Optimize: Bulk policy chunk storage for Supabase

app/services/rag_service.py

@@ -100,17 +100,18 @@ class RAGService:
             db.query(PolicyChunk).filter(PolicyChunk.policy_id == document_id).delete()
             
             # Create new chunks
+            chunk_objects = []
             for i, chunk_text_content in enumerate(chunks):
-                db_chunk = PolicyChunk(
+                chunk_objects.append(PolicyChunk(
                     id=f"{document_id}_{i}",
                     policy_id=document_id,
                     chunk_index=i,
                     content=chunk_text_content
-                )
-                db.add(db_chunk)
+                ))
             
+            db.bulk_save_objects(chunk_objects)
             db.commit()
-            print(f"[RAG Service] {len(chunks)} chunks also stored in structured database for policy {document_id}")
+            print(f"[RAG Service] {len(chunks)} chunks bulk-stored in structured database for policy {document_id}")
         
         return len(chunks)