chore: update model endpoint to deepseek-ai/DeepSeek-V4-Pro:fireworks-ai

app.py

@@ -18,7 +18,7 @@ def chat(message: str, history_json: list) -> str:
     messages = history_json + [{"role": "user", "content": message}]
     
     stream = client.chat.completions.create(
-        model="deepseek-ai/DeepSeek-V4-Pro:fastest",
+        model="deepseek-ai/DeepSeek-V4-Pro:fireworks-ai",
         messages=messages,
         stream=True,
     )