fix: llmcore工具调用正则兼容tool_call标签,最小长度改为0

ga.py

@@ -388,7 +388,7 @@ class GenericAgentHandler(BaseHandler):
         
         blocks = extract_robust_content(response.content)
         if not blocks:
-            yield f"[Status] ❌ 失败: 未在回复中找到代码块内容\n"
+            yield f"[Status] ❌ 失败: 未在回复中找到<file_content>代码块内容\n"
             return StepOutcome({"status": "error", "msg": "No content found, if you want a blank, you should use code_run"}, next_prompt="\n")
         try:
             new_content = expand_file_refs(blocks, base_dir=self.cwd)