Adds a fallback retry counter to the reviewer that resets on successful step completion, preventing premature escalation when earlier steps exhaust retries while later ones succeed; also aligns dashboard trace buffer types and adds comprehensive coverage for the reset semantics.
Fusion-Task-Id: FN-5435
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