- Create docs/TESTING.md with full testing documentation
- Document 3 flaky test suites with exact locations and workarounds
- Update README.md with accurate test status (~348-349 passing)
- Add troubleshooting guide for race conditions
- Include CI/CD considerations and future improvements
Key sections:
- Running tests (commands, environment, configuration)
- Flaky tests: matching-algorithm, ratings-stats-flow, events
- Known issues & fixes applied (migrations, constraints, config)
- Debugging strategies and test isolation tips
