Adds a new pi extension that reconciles droid CLI paths, with corresponding staging support in the tsup build config for bundling the droid-cli. The extension is wired into the engine and exported from core, with tests covering the path reconciliation logic.
Fusion-Task-Id: FN-2985
- Persist hidden usage-window IDs in project storage so visibility choices survive reloads
- Add hide/show actions in UsageIndicator rows plus a provider-level control to reveal hidden windows
- Style hidden window rows and usage header actions in PlanningModeModal for clear state and aligned controls
- Expand UsageIndicator and projectStorage tests to cover hide/show behavior and persistence callbacks
- Rename core loader, dashboard server chat/planning routes, and frontend agent IDs/storage keys from kb-agent to fn-agent naming
- Update dashboard hooks and components (agent list, chat view, quick chat) to use the new fn agent key prefixes consistently
- Refresh engine, dashboard, core, and CLI tests/mocks to remove remaining kb-agent route and temp prefix references
- Update storage/gap-analysis docs to reflect fn agent key names and add a @gsxdsm/fusion patch changeset for the rename
- Add lastMessagePreview field to ChatSession to show message previews in session list
- Restore active session state on component remount via stored lastSessionId
- Add chat routes for session management (create, list, read, update/delete)
- Add tests for useChat hook, chat store, and chat routes
- Remove unused serveCommand assignment in serve.ts command
- Add a project storage utility with scoped key helpers and key inventories for global vs project state
- Scope dashboard/task view, list preferences, quick-entry drafts, agent/tree state, terminal tabs, usage view, and modal draft persistence to projectId
- Reload persisted UI state when project context changes so per-project settings and drafts do not leak across projects
- Update and expand dashboard tests, including new projectStorage coverage and scoped persistence regression fixes
