The checkVideo script previously failed to find video files when invoked via pnpm --filter because it relied on the current working directory, which pointed to the package folder rather than the repository root. By utilizing INIT_CWD, the script now correctly resolves file paths relative to where the command was originally executed, improving developer ergonomics. Correct path resolution

Fix path resolution for checkVideo script when running via pnpm --filter - subh05sus/visual-anim-studio