refactor: optimize timeout exception msg.

Author: liqiang-fit2cloud

apps/common/utils/tool_code.py

@@ -254,7 +254,7 @@ def _exec_sandbox(self, _code):
             if proc.poll() is None: #如果仍未终止，强制终止
                 os.killpg(pgid, signal.SIGKILL)
             proc.wait()
-            raise Exception(_("Process execution timed out.")) # 执行超时，到了MAXKB_SANDBOX_PYTHON_PROCESS_TIMEOUT_SECONDS限制
+            raise Exception(_(f"Process execution timed out after {self.process_timeout_seconds} seconds."))
 
     def validate_mcp_transport(self, code_str):
         servers = json.loads(code_str)