Refactored the storage system to use a unified SQLite database for both
webhook tracking and OAuth token storage, available in both BasicAuth
and OAuth modes.
Changes:
- Renamed refresh_token_storage.py → storage.py
- Made TOKEN_ENCRYPTION_KEY optional (only required for OAuth token ops)
- Added registered_webhooks table with schema versioning
- Added webhook storage methods (store, get, delete, list, clear)
- Initialize storage in both BasicAuth and OAuth modes
- Updated webhook routes to persist registrations in database
- Database-first pattern for webhook status checks (performance)
- Updated all imports across codebase
Storage Behavior:
- Database created automatically at startup if needed
- Existing databases detected and reused
- Server fails fast if database initialization fails
- No migrations needed (OAuth feature is experimental)
Testing:
- Added 13 comprehensive unit tests for webhook storage
- All 118 unit tests pass
- All 5 smoke tests pass
- Verified fail-fast behavior on initialization errors
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>