docs(dashboard): add documentation for dashboard and widget commands

[betegon]

Summary

• Add docs/src/content/docs/commands/dashboard.md covering all dashboard commands
• Documents dashboard list, view, create, and widget add, edit, delete
• Includes arguments/options tables, query/sort shorthand reference, and example output
• Regenerated skill reference files to include doc examples

Test plan

• Docs render correctly in Starlight (sidebar auto-discovers the new page)
• Skill generation picks up examples from the docs

🤖 Generated with Claude Code

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Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

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Entries from this PR are highlighted with a left border (blockquote style).

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New Features ✨

Telemetry

• Include user email in Sentry telemetry context by BYK in #513
• Track TTY vs non-TTY invocations via metric by betegon in #482

Other

• (dashboard) Add widget add, edit, and delete commands by betegon in #407
• (help) Fuzzy "Did you mean?" suggestions for command typos by BYK in #516
• (upgrade) Add progress spinners for version check and download phases by BYK in #515
• Dynamic cache-backed shell completions with fuzzy matching by BYK in #465

Bug Fixes 🐛

• (completions) Populate project cache from listProjects by betegon in #517
• (help) Hide ASCII banner when stdout is not a TTY by betegon in #501
• (json) Flatten view command JSON output for --fields filtering by BYK in #495
• (polling) Throw TimeoutError instead of bare Error on timeout by BYK in #503
• (project) Fallback to org listing when bare slug matches an organization by betegon in #475
• (setup) Auto-configure zsh fpath for shell completions by betegon in #509
• Isolate multiregion 403 tests from env-var auth tokens by BYK in #514
• Only mention token scopes in 403 errors for env-var tokens by BYK in #512
• Suggest similar projects on project-search miss (CLI-A4) by BYK in #511
• Preserve ApiError type in Seer handler + suggest trial start command (CLI-N, CLI-1D/BW/98) by BYK in #510
• Add 403 scope guidance to issue list error handling (CLI-97) by BYK in #508
• Propagate 403 from multi-region fan-out instead of returning empty list (CLI-89) by BYK in #507
• Lowercase project slug in URL-parsed issue short IDs (CLI-C8 follow-up) by BYK in #506
• Handle EIO stream errors gracefully in bin.ts by BYK in #505
• Use fuzzyMatch for similar project suggestions and add tests (CLI-C0) by BYK in #504
• Use resolved org in numeric issue ID 404 hint (CLI-BT) by BYK in #502
• Include API endpoint in error messages for better diagnostics (CLI-BS) by BYK in #500
• Enrich 403 on org listing with token scope guidance (CLI-89) by BYK in #498
• Add 400 suggestions to org-all issue list path (CLI-BY) by BYK in #497
• Lowercase project slug in issue arg parsing (CLI-C8) by BYK in #496
• Enrich short ID 404 with org context and suggestions (CLI-A1) by BYK in #494
• Suggest similar projects when project not found in org (CLI-C0) by BYK in #493
• Event 404 hint should suggest different project, not repeat failing command by BYK in #492
• Enrich event 404 errors with retention and format suggestions (CLI-6F) by BYK in #491
• Add actionable suggestions for 400 Bad Request on issue list (CLI-BM, CLI-7B) by BYK in #489
• Detect issue short IDs passed to issue list (CLI-C3) by BYK in #488
• Add Glob.match() polyfill + improve auto-detect diagnostics (CLI-7T) by BYK in #487
• Add org-slug pre-check to dispatchOrgScopedList (CLI-9A) by BYK in #485

Documentation 📚

• (dashboard) Add documentation for dashboard and widget commands by betegon in #520

Internal Changes 🔧

• (issue) Skip getProject round-trip in project-search resolution by betegon in #473
• (resolve) Carry project data through resolution to eliminate redundant getProject calls by BYK in #486
• (telemetry) Convert is_tty metric to span tag by betegon in #499
• HTTP latency optimizations — diagnostics, cache warming, concurrency limits by BYK in #490
• Switch from @sentry/bun to @sentry/node-core/light (~170ms startup savings) by BYK in #474
• Regenerate skill files by github-actions[bot] in b7b240ec

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Codecov Results 📊

✅ 126 passed | Total: 126 | Pass Rate: 100% | Execution Time: 0ms

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 1075 uncovered lines.
✅ Project coverage is 95.78%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
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+ Coverage    95.78%    95.78%        —%
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  Files          184       184         —
  Lines        25502     25502         —
  Branches         0         0         —
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+ Hits         24427     24427         —
- Misses        1075      1075         —
- Partials         0         0         —

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