debug(core): add model structure logging

app/core/model_support.py

@@ -54,6 +54,12 @@ def describe_model_support(model: Any) -> ModelSupport:
             break
 
     if not layers:
+        # Diagnostic logging for Hugging Face Space
+        print(f"DEBUG: Model type: {type(model)}")
+        print(f"DEBUG: Model top-level attributes: {dir(model)}")
+        if hasattr(model, "model"):
+            print(f"DEBUG: model.model attributes: {dir(model.model)}")
+        
         return ModelSupport(
             supports_attribution=False,
             reason="Unsupported model structure: unable to locate decoder layers.",