Completes the Watchlist+Wishlist pair (same as music). Watchlist monitors
shows/channels for new content; Wishlist is the wanted/missing queue
(movies, one-offs, failed grabs to retry). Placeholder for now.
Following (Watchlist) and the download queue (Downloads) are core to a
movies/TV/YouTube manager — same names as music so they read intuitively.
Both wired via data-video-page (no inline onclick); placeholder for now.
First slice of the video side, on the experimental branch. Purely additive and
fully isolated from music:
- A Music | Video toggle in the sidebar header; clicking flips body[data-side]
(remembered in localStorage). The shared shell (logo, user, Support, Version)
stays; only the nav set + subtitle swap.
- A second sidebar nav (.video-nav) with the video pages — Dashboard, Search,
Discover, Library, Calendar, Import, Settings, Issues, Help & Docs — shown via
CSS off body[data-side]. Service Status is hidden on the video side.
- A placeholder content host; real video pages land later.
Isolation contract held: index.html is +51/-0 (no music markup changed), music
JS/CSS untouched, nothing in music references the controller. The controller
(webui/static/video/video-side.js) is a self-contained IIFE wired purely via
addEventListener (no globals, no inline onclick) — so it can't affect music and
doesn't trip the script-split-integrity contract.
Tests: 6 video-shell structural/isolation tests + 64 script-integrity green.
