feat(nyahome): 支持模型的思考模式（DS）与编辑模型

增加了控制模型是否支持思考以及是否在调用时启用思考的开关，目前为 DeepSeek 适配。
WebUI 进行了同步的更新。

src/nyahome/service/chat_service.py

@@ -105,11 +105,12 @@ def apply_chat(id_: int, user_id: int, chat: ChatroomChat, session: Session) ->
         "api_key": model.aii_provider.api_key,
         "model_name": model.model_name,
         "messages": messages,
+        "enable_thinking": chat.enable_thinking,
     }
 
 
 async def s_start_async_streaming_chat(
-    base_url: str, api_key: str, model_name: str, messages: list
+    base_url: str, api_key: str, model_name: str, messages: list, enable_thinking: bool
 ) -> AsyncGenerator[str, None]:
     client = AsyncOpenAI(base_url=base_url, api_key=api_key)
     stream = await client.chat.completions.create(
@@ -117,6 +118,7 @@ async def s_start_async_streaming_chat(
         model=model_name,
         stream=True,
         reasoning_effort="high",
+        extra_body={"thinking": {"type": "enabled" if enable_thinking else "disabled"}},
     )
 
     # AI 说 SSE 好喵，推荐我用 SSE 喵，我不知道喵
@@ -135,6 +137,7 @@ async def s_start_async_streaming_chat(
             yield f"data: {json.dumps({'text': cd, 'type': 'output'}, ensure_ascii=False)}\n\n"
     logger.info(f"AI 完成输出 : {aii_message}")
     try:
+        # noinspection PyUnboundLocalVariable
         yield f"data: {json.dumps({'type': 'usage', **chuck.usage.model_dump()})}\n\n"  # type: ignore[union-attr]
     finally:
         yield "data: [DONE]\n\n"