Add logging for Flux pipeline device initialization in app.py

app.py

@@ -21,7 +21,8 @@ llm_client = Client("Qwen/Qwen2.5-72B-Instruct")
 
 device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
 pipe = FluxPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16).to(device)
-
+print(f"Flux pipeline loaded on {device}")
+    
 def generate_t2i_prompt(item_name):
     llm_prompt_template = """You are tasked with creating a concise yet highly detailed description of an item to be used for generating an image in a game development pipeline. The image should show the **entire item** with no parts cropped or hidden. The background should always be plain and monocolor, with no focus on it.