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