Apply useMemo to hook returns that create new object references on each
render. This prevents downstream useEffect/useCallback dependencies from
detecting false changes and triggering re-execution.
Fixed hooks:
- PrivacyProvider: memoize context value and toggle callback
- useCopilot: wrap large return object with all dependencies
- useWebSocket: memoize status/connect/disconnect object
- useProjectSelection: memoize state and handlers object
- useCliproxyAuthFlow: memoize spread state with auth functions
- useAnalyticsPage: memoize apiOptions to stabilize query params
- split analytics.tsx (420 lines) into modular components
- extract analytics-header, charts-grid, cost-by-model-card
- add analytics-skeleton for loading states
- separate hooks, types, and utils
Tam Nhu Tran