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Miguel Ángel 2b65b4efce fix(studio): harden composition timeline reliability (#2615 )

* fix(studio): preserve composition playback continuity

* feat(studio): drag compositions into the timeline

* fix(studio): collapse expanded composition move aliases

* fix(studio): make timeline cuts atomic

* fix(studio): group inspector gesture history

* test(studio): cover masked text selection

* fix(studio): harden composition timeline reliability

* fix(studio): satisfy CI source gates

* fix(studio): harden composition mutation requests

2026-07-17 14:15:30 -04:00

compositions

fix(studio): harden composition timeline reliability (#2615 )

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hyperframes.json

fix(studio): harden composition timeline reliability (#2615 )

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index.html

fix(studio): harden composition timeline reliability (#2615 )

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package.json

fix(studio): harden composition timeline reliability (#2615 )

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README.md

fix(studio): harden composition timeline reliability (#2615 )

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README.md

Composition reliability acceptance fixture

Compact, media-free Studio project for validating composition editing as one stack:

two root hosts reuse title-card.html at different times;
nested-shell.html hosts the same title card one level deeper;
the title card uses a transparent overflow mask around an editable headline;
adjacent clips on one track provide a clean collision/new-track drop target;
a cross-track overlap exercises normal visual layering.

Copy this directory to scratch before browser acceptance. Exercise open, composition insert, single/multi move, collision placement, overlap layering, cut, headline color/font-size, and one-step undo. The checked-in fixture must remain unchanged.