2 Commits

Author	SHA1	Message	Date
alexei.dolgolyov	9dfd2365f4	feat: migrate storage from JSON files to SQLite ... 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)	2026-03-25 00:03:19 +03:00
alexei.dolgolyov	c26aec916e	feat: add gradient entity with CRUD API and storage ... Reusable gradient definitions with built-in presets (rainbow, sunset, ocean, etc.) and user-created gradients. Includes model, JSON store, Pydantic schemas, REST routes (list/create/update/clone/delete), and backup/restore integration.	2026-03-24 13:58:04 +03:00