SmartTube keeps its action buttons under the seek bar — we had nothing.
The paused/controls overlay gained: subscribe (POST /users/me/
subscriptions with the channel URI, state via the bulk exist endpoint),
like/dislike with immediate count and fill feedback (PUT /videos/{uuid}/
rate), and right-sidebar panels for comments (GET /videos/{uuid}/
comment-threads, paged, read-only; the instance has comments disabled on
some videos, which surfaces as a friendly empty state) and playlists
(checkboxes add/remove the video via the playlist-elements endpoints, a
text field creates new ones). Opening a panel shrinks the video so it
stays fully visible on the left; BACK or LEFT closes again.
Two server quirks are handled: the subscription exist-check settles a
moment after the POST (optimistic update + delayed re-verify instead of
trusting an instant answer), and this emulator translates CENTER into
the platform click as well, so a single press could subscribe and
instantly unsubscribe — activation is now guarded per request.
Closes#10
Jeena
9ca65c121b