[Tracking] AI-friendly tooling

[hi-ogawa]

Scope

• feat: add an official skill #10275 Official skill (draft PR)
  • organize as single skill + internal references
    • skills/vitest/SKILL.md
    • skills/vitest/references/migrate-from-jest.md.
  • shipped through github repo (e.g. npx skills vitest-dev/vitest)
  • migration topics
• MCP server for test results and coverage #8411 MCP server for test results and coverage.
• New JSON reporter #7586 New JSON reporter.
• Trace view data integration — make trace data consumable by agents. Builds on the broader trace follow-ups in Browser mode trace view follow-ups #10156.