add: 添加ollama调用AI chat逻辑

maubot_llmplus/platforms.py

@@ -33,8 +33,9 @@ class Platform:
     additional_prompt: List[dict]
     system_prompt: str
     max_context_messages: int
+    name: str
 
-    def __init__(self, config: BaseProxyConfig, http: ClientSession) -> None:
+    def __init__(self, config: BaseProxyConfig, name: str, http: ClientSession) -> None:
         self.http = http
         self.config = config['platforms'][self.get_type()]
         self.url = self.config['url']
@@ -44,6 +45,7 @@ class Platform:
         self.max_context_messages = self.config['max_context_messages']
         self.additional_prompt = config['additional_prompt']
         self.system_prompt = config['system_prompt']
+        self.name = name
 
     """a
         调用AI对话接口, 响应结果