The panel used three CSS variables the kit never defines, so its borders,
hover fills and dimmed text were silently dropped — the two columns had no
visible edge. Use the real tokens.

Around that, name the section and keep its controls with the list they act
on: a title and one-line explanation, then a list pane (search, area
filter, New, count) and a document pane, each a bordered surface. Rows get
a caret and hover/focus states; the reading pane shows a loader while the
next entry travels, moves the read-only marker into the meta line, and
swaps Delete for the kit's icon-only button. The editor uses the whole
column instead of the kit's 600px control cap.

Settings had one long panel mixing skills and protocols as raw markdown,
which was hard to read and wasted the width. Skills and Protocols are now
two tabs over one panel keyed by kind.

Selecting an entry shows the parsed document — triggers, preconditions,
steps, post-checks, escape hatches, body — and an Edit button switches to
the source, so the catalog is read the way the agent loads it. The
single-entry payload carries the parsed document; the list still does not,
so it stays cheap. SkillDocument is shared with the chat proposal card,
which now only draws its own frame and header.