- types.ts: consolidate NoteDoc, WorkspaceDoc, NoteAgentActionDoc etc. from client files
- notes-client.ts: import from types.ts, optimize getNoteDetail with direct GET /notes/:id
- review-client.ts: import from types.ts, use /note-agent-actions/pending (eliminates N+1)
- notes-client.ts: use /workspaces/summaries (eliminates fetch-all-notes for counts)
- backend: add GET /workspaces/summaries with noteCount per workspace
- backend: add GET /note-agent-actions/pending (cross-workspace)
- backend: add countNotesByWorkspaces + listPendingActions repository functions
- Add createNote, archiveNote, restoreNote, createNoteRelationship client functions
- Fix existing tests for new route counts and mock order
ee586065dd