refactored insert funtion in mapper

app/mapper.py

@@ -447,9 +447,9 @@ def canonify_df(org_id: str, source_id: str, hours_window: int = 24) -> tuple[pd
         if is_new_schema:
             version_id = duck.execute("""
                 INSERT INTO main.schema_versions (table_name, schema_json, status) 
-                VALUES (?, ?, 'pending') RETURNING version_id
-            """, (f"{entity_type}_canonical", json.dumps(current_schema))).fetchone()[0]
-            print(f"[canonify] 📝 Created schema v{version_id} for {entity_type}_canonical")
+                VALUES (?, ?, 'pending')
+            """, (f"{entity_type}_canonical", json.dumps(current_schema)))
+            version_id = duck.execute("SELECT last_insert_rowid()").fetchone()[0]
         
         # 8b) Ensure table exists with current schema
         table_name = ensure_canonical_table(duck, df, entity_type)