add: 添加切换模型命令

maubot_llmplus/plugin.py

@@ -5,12 +5,18 @@ class AbsExtraConfigPlugin(Plugin):
     default_username: str
     user_id: str
 
+    model: str;
+
     async def start(self) -> None:
         await super().start()
         self.default_username = await self.client.get_displayname(self.client.mxid)
         self.user_id = self.client.parse_user_id(self.client.mxid)[0]
+        self.model = self.config['platform'][self.config['use_platform']]['model']
 
     def get_bot_name(self) -> str:
         return self.config['name'] or \
             self.default_username or \
-            self.user_id
+            self.user_id
+
+    def get_use_model(self) -> str:
+        return self.model