Columns auto-size to their content (table-layout: auto) via a per-column 'nowrap' flag;
headers never wrap. Replaces hand-tuned fixed widths so values like 'N / S / L' no longer
wrap, and callers give a min-width only where a column must not collapse.
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).