refactor: Update login route from `/login` to `/auth` and restrict logout route to GET method.

app.py

@@ -198,10 +198,25 @@ ADAPTER_SPECS = {
         "adapter_name": "inflate",
         "prompt": "inflate the [insert subject]"
     },
+    "Upscaler": {
+        "repo": "starsfriday/Qwen-Image-Edit-2511-Upscale2K",
+        "weights": "qwen_image_edit_2511_upscale.safetensors",
+        "adapter_name": "starsfriday-upscale-2k",
+        "prompt": "Upscale this picture to 4K resolution."
+    },
 }
 
 LOADED_ADAPTERS = set()
 
+def update_lora(lora_adapter):
+    spec = ADAPTER_SPECS.get(lora_adapter)
+    if not spec:
+        raise gr.Error(f"Configuration not found for: {lora_adapter}")
+
+    adapter_name = spec["adapter_name"]
+    prompt = spec.get('prompt', "") # Use .get() to avoid KeyError if prompt is missing
+    return prompt
+
 
 @spaces.GPU(duration=20)
 def infer(