check the file after cp.

utils/tools.py

@@ -56,6 +56,9 @@ def execute_sqlite_query(db_name, query):
     uid = uuid.uuid4()
     tmp_db_file = f'/tmp/{uid}_{os.path.basename(db_path)}'
     shutil.copy(db_path, tmp_db_file)
+    # check the file exist 
+    if not os.path.exists(tmp_db_file):
+        return {'success': False, 'error': f"cp {db_path} to {tmp_db_file} failed."}
 
     try:
         # 連接到 SQLite 數據庫