fix:domain map

ddms_compliance_suite/api_caller/caller.py

@@ -117,9 +117,18 @@ class APICaller:
                 - An APICallDetail Pydantic model instance.
         """
         merged_headers = {**self.default_headers, **(request_data.headers or {})}
+
+        # 🔧 移除User-Agent头（DMS API不需要）
+        if 'User-Agent' in merged_headers:
+            del merged_headers['User-Agent']
+
         timeout = request_data.timeout or self.default_timeout
         json_payload = request_data.json_data
 
+        # 🔧 确保POST请求有空对象body（如果没有提供json_data）
+        if request_data.method.upper() == 'POST' and json_payload is None and request_data.data is None:
+            json_payload = {}  # 空对象
+
         # Generate cURL command before making the request
         curl_command = self._generate_curl_command(request_data, merged_headers)
 
@@ -130,7 +139,11 @@ class APICaller:
             request_body_for_log = request_data.data # Store as is, might be dict or str
 
         try:
-            response = requests.request(
+            # 🔧 创建session并禁用默认User-Agent
+            session = requests.Session()
+            session.headers.clear()  # 清除所有默认头
+
+            response = session.request(
                 method=request_data.method.upper(),
                 url=str(request_data.url),
                 headers=merged_headers,