Dashboard endpoint now returns the active media server; the Tools card title
becomes '<Server> Library Scan' (e.g. 'Plex Library Scan'), matching how music
prefixes 'Plex Database Updater'.
First wire from video.db -> UI, kettui-style.
- api/video/ : isolated Flask blueprint (registered at /api/video with one
additive line in web_server.py). Reads only video.db; imports nothing from
the music API or DB.
- GET /api/video/dashboard -> VideoDatabase.dashboard_stats(): live library/
download/watchlist/wishlist counts (real 0s on an empty DB).
- video-dashboard.js now fetches it and fills the stat cards + Watchlist/
Wishlist header badges (formatted bytes/speed); falls back to zeros on error.
uptime/memory stay at markup defaults for now (not video-domain).
- Tests: dashboard_stats counts (empty + populated), endpoint returns zeroed
JSON via a Flask test client, blueprint exposes the route, and the video API
imports nothing from music. 93 video/integrity tests green.
