The deep-scan action types weren't selectable builder actions, and Scan Video Server
/ Update Video Database had no movie-vs-TV dimension — inconsistent with the rest.
- video_deep_scan_tv / video_deep_scan_movies are now proper builder blocks
(Deep Scan TV/Movie Library), not just system-automation action types.
- video_scan_server + video_update_database gain a media_type ('all'|'movie'|'show')
config + selector, threaded through. The post-download chain carries the scope on
the scan-done event, so a TV-only rescan updates only TV (stage 2 inherits it).
- refresh_video_server_sections / Plex+Jellyfin refresh_sections scope the server
nudge to the chosen library; auto_video_scan_library now nudges only its library.
- shared normalize_media_type() in sources; update_database skips cleanly when the
singleton scanner is busy. Defaults stay 'all' so existing chains are unchanged.
Seam tests for refresh scoping, scan-server scope+event, update-db scope/inherit/skip.
1) Scan only the MAPPED libraries — never fall back to 'all'. The scan path used
_sections/_views with the selected name, but an empty name returned ALL sections
of that type — so a missing/unreadable selection silently scanned every library
(how the 4K movie + 'YouTube' TV libraries leaked in as movies/shows). New
_scan_sections / _scan_views return [] when a kind isn't mapped; available_libraries
still lists all (for the Settings dropdown). Now an unmapped kind scans NOTHING.
2) A library scan (full/incremental/deep) now pauses EVERY enricher, including the
YouTube date enricher — a separate singleton outside engine.workers that kept
running through scans. pause_for_scan/resume_after_scan pause+resume it too, only
if it wasn't already manually paused (never override the user).
kettui: source-scope tests (mapped-only / unmapped-scans-nothing / listing still
shows all) + engine pause tests (pauses+resumes YT / preserves manual pause).
123 scanner/source/enrichment tests + isolation guard green.
