落地私聊空运询价与TMS报价回填，按后台模板出单。

查到价后把币种、单位、数量、单价、备注写入报价单，避免销售只看到光秃秃的金额。

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-agent/agent/llm/http_client.py

@@ -119,15 +119,22 @@ class LlmHttpClient:
             body["tools"] = tools
         if tool_choice is not None:
             body["tool_choice"] = tool_choice
+            # deepseek-v4-flash 思考模式拒绝 named/required tool_choice，抽字段会 400
+            if provider == "deepseek":
+                body["thinking"] = {"type": "disabled"}
         try:
             with httpx.Client(timeout=self.timeout_seconds) as client:
                 resp = client.post(url, headers=headers, json=body)
             data = resp.json() if resp.content else {}
             if resp.status_code >= 400:
+                err_msg = ""
+                if isinstance(data, dict) and isinstance(data.get("error"), dict):
+                    err_msg = str(data["error"].get("message") or "")[:200]
                 logger.warning(
-                    "llm.http 失败 provider=%s status=%s",
+                    "llm.http 失败 provider=%s status=%s err=%s",
                     provider,
                     resp.status_code,
+                    err_msg,
                 )
                 return LlmHttpResult(
                     ok=False,