Ensure GPU detection with warmup at init

app.py

@@ -37,7 +37,11 @@ SYSTEM = (
 @spaces.GPU(duration=60)
 def gpu_warmup() -> str:
     import torch
-    return f"GPU ready: {torch.cuda.get_device_name(0)}"
+    return f"GPU ready at init: {torch.cuda.is_available()}"
+
+gpu_message = gpu_warmup()  # Ensure detection during init
+logger.info(gpu_message)
+
 
 @spaces.GPU(duration=120)
 def _gpu_llm_chat(messages: list) -> str: