Fix AttributeError when processing PNG files with newer ComfyUI workflow format
where node inputs are stored as lists instead of dictionaries.
- Add _get_node_inputs() helper to normalize both dict and list input formats
- Add _find_text_in_node() to extract text from nodes using multiple strategies
- Update _extract_positive_prompt_from_comfyui_data() to use safe accessors
- Maintain full backward compatibility with existing workflow formats
Fixes error: "'list' object has no attribute 'get'" when scanning images
from workflows using the newer ComfyUI format.
Vito Sansevero
983306366f