- Add warm, cool, neon, pastel built-in gradients (promoted from frontend presets)
- Change gradient seeding to add missing built-ins on every startup (not just first run)
- Add searchable option to IconSelect component for filtering by name
- Enable search on gradient, effect palette, and audio palette pickers
- Simplify modal titles: "Add Gradient" / "Edit Gradient" instead of "Add Color Strip Source: Gradient"
- Update INSTALLATION.md and .env.example
_save_all() in BaseSqliteStore did DELETE FROM table + INSERT all in-memory items
on every shutdown. Since SQLite stores use write-through caching (every CRUD writes
immediately), this was redundant. Worse, if in-memory state had fewer items than
the DB, the DELETE wiped rows and only partial data was reinserted.
- Make _save_all() a no-op (DB is always up to date via write-through)
- Replace self._save() with self._save_item() in 6 seed/default creation methods
- Remove _save_all_stores() shutdown hook (replaced with log-only message)
Replace 22 individual JSON store files with a single SQLite database
(data/ledgrab.db). All entity stores now use BaseSqliteStore backed by
SQLite with WAL mode, write-through caching, and thread-safe access.
- Add Database class with SQLite backup/restore API
- Add BaseSqliteStore as drop-in replacement for BaseJsonStore
- Convert all 16 entity stores to SQLite
- Move global settings (MQTT, external URL, auto-backup) to SQLite
settings table
- Replace JSON backup/restore with SQLite snapshot backups (.db files)
- Remove partial export/import feature (backend + frontend)
- Update demo seed to write directly to SQLite
- Add "Backup Now" button to settings UI
- Remove StorageConfig file path fields (single database_file remains)
