- Add authentication middleware with API key validation
- Add request logging middleware for observability
- Add audit logging middleware for admin operations
- Refactor API endpoints to use centralized auth middleware
- Add comprehensive unit tests for all middleware
- Add API documentation and deployment guide
- Update README with health endpoints and documentation links
- Fix test data isolation in router tests
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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