[backends] Add comprehensive test suite for VideoStreamMoviePy#512

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chyang-nycu wants to merge 3 commits intoBreakthrough:mainfrom

chyang-nycu:add-backend-test

Commits on Jun 4, 2025

[backends] Add comprehensive test suite for VideoStreamMoviePy
chyang-nycu
committed
Refactor: Remove unused import and clean up whitespace
chyang-nycu
committed

Commits on Nov 8, 2025

Merge branch 'main' into add-backend-test
Breakthrough
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