Edits hook overlay

Instagram's native text (Edits / the IG composer) is a look you cannot reproduce exactly in a renderer: its font, per-line rounded boxes and anti-aliasing are Instagram's. This skill gets that exact look onto any number of videos while the phone only ever touches a 6-second template project.

plate (black 3 s | white 3 s) ──► Edits template project: ONE styled text clip over both halves
        │  per hook: retype text → Export → Download          (scripts/edits_hooks.py)
        ▼
 hook-NN.mp4 (camera roll → pulled over USB)
        │  difference matte                                  (scripts/extract_overlay.py)
        ▼
 hook-NN.png  +  hook-NN-sprite.png  +  hook-NN.json (bbox, checks)
        │  scale · place · time · HLG-safe burn-in            (scripts/apply_overlay.py)
        ▼
 <video>-hook.mp4   × as many videos as you like