Collects the five post-run diagnostic + escalation modules into src/main/worker/observability/: run_events persistence, stdout/stderr noise filter, credential-shape log redactor, self-wake circuit breaker, and retry-aware failure escalation pipeline. circuit-breaker.ts and failure-escalation.ts remain as standalone files inside the directory — each owns a distinct state machine that deserves its own boundary — rather than collapsing into a single index.ts. handlers/*.ts and tests/unit/*.test.ts updated to point at the new paths.
- Add MAX_RETRY_ATTEMPTS (2) and RETRY_COOLDOWN_MS (30s) constants
- Replace immediate escalation with retry-then-escalate logic
- Escalation chain: retry same agent -> manager -> CEO -> user notification
- Reset retry count on successful task completion
- Update Reassign on run failure automation rule with afterRetryExhaustion condition
- Add comprehensive unit tests for escalation state machine (11 tests)