- Change enter_edit_mode to take Entry by value instead of reference
- Optimize TextArea initialization with TextArea::from() for message
- Reduce clone operations in navigation paths (detail.rs, list.rs, actions/mod.rs)
- Remove duplicate dead code from list.rs edit conflict
- Fix syntax error (extra } in state.rs)
- All 78 tests pass, clean clippy output
- Created actions/ module with save, load, delete business logic
- Created inputs/keycodes.rs with 30+ keybinding helper functions
- Separated business logic from UI/event handling
- Added 28 new unit tests and 8 integration tests
- Fixed bug: save now requires ctrl+s not just 's'
- Reduced ui/mod.rs from 618 to ~290 lines total