refactor!: rename oo-cli → oo, split library by domain, relocate applications

BREAKING:
- Binary renamed oo-cli → oo; install path is now
  github.com/eslider/go-onlyoffice/cmd/oo.
- Former internal/cli tree removed; cobra commands live in cmd/oo/ as
  package main, split by domain (calendar.go, crm.go, tasks.go, apps.go,
  common.go, main.go).
- internal/applications moved to cmd/oo/applications/ (CV-specific workflow;
  not a library feature).
- examples/applications removed (it depended on an internal package).

Library split (mechanical, zero API surface change):
- client.go  — Client, Credentials, Defaults, env helpers, NewClient.
- request.go — Request, Query, Time, Token, MetaResponse, Permissions.
- auth.go    — Authenticate/AuthenticateContext/InvalidateToken.
- http.go    — transport + ResponseArray/ResponseObject/postFormObject/
               putFormObject/deleteObject/unmarshalResponseObject (renamed
               from httpx.go).
- projects.go, tasks.go, users.go, calendar.go, crm.go, files.go — typed
  / untyped domain methods. tasks_extra.go merged into tasks.go.
- onlyoffice.go deleted (content redistributed).

AGENTS.md, CHANGELOG.md, README.md updated accordingly.

Made-with: Cursor

cmd/oo/applications/parse_test.go

@@ -0,0 +1,53 @@
+package applications
+
+import "testing"
+
+func TestExtractField(t *testing.T) {
+	text := "**Position**: Senior Dev\n**Company**: Acme\n"
+	if g := extract(text, `(?i)\*\*Position\*\*:\s*(.+?)(?:\s{2,}|\n)`); g != "Senior Dev" {
+		t.Fatalf("position: %q", g)
+	}
+	if g := extract(text, `(?i)\*\*Company\*\*:\s*(.+?)(?:\s{2,}|\n)`); g != "Acme" {
+		t.Fatalf("company: %q", g)
+	}
+}
+
+func TestParseSalary(t *testing.T) {
+	if v := parseSalary("€50,000"); v < 40000 {
+		t.Fatalf("annual: %v", v)
+	}
+	if v := parseSalary("400 / day"); v != 400*220 {
+		t.Fatalf("daily: %v", v)
+	}
+}
+
+// TestBuildSummaryFitAssessment covers the RE2-safe replacement of a previously
+// lookahead-based regex that would panic at MustCompile time on Go regexp.
+func TestBuildSummaryFitAssessment(t *testing.T) {
+	app := Data{Position: "SRE", Company: "Acme", Folder: "/tmp"}
+	withNextSection := "## Fit Assessment\nGreat fit overall.\nStrong background.\n## Next section\nUnrelated."
+	summary := buildSummary(app, withNextSection)
+	if !contains(summary, "Fit Assessment:") {
+		t.Fatalf("missing header in summary:\n%s", summary)
+	}
+	if !contains(summary, "Great fit overall.") {
+		t.Fatalf("missing body in summary:\n%s", summary)
+	}
+	if contains(summary, "Unrelated.") {
+		t.Fatalf("bled into next section:\n%s", summary)
+	}
+	eof := "## Fit Assessment\nOnly content at EOF."
+	summary = buildSummary(app, eof)
+	if !contains(summary, "Only content at EOF.") {
+		t.Fatalf("EOF case missing body:\n%s", summary)
+	}
+}
+
+func contains(haystack, needle string) bool {
+	for i := 0; i+len(needle) <= len(haystack); i++ {
+		if haystack[i:i+len(needle)] == needle {
+			return true
+		}
+	}
+	return false
+}