+	sum := 0
+	titleW := 0
+	fixedSum := 0
+	titleIdx := indexOfColumnKey(cols, "title")
+	for _, i := range lay.indices {
+		sum += lay.widths[i]
+		if i == titleIdx {
+			titleW = lay.widths[i]
+			continue
+		}
+		fixedSum += lay.widths[i]
+	}
+	if sum != 120 {
+		t.Fatalf("sum=%d want 120", sum)
+	}
+	if titleW != 120-fixedSum {
+		t.Fatalf("title width=%d want remainder %d", titleW, 120-fixedSum)
+	}
+	if titleW < 40 {
+		t.Fatalf("title should absorb extra width, got %d", titleW)
+	}
+}
+
+func TestProjectTableFillsPaneWidth(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(80, 12)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectProjects}, []model.Item{
+		{ID: "1", Title: "Alpha", Kind: model.KindProject, Raw: map[string]any{"status": 0}},
+	})
+	indices, widths := tbl.visibleLayout()
+	if len(indices) != len(tbl.columns) {
+		t.Fatalf("expected all columns visible, got %d/%d", len(indices), len(tbl.columns))
+	}
+	sum := 0
+	for _, i := range indices {
+		sum += widths[i]
+	}
+	if sum != 80 {
+		t.Fatalf("visible columns width sum=%d want 80", sum)
+	}
+}
+
+func TestProjectRowRenderWidth(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	tbl := newDataTable()
+	tbl.SetSize(120, 20)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectProjects}, []model.Item{
+		{ID: "abc12345", Title: "My Project Title", Kind: model.KindProject, Raw: map[string]any{"status": 0}},
+	})
+	re := regexp.MustCompile(`\x1b\[[0-9;]*m`)
+	_, widths := tbl.visibleLayout()
+	want := 0
+	for _, w := range widths {
+		want += w
+	}
+	row := re.ReplaceAllString(tbl.renderRow(0), "")
+	got := runewidth.StringWidth(row)
+	if got < want-2 || got > want+2 {
+		t.Fatalf("row display width=%d want ~%d", got, want)
+	}
+}
+
+func TestProjectRowStaysSingleLineWhenSelected(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	long := strings.Repeat("X", 200)
+	tbl := newDataTable()
+	tbl.SetSize(120, 20)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectProjects}, []model.Item{
+		{ID: "1", Title: long, Kind: model.KindProject, Raw: map[string]any{"status": 0}, Selected: true},
+	})
+	if strings.Contains(tbl.renderRow(0), "\n") {
+		t.Fatal("selected project row must not wrap to multiple lines")
+	}
+}
+
+func TestProjectRowStyleUniformBackground(t *testing.T) {
+	prev := lipgloss.ColorProfile()
+	lipgloss.SetColorProfile(termenv.TrueColor)
+	t.Cleanup(func() { lipgloss.SetColorProfile(prev) })
+
+	tbl := newDataTable()
+	item := model.Item{Raw: map[string]any{"status": 0}}
+	base := tbl.projectBaseStyle(item)
+	titleStyled := tbl.projectStatusStyle("title", item, base).Render("Open Proj")
+	statusStyled := tbl.projectStatusStyle("status", item, base).Render(model.ProjectStatusCell(item.Raw))
+	if !strings.Contains(titleStyled, "\x1b[") {
+		t.Fatalf("title cell should be styled: %q", titleStyled)
+	}
+	if !strings.Contains(statusStyled, "\x1b[") {
+		t.Fatalf("status cell should be styled: %q", statusStyled)
+	}
+	if titleStyled == statusStyled {
+		t.Fatal("status and title cells should use different foreground styles")
+	}
+}
+
+func TestTruncateCellText(t *testing.T) {
+	long := strings.Repeat("x", 40)
+	got := truncateCellText(long, 10)
+	if runewidth.StringWidth(got) > 10 {
+		t.Fatalf("truncated width=%d want <=10", runewidth.StringWidth(got))
+	}
+	if !strings.HasSuffix(got, "…") {
+		t.Fatalf("expected ellipsis suffix, got %q", got)
+	}
+}
+
+func TestDataTableTruncatesNonSelectedRows(t *testing.T) {
+	long := strings.Repeat("A", 60)
+	items := []model.Item{
+		{ID: "1", Title: "Short"},
+		{ID: "2", Title: long},
+	}
+	tbl := newDataTable()
+	tbl.SetSize(50, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, items)
+	tbl.cursorRow = 0
+
+	if strings.Contains(tbl.renderRow(1), long) {
+		t.Fatal("non-cursor row should truncate long title")
+	}
+
+	tbl.cursorRow = 1
+	if !strings.Contains(tbl.renderRow(1), strings.Repeat("A", 10)) {
+		t.Fatal("cursor row should show title text within column")
+	}
+}
+
+func TestDataTableRowWidthMatchesColumns(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(80, 12)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, sampleItems())
+	tbl.SetFocused(true)
+	_, widths := tbl.visibleLayout()
+	want := 0
+	for _, w := range widths {
+		want += w
+	}
+	re := regexp.MustCompile(`\x1b\[[0-9;]*m`)
+	row := re.ReplaceAllString(tbl.renderRow(0), "")
+	got := runewidth.StringWidth(row)
+	if got < want-2 || got > want+2 {
+		t.Fatalf("row display width=%d want ~%d", got, want)
+	}
+}
+
+func TestDataTableShowsFullTextWhenSpaceSelected(t *testing.T) {
+	long := strings.Repeat("B", 60)
+	items := []model.Item{
+		{ID: "1", Title: "Short"},
+		{ID: "2", Title: long, Selected: true},
+	}
+	tbl := newDataTable()
+	tbl.SetSize(50, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, items)
+	tbl.cursorRow = 0
+
+	rowSelected := tbl.renderRow(1)
+	if !strings.Contains(rowSelected, strings.Repeat("B", 10)) {
+		t.Fatal("space-selected row should show title text within column")
+	}
+}
+
+func indexOfColumn(tbl DataTable, key string) int {
+	for i, c := range tbl.columns {
+		if c.Key == key {
+			return i
+		}
+	}
+	return 0
+}
+
+func indexOfColumnKey(cols []model.TableColumn, key string) int {
+	for i, c := range cols {
+		if c.Key == key {
+			return i
+		}
+	}
+	return 0
+}

