The sidebar's Actions section retires — Delete and Reveal in Finder move to the card window's toolbar

Actions is gone from the trailing sidebar. Its two rows land on the card
window's toolbar instead: Delete Card is a new default item (trash SF
Symbol), and Reveal in Finder joins the customizable catalog. The sidebar's
final order is now Style, Details, Attachments — no fourth section.

Delete Card is a push button gated by the same read-only predicate the
sidebar button carried, and it fires the identical write
(BoardStore.deleteCard(_:)) — same bracket, same stamps, no confirmation,
matching the delete flow exactly: recovery is the board's trash lane, so
there is nothing here for an alert to guard. It sits behind a trailing
flexibleSpace in the default set, apart from the four creation/view items
ahead of it, the HIG separation Mail.app's own toolbar Delete models —
one-click, no-confirm, recoverable by trash.

Reveal in Finder is catalog-only: it already had a menu-bar twin with no
default chord (File ▸ Reveal in Finder / RevealInFinderCommand), so nothing
was unreachable before this — the toolbar item is Customize's shortcut to
the same computation (CardAttachments.revealURLs), not a new path.

Delete Card needed a menu-row twin of its own before it could sit on the
toolbar at all ("toolbars are pure enhancement: every function they host
already has a menu item + shortcut" — 03-board-ui.md ▸ Toolbar). File ▸
Delete Card is that row: distinctly titled from the board-scope File ▸
Delete (whose title 11-command-nexus.md calls out as the ⌘⌫ chord's
singleton), and deliberately chord-less — an enabled delete-key equivalent
in the card window would steal delete-to-line-start from its text surfaces,
the same reason the board's own ⌘⌫ was never extended here in the first
place. A new small handle, CardWindowActions, carries the wiring through the
focus system the way CardAttachments and CardPrintSubject already do for
their own single-purpose seams — kept separate from CardAttachments on
purpose, since a delete has nothing to do with the attachments section that
type is scoped to.

CardToolbarTests grows the BoardToolbarTests split (defaults vs. catalog,
now that they differ) plus two new suites: Delete Card firing the wired
write under the lock, and Reveal in Finder's enablement mirroring the menu
row's own card-window computation.

05-card-window.md's Actions section and 11-command-nexus.md's File-menu
inventory are now stale; both amendments are owed and tracked on the card's
own thread rather than made here.

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy

Kanban/KanbanApp.swift

@@ -236,6 +236,14 @@ struct KanbanApp: App {
             SetAsHeroCommand()
             RemoveHeroCommand()
             AddCommentCommand()
+            // **Delete Card joined 2026-08-09** (05-card-window.md ▸ Actions, retired — Pipeline card
+            // bcd3b323): the card window's own delete, promoted off the sidebar's Actions section to
+            // a menu row so the new toolbar item mirroring it (`CardToolbar`) has the menu twin every
+            // toolbar function needs. Distinctly titled from the row below — "Delete" is that row's
+            // own singleton title (11-command-nexus.md) — and deliberately chord-less: an enabled
+            // delete-key equivalent here would steal delete-to-line-start from this window's text
+            // surfaces, the reason `TrashCommands`' own ⌘⌫ was never extended to the card window.
+            DeleteCardCommand()
 
             Divider()