- Infrastructure (DB/MinIO) blocks readiness; imports are diagnostic only
- Per-source community scheduler health with backoff detection
- Stale/failed imports never block /ready — scheduler can recover them
- Add 'blocking: false' to all import components
- 4 new tests: per-source health, backoff detection, stale/failed non-blocking
- 108 Python tests pass
- Add 'ready = ready and healthy' for community_scheduler check
- Add 'ready = False' for community_scheduler exception path
- Add 3 unit tests: success=ready, stale=not_ready, failed=not_ready
- Monitoring now correctly reports community import health
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