Add preprocess-only silhouette export and configurable result exporters so demo runs can be persisted for offline analysis and reproducible evaluation. Include optional parquet support and CLI visualization dumps while updating tests and tracking notes for the verified pipeline/debug workflow.
Introduce focused unit, integration, and NATS-path tests for demo modules, and align assertions with final schema and temporal contracts (window int, seq=30, fill-level ratio). This commit isolates validation logic from runtime changes and provides reproducible QA for pipeline behavior and failure modes.
crosstyan