Add ComfyAngel custom node

[ThepExcel]

Summary

Add ComfyAngel - Parameter Overlay, Visual Widgets & Loop nodes for ComfyUI.

Node Features

• Parameter Overlay: Display generation parameters directly on images
• Loop nodes: True loop without Auto Queue
• Visual editors: Smart Crop, Smart Composite with drag-and-drop positioning
• Widget nodes: Color Picker, Resolution Picker, Solid Color
• Loader nodes: Load images from folder with batch processing

Links

• Repository: https://github.com/ThepExcel/ComfyAngel
• Registry: https://registry.comfy.org/thepexcel/comfyangel

[ltdrdata]

There is a path traversal vulnerability. Arbitrary paths must not be accessible. Please restrict access so that only paths within an allowed scope—such as a base directory or paths defined in a whitelist configuration—can be accessed.

https://github.com/ThepExcel/ComfyAngel/blob/ff7489ae22bf34f68c9a6fe5305063bc4e64abb6/api_routes.py#L282
https://github.com/ThepExcel/ComfyAngel/blob/ff7489ae22bf34f68c9a6fe5305063bc4e64abb6/api_routes.py#L394