fix: fixes

Author: rustyconover

src/query_farm_server_base/server.py

@@ -336,7 +336,7 @@ def action_create_transaction(
         *,
         context: CallContext[AccountType, TokenType],
         database_name: str,
-    ) -> str | None:
+    ) -> tuple[str | None]:
         pass
 
     @log_action()