fix: try better model

app.py

@@ -32,7 +32,7 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 class BasicAgent:
     def __init__(self):
         # self.llm = Ollama(model="qwen2.5:7b", request_timeout=500)
-        self.llm = Gemini(model_name="models/gemini-2.0-flash-lite")
+        self.llm = Gemini(model_name="models/gemini-2.0-flash")
         print("BasicAgent initialized.")
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")