Module patch 

Functions

apply_patch_to_index

Apply patch to staging area

create_patch_for_changes

Create a patch for specific file changes with hunk selection

create_patch_for_files

Create a patch for specific files

reset_staging

Reset staging area

stage_files

Stage specific files (simpler alternative to patch application)

stage_group_changes

Stage changes for a specific group (hunk-aware). The full_diff argument must be taken before any compose commits run so the recorded hunk headers remain stable across groups.