feat: add MCP creator screenshot metrics recognition

tests/mcp-collection-client.test.mjs

@@ -520,7 +520,7 @@ test("surfaces current detail tool failures without calling removed tools", asyn
       },
       fetchImpl,
     ),
-    /获取内容详情失败/,
+    /MCP工具 fetch_content_detail 返回失败（code 400）：获取内容详情失败/,
   );
   assert.equal(calls.length, 3);
   assert.equal(calls[2].body.params.name, "fetch_content_detail");