Restore hidden teleop episodes and MEgo ego samples

TEMP: hide teleop episodes (keep 4 Faber U tasks) and MEgo ego samples

teleopSample viewer: fix mislabeled 'steel tray' text, unify raw-data download link style with egoSample, fix broken FaberU/pickplace_samples download path

teleopSample: t2 is a water bottle, not a soda bottle

teleopSample: step annotations + timeline on the older pages, autoplay on ours

teleopSample: add 4 Faber U pick-and-place tasks (8 episodes)

teleopSample: unified sidebar viewer + 8 Faber U (skild) episodes (7-cam, faces masked), legacy ep0-5 kept

Move teleop pages into teleopSample/; gzip-pack the Master mesh; per-clip default camera