fix: skip ERROR results for tc count; remove debug yield

pipeline_service/agent_loop_v2.py

@@ -128,8 +128,6 @@ class AgentExecutor:
             # 5b. LLM 调用
             raw = await self._call_llm()
 
-            yield "DEBUG_RAW turn=" + str(self._turn_count) + " len=" + str(len(raw) if raw else 0) + "\n"
-
             # 5c. 解析 LLM 输出
             actions = self._parse_actions(raw)
 
@@ -190,7 +188,7 @@ class AgentExecutor:
                     }, ensure_ascii=False) + "\n"
 
                     result = await self._execute_tool(tool_name, tool_params)
-                    if not result.startswith("未知工具"):
+                    if not result.startswith("未知工具") and not result.startswith("ERROR"):
                         self._tool_call_count += 1
 
                     yield json.dumps({