refactor: remove db.commit() from business services, callers use UnitOfWork (Tier 3)

backend/app/services/osint_enrichment_service.py

@@ -181,12 +181,10 @@ def get_osint_items_for_technique(
 
 
 def mark_osint_reviewed(db: Session, item_id: str) -> OsintItem | None:
-    """Mark an OSINT item as reviewed."""
+    """Mark an OSINT item as reviewed. Does not commit; caller uses UnitOfWork."""
     item = db.query(OsintItem).filter(OsintItem.id == item_id).first()
     if item:
         item.reviewed = True
-        db.commit()
-        db.refresh(item)
     return item
 
 

backend/app/services/scoring_config_service.py

@@ -82,9 +82,7 @@ def update_scoring_weights(
     row.weight_freshness = new.freshness
     row.weight_platform_diversity = new.platform_diversity
 
-    db.commit()
-    db.refresh(row)
-
+    # Does not commit; caller (router) uses UnitOfWork.
     return _weights_dict(new)
 
 

backend/app/services/worklog_service.py

@@ -39,8 +39,7 @@ def create_worklog(
     )
     wl.integrity_hash = _compute_hash(wl)
     db.add(wl)
-    db.commit()
-    db.refresh(wl)
+    # Does not commit; caller (router) uses UnitOfWork.
     return wl