- Replace TinyDB (JSON file) with sqlite3 for data persistence
- Add schema.py: table creation + data migration from db.json
- Rewrite database.py: all CRUD operations use sqlite3 directly
- All data retains original IDs via migration script
- Remove tinydb dependency from pyproject.toml
- Complete tasks now displayed in scroll view alongside unfinished tasks
- Priority order: completed tasks first (by finished_time desc), then unfinished (by order asc)
- Time picker-style scroll: wheel scroll snaps per task, center item gets visual focus
- Landscape mode (>=1024px): scroll view + edit panel side by side, panel always visible
- Portrait mode: edit panel slides in from right on tap
- Fixed flex layout so scroll view and edit panel align perfectly in height
- Flask backend with TinyDB database
- Multi-user auth with bcrypt password hashing
- Goal CRUD with activation/deactivation and per-user limits
- Task CRUD with status tracking (todo/doing/pending/done)
- Focus rule: one doing task per goal
- Time picker-style scroll view with drag-and-drop reordering
- Admin panel for user management
- uv environment management
