Repair and complete the specified character part on the first input image.
The task declares editable regions for segmentation gaps, occlusion, joint
extensions, and removal of overlaid attachments from their underlying base.
Only regions explicitly marked editable may be changed. Preserve all other
visible pixels. Any subsequent images or labeled reference panels are context.
Preserve the exact original pose, scale, screen direction, perspective, colors,
line thickness and shading. Do not mirror, rotate, resize, recenter or redesign.
Keep the canvas dimensions and the position of every already-visible feature.
Extend the hidden joint area naturally behind its occluder, without adding other
body parts, props, labels, annotations or extra versions of the same part.
If an edit mask is supplied, transparent mask pixels are editable. Otherwise,
use the task's bounded extension instructions and keep the remaining background
pure white or transparent. Return the same canvas size without recentering.
Downstream checks reject misalignment and constrain modifications to edit regions,
restore protected source pixels, and reverse the documented canvas transform.
Do not rely on restoration to hide movement or redesign.