A contract test scans the source (tests excluded) for each key as a whole literal, or under a
dynamic prefix like `plex.sort.${k}`, with plural forms counted through their base key. It found 75
keys that had outlived the code showing them (the old sidebar sort vocabulary, the old login page, a
pager the DataTable replaced, …); they are gone from EN and HU. A key read in a way the scan cannot
see goes in an explicit ALLOWED map with its reason.
Generic client-side table: per-column sort, in-header filters (text/select/multi),
built-in pagination with a user-set page size (incl. All) and an editable jump-to-page
box. Sort/filter/page/size persist to localStorage (survive F5). Falls back to a compact
card list below md. Intended for reuse across modules (channels now, playlists next).
peter