fix(review-feedback-1284): address latest review comments

Author: ZhuLinsen

src/analyzer.py

@@ -2183,7 +2183,7 @@ def _call_litellm(
 
                 content = self._extract_completion_text(response)
                 if content:
-                    usage = self._normalize_usage(getattr(response, "usage", None))
+                    usage = self._normalize_usage(self._get_response_field(response, "usage"))
                     last_response_text = content
                     last_model = model
                     last_usage = usage

tests/test_market_analyzer_generate_text.py

@@ -200,6 +200,37 @@ def test_call_litellm_falls_back_to_message_content_when_blocks_empty(self):
         assert model_used == "openai/deepseek-chat"
         assert usage == {}
 
+    def test_call_litellm_extracts_list_message_content_from_dict_response(self):
+        analyzer = self._make_analyzer()
+        analyzer._config_override = SimpleNamespace(
+            litellm_model="openai/list-content-provider",
+            litellm_fallback_models=[],
+            llm_model_list=[],
+        )
+        response = {
+            "choices": [
+                {
+                    "message": {
+                        "content": [
+                            {"type": "text", "text": "list "},
+                            {"type": "text", "text": "response"},
+                        ],
+                    },
+                }
+            ],
+            "usage": {"prompt_tokens": 3, "completion_tokens": 4, "total_tokens": 7},
+        }
+
+        with patch.object(analyzer, "_dispatch_litellm_completion", return_value=response):
+            text, model_used, usage = analyzer._call_litellm(
+                "prompt",
+                {"max_tokens": 128, "temperature": 0.2},
+            )
+
+        assert text == "list response"
+        assert model_used == "openai/list-content-provider"
+        assert usage == {"prompt_tokens": 3, "completion_tokens": 4, "total_tokens": 7}
+
     def test_call_litellm_normalizes_kimi_k26_temperature(self):
         analyzer = self._make_analyzer()
         analyzer._config_override = SimpleNamespace(