feat(office): users admin UI, table rendering, and user save fixes

Add Users list/detail with ACL toggles and library people update/status APIs.
Fix project table layout and ANSI-safe cell rendering, and decode array
responses from people/status so saves no longer fail on JSON unmarshal.

Co-authored-by: Cursor <cursoragent@cursor.com>

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")
+	}
+}