feat(memory): propagate temporal validity fields through extraction pipeline

- Add valid_at/invalid_at passthrough in triplet extraction prompt (both zh/en)
- Propagate temporal_validity to EntityEntityEdge in ExtractionOrchestrator
- Use coalesce() for valid_at/invalid_at in Neo4j cypher queries to handle NULLs
- Fix workspace_id/config_id UUID parsing in read_memory config resolution
- Downgrade verbose extraction pipeline logs from info to debug
- Remove UUID and short API key patterns from sensitive filter to reduce false positives
- Standardize log message format (use = spacing, end_user_id label)
- Fix misindented TODO comment in write_pipeline.py

api/app/repositories/ontology_class_repository.py

@@ -227,7 +227,7 @@ class OntologyClassRepository:
             ).all()
             
             logger.info(
-                f"Found {len(classes)} ontology classes in scene {scene_id}"
+                f"Found {len(classes)} ontology classes in scene_id: {scene_id}"
             )
             
             return classes