- Reset memory backend status to unresolved during fetches so stale capabilities are never treated as authoritative
- Gate MemoryView read-only and qmd warning states on resolved backend status and add an explicit checking state for qmd availability
- Update SettingsModal memory editor gating so writes remain enabled while backend status is still loading, then enforce resolved read-only state
- Expand dashboard tests for useMemoryBackendStatus, MemoryView, and SettingsModal to lock in loading, warning, and refresh behavior
- Add /api/memory/backend endpoint returning current backend, capabilities, and available backends
- Create useMemoryBackendStatus hook with polling and frontend-friendly interface
- Add MemorySettingsSection to SettingsModal with backend selector dropdown
- Implement capability-aware UI: readonly backends disable save, fallback on unknown types
- Add comprehensive tests for API endpoints and hook behavior
- Update architecture docs with memory backend architecture section
