M6.6: mask tracking + mask interpolation; M12.5: Warp Stabilizer
Mask tracking (track.mask, background job with progress/cancel, one undo
step, Mask Path keys; Tracker panel mask mode; Layer > Mask > Track Mask),
Mask Interpolation panel + mask.interpolate, and the Warp Stabilizer
effect (Effect > Distort, AE parameter groups, warp.analyze/cancel/status,
analysis stored in the effect, invalidation on source/in/out/remap edits,
viewer banner, crop/auto-scale/synthesize edges, track points).
Adds the effects -> track same-layer edge.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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