fix: scope input-scanning loop inside per-node try/except in extract_models_from_prompt

If INPUT_TYPES() succeeded but returned a non-dict, the inner loop
calling input_types.get() would raise AttributeError outside the guard,
aborting model tracking for the entire prompt. Moving the loop inside
the try/except means only the offending node is skipped via continue.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mapper.py

@@ -159,24 +159,23 @@ class ModelMapper:
 
             try:
                 input_types = node_cls.INPUT_TYPES()
+                for category in ("required", "optional"):
+                    for input_name, input_def in input_types.get(category, {}).items():
+                        if not isinstance(input_def, (list, tuple)) or not input_def:
+                            continue
+                        # ComfyUI folder dropdowns have a list as their type
+                        if not isinstance(input_def[0], list):
+                            continue
+                        value = node_inputs.get(input_name)
+                        if not isinstance(value, str) or value in seen:
+                            continue
+                        model_type = self.get_model_type(value)
+                        if model_type:
+                            seen.add(value)
+                            results.append((value, model_type))
             except Exception:
                 continue
 
-            for category in ("required", "optional"):
-                for input_name, input_def in input_types.get(category, {}).items():
-                    if not isinstance(input_def, (list, tuple)) or not input_def:
-                        continue
-                    # ComfyUI folder dropdowns have a list as their type
-                    if not isinstance(input_def[0], list):
-                        continue
-                    value = node_inputs.get(input_name)
-                    if not isinstance(value, str) or value in seen:
-                        continue
-                    model_type = self.get_model_type(value)
-                    if model_type:
-                        seen.add(value)
-                        results.append((value, model_type))
-
         return results
 
     def invalidate(self):