Wire the replay module's onJumpToTime callback so the full-page timeline
can coordinate with the replay system after a jump-to-time API call. The
callback syncs replay state, shows the control bar, and feeds replay
blobs to the 3D scene.
All CSS (.selected, .now-replaying-chip), DOM elements, sidebar timeline
click handling, Go backend jump-to-time endpoint, and tests were already
in place. This closes the cross-module coordination gap.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>