Build the trash quasi-lane

Deletion becomes a two-stage, Finder-style story. File > Delete and
plain Backspace tombstone the live selection; View > Show Trash (no
chord — Shift-Cmd-T stays with the system's tab bar) reveals the
quasi-lane: trailing, one fixed width unit consumed only while shown,
hatched dimmed header, count badge, no new-card button, exempt from
resize and reorder alike. Its contents are a pure view over the
snapshot — the deterministic sort (deleted newest first, folder-name
ties, unparseable stamps oldest) interleaves card rows with a
tombstoned lane's single entry, whose count names what Put Back
returns; the ancestor walk is absolute, so an own-flag card beneath a
tombstoned lane has no row and recovery is deliberately two steps.
Put Back twins Delete on Cmd-Backspace with validation enabling
exactly one; restore fidelity is byte-perfect because nothing ever
moved. Delete Immediately confirms exactly where loss is real (every
board is mode-none today; the predicate names the git carve-out for
m7), Empty Trash always confirms with the true whole-board count,
and dragging a tombstoned card onto a live lane restores it there —
positional drops and cross-board locality arrive with m5's machinery.
The banner's delete phrasing drops "move to the trash" per the naming
constraint: board deletion says Delete, "Move to Trash" stays
reserved for the system Trash. 47 new tests.

Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY

Kanban/KanbanApp.swift

@@ -108,8 +108,9 @@ struct KanbanApp: App {
     @CommandsBuilder
     private var menuCommands: some Commands {
         // The File group, in 11-command-nexus.md's own row order: New Card, New Lane, (New Board…,
-        // still owed), Open…, (Open Recent, still owed), Board Info. The creation pair and Board
-        // Info all validate against the frontmost board through the focus system, so each is simply
+        // still owed), Open…, (Open Recent, still owed), Board Info, (Duplicate / Save as Template /
+        // Reveal in Finder, still owed), then the trash trio and Empty Trash…. Every one of them
+        // validates against the frontmost board through the focus system, so each is simply
         // absent-of-effect when no board is in front.
         CommandGroup(after: .newItem) {
             BoardCreationCommands()
@@ -124,6 +125,17 @@ struct KanbanApp: App {
             Divider()
 
             BoardInfoCommand()
+
+            Divider()
+
+            TrashCommands()
+        }
+
+        // The View menu. `CommandGroupPlacement.toolbar` *is* View — the menu the toolbar's own
+        // items live in — which is where 11-command-nexus.md files Show Trash, alongside the card
+        // window's Edit Body / Raw Source / History still to come.
+        CommandGroup(after: .toolbar) {
+            ShowTrashCommand()
         }
 
         // The Board menu (11-command-nexus.md), in its inventoried order — Rename, then Style…,