Step 1 full re-run @ 15fps with compound+fallback prompts and containment merge (55 clips)

Replace samples/ with 21-clip Step 1 test batch (no SAM3D, no 6DoF)

add 7 backfilled clips (55 total); dedup updates from earlier exports

recording.viser: include sam3d object meshes (fix stale ply_path); README: viewer:false + snapshot_download docs

Refresh dataset: 48 trim-reviewed clips, manual SAM3 prompts, full descriptions in scene.json

Initial deploy

initial commit