cmd/oo/calendar.go

@@ -0,0 +1,116 @@
+package main
+
+import (
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+var calendarCmd = &cobra.Command{
+	Use:     "calendar",
+	Aliases: []string{"cal"},
+	Short:   "Calendars and events",
+}
+
+func init() {
+	rootCmd.AddCommand(calendarCmd)
+	calendarCmd.AddCommand(calListCmd())
+	calendarCmd.AddCommand(calEventsCmd())
+	calendarCmd.AddCommand(calAddCmd())
+	calendarCmd.AddCommand(calDeleteCmd())
+}
+
+func calListCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "list",
+		Short: "List calendars",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.ListCalendars(cmd.Context(), "", "")
+			if err != nil {
+				return err
+			}
+			printTable([]string{"objectId", "title", "textColor", "backgroundColor", "isEditable"}, out)
+			return nil
+		},
+	}
+}
+
+func calEventsCmd() *cobra.Command {
+	var start, end string
+	cmd := &cobra.Command{
+		Use:   "events",
+		Short: "List calendar events for a date range (default: next 7 days)",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			if start == "" || end == "" {
+				start = time.Now().Format("2006-01-02")
+				end = time.Now().AddDate(0, 0, 7).Format("2006-01-02")
+			}
+			out, err := c.ListEvents(cmd.Context(), start, end)
+			if err != nil {
+				return err
+			}
+			printTable([]string{"objectId", "title", "start", "end", "allDayLong"}, out)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&start, "start", "", "start date YYYY-MM-DD")
+	cmd.Flags().StringVar(&end, "end", "", "end date YYYY-MM-DD")
+	return cmd
+}
+
+func calAddCmd() *cobra.Command {
+	var cal, desc string
+	var allDay bool
+	cmd := &cobra.Command{
+		Use:   "add TITLE START END",
+		Short: "Add a calendar event",
+		Args:  cobra.ExactArgs(3),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			ev, err := c.AddEvent(cmd.Context(), cal, args[0], args[1], args[2], desc, allDay)
+			if err != nil {
+				return err
+			}
+			printObject(ev)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&cal, "calendar", "", "calendar id (default from env OO_CALENDAR_ID)")
+	cmd.Flags().StringVar(&desc, "description", "", "event description")
+	cmd.Flags().BoolVar(&allDay, "all-day", false, "mark as all-day event")
+	return cmd
+}
+
+func calDeleteCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "delete EVENT_ID [EVENT_ID...]",
+		Aliases: []string{"rm"},
+		Short:   "Delete one or more calendar events",
+		Args:    cobra.MinimumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			for _, id := range args {
+				out, err := c.DeleteEvent(cmd.Context(), id)
+				if err != nil {
+					return err
+				}
+				printObject(out)
+			}
+			return nil
+		},
+	}
+}

cmd/oo/cases.go

@@ -0,0 +1,111 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var casesCmd = &cobra.Command{
+	Use:     "cases",
+	Aliases: []string{"case"},
+	Short:   "CRM cases",
+}
+
+func init() {
+	rootCmd.AddCommand(casesCmd)
+	casesCmd.AddCommand(casesListCmd())
+	casesCmd.AddCommand(casesCreateCmd())
+	casesCmd.AddCommand(casesDeleteCmd())
+	casesCmd.AddCommand(casesMemberAddCmd())
+}
+
+func casesListCmd() *cobra.Command {
+	var count, offset int
+	cmd := &cobra.Command{
+		Use:   "list",
+		Short: "List CRM cases",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			list, total, err := c.ListCases(cmd.Context(), count, offset)
+			if err != nil {
+				return err
+			}
+			if outputFormat == "table" {
+				fmt.Printf("total: %d (shown: %d)\n", total, len(list))
+			}
+			printTable([]string{"id", "title", "isClosed", "created"}, list)
+			return nil
+		},
+	}
+	cmd.Flags().IntVar(&count, "count", 50, "")
+	cmd.Flags().IntVar(&offset, "offset", 0, "")
+	return cmd
+}
+
+func casesCreateCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "create TITLE",
+		Aliases: []string{"add"},
+		Short:   "Create a case",
+		Args:    cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.CreateCase(cmd.Context(), args[0])
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+}
+
+func casesDeleteCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "delete CASE_ID [CASE_ID...]",
+		Aliases: []string{"rm"},
+		Short:   "Delete one or more cases",
+		Args:    cobra.MinimumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			for _, id := range args {
+				out, err := c.DeleteCase(cmd.Context(), id)
+				if err != nil {
+					return err
+				}
+				printObject(out)
+			}
+			return nil
+		},
+	}
+}
+
+func casesMemberAddCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "member-add CASE_ID CONTACT_ID",
+		Short: "Attach a contact to a case",
+		Args:  cobra.ExactArgs(2),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			c, err := newOO(cmd)
+			if err != nil {
+				return err
+			}
+			out, err := c.AddCaseMember(cmd.Context(), args[0], args[1])
+			if err != nil {
+				return err
+			}
+			printObject(out)
+			return nil
+		},
+	}
+}