Created comprehensive TODO classification document:
- Classified 34 TODOs into Must Ship (7), Nice-to-Have (2), Future (19), Stubs (3)
- Identified critical items: rolling window logic, TTL validation, database operations
- Documented Phase 2/3 deferred features
- All TODOs are in iOS code (Android has 0)
Next steps:
- Create GitHub issues for 7 Must Ship items
- Document Phase 2 features in planning doc
- Update code comments with issue links
Verification:
- All 34 TODOs classified ✅
- Critical items identified ✅
