Use merged main branch and correct R2VA preparation script paths

Show synchronized Dense/Veda R2VA comparisons with speedups in title bars

Restore reference video and give output players explicit layout and fallback links

Restore absolute media URLs and isolate first reference video playback test

Restore reference video links after media path test

Temporarily test generated video in reference slots

Fix model card media links for private repository rendering

Update R2VA Veda preview package

initial commit