[Wake/VAD/STT 与 Live runtime]：完成真实重复语音运行，包含云端ASR/TTS开关、run-live和临时上下文测试

src/owner_voice_pet/llm.py

@@ -51,7 +51,7 @@ class OpenAICompatibleLlmProvider:
             "stream": self.config.llm_stream,
         }
         yield from self._post_stream(
-            f"{self.config.llm_base_url}/v1/chat/completions",
+            self.config.api_url("/v1/chat/completions"),
             payload,
             parser=_parse_chat_completion_sse,
         )
@@ -63,7 +63,7 @@ class OpenAICompatibleLlmProvider:
             "stream": self.config.llm_stream,
         }
         yield from self._post_stream(
-            f"{self.config.llm_base_url}/v1/responses",
+            self.config.api_url("/v1/responses"),
             payload,
             parser=_parse_responses_sse,
         )