- Fix runner label: ubuntu-24.04 → docker-host - Add npm cache for faster installs - Remove PostgreSQL service (not needed for unit tests) - Keep Vitest unit tests (fast logic tests) - Remove Playwright E2E tests (too slow for CI, run locally) - Remove unnecessary database setup step Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>