- Add SyncEngine for background sync between local SQLite cache and
remote API with pending_ops queue for offline resilience
- Refactor MCP server to support three modes: SQLite-only, hybrid
(local cache + sync, new default), and HTTP-only (legacy)
- Add GET /api/memories/sync endpoint for incremental sync
- Change DELETE to soft delete (set deleted_at) for sync support
- Add deleted_at IS NULL filters to all read queries
- Scale API deployment to 2 replicas with pod anti-affinity, PDB,
and startup probe for high availability
- Add migration 003 for deleted_at column and updated_at index
- Add comprehensive tests for sync engine and API sync endpoint
- API recall and list endpoints now return {"memories": [...]} matching
the format expected by the MCP server
- Rewrote README with comprehensive setup instructions for new agents,
accurate API reference, migration docs, and multi-user setup guide
Replace inline migration logic with proper Alembic migrations:
- 001: Initial schema (creates memories table with FTS)
- 002: Add multi-user and secrets columns (user_id, is_sensitive,
vault_path, encrypted_content)
Migrations run automatically on app startup. Existing databases
are handled gracefully with IF NOT EXISTS / column existence checks.
