fix : server crash with ollama

sources/llm_provider.py

@@ -270,5 +270,6 @@ goodbye!
         return thought
 
 if __name__ == "__main__":
-    provider = Provider("openai", "gpt-4o-mini")
-    print(provider.respond(["user", "Hello, how are you?"]))
+    provider = Provider("server", "deepseek-r1:1.5b", "192.168.1.20:3333")
+    res = provider.respond(["user", "Hello, how are you?"])
+    print("Response:", res)