Adds visibility resume emissions to the four managed state hooks (`useMeshState`, `useNodes`, `useProjects`, `useManagedDockerNodes`) and establishes corresponding instrumentation test coverage, with a documentation update to the diagnostics reference covering board hook telemetry.
Fusion-Task-Id: FN-5415
Removes the broad-scope detection feature end-to-end: the TaskCard chip and TaskDetailModal advisory banner are gone from the dashboard, the triage heuristic that flagged tasks as broad-scope has been deleted from the engine along with its associated run-audit events, and documentation references ha
Fusion-Task-Id: FN-5405
The merge adds a post-completion defensive backstop that probes and removes stale same-task `activeSessionRegistry` entries on `done`/`archived` transitions, completing FN-5346 with a shared reconcile helper, a defensive ownership probe wired into paused cleanup, audit event alignment, and regressio
Fusion-Task-Id: FN-5346
FN-5389 adds dashboard resume event instrumentation: a `resumeInstrumentation` utility captures SSE resume signals, wired through `useChat`, `useChatRooms`, and `useTasks` hooks, with remount markers in `Board` and `ChatView`; diagnostics routes expose resume events for observability, documented in
Fusion-Task-Id: FN-5389
The merge introduces an engine-activation timestamp as the staleness floor for task age calculations, replacing arbitrary wall-clock thresholds with a runtime-relative anchor. Step 1 adds settings defaults, Steps 2–4 wire the floor helper through project engine, in-process runtime, and task store hy
Fusion-Task-Id: FN-5223
The merge fixes a stale cache-miss path in the heartbeat executor and adds `reports-health` diagnostics for cache-state reporting, with a regression test covering a sparse-cache false-positive scenario. It also adds a two-line tweak to the merger and updates the diagnostics documentation.
Fusion-Task-Id: FN-5362
