feat: initial E2E bugfix-proof toolkit
Universal toolkit for E2E testing with visual proof artifacts:
- Evidence fixture (banner, highlight, timeline, video)
- Playwright config template (slowMo, video on, artifacts)
- Global setup template (auth patterns)
- Example test spec
- Bugfix verification dashboard (FastAPI + Jinja2)
- Strategy doc and Claude instructions
Co-Authored-By: Claude Opus 4.6 (1M context) noreply@anthropic.com