fix(#1285): handle restart queue kind in dashboard container row

The pending-label derivation had no case for op.kind === 'restart', so
it fell through to the rebuild/rebuild-queued else branch — showing a
misleading 'rebuild pending' badge when the operator issued a restart.

Add explicit 'restarting' / 'restart queued' cases alongside the
existing meta_update and destroy cases.

Also add restart / startup_sweep / perm_change to QUEUE_KIND_GLYPH so
they render with a meaningful glyph (↺ / ⚡ / 🔑) instead of '?' in
the rebuild-queue panel.

frontend/packages/dashboard/src/tabs.js

@@ -651,9 +651,11 @@ window.marked = marked;
         || (op && (op.state === 'running'
               ? (op.kind === 'meta_update' ? 'meta-updating'
                   : op.kind === 'destroy'  ? 'destroying'
+                  : op.kind === 'restart'  ? 'restarting'
                   : 'rebuilding')
               : (op.kind === 'meta_update' ? 'meta-update queued'
                   : op.kind === 'destroy'  ? 'destroy queued'
+                  : op.kind === 'restart'  ? 'restart queued'
                   : 'rebuild queued')));
       const opRunning = transientKind != null
         || (op != null && op.state === 'running');
@@ -2177,6 +2179,9 @@ window.marked = marked;
     meta_update: '◆',
     spawn: '✨',
     destroy: '🗑',
+    restart: '↺',
+    startup_sweep: '⚡',
+    perm_change: '🔑',
   };
   const QUEUE_STATE_GLYPH = {
     queued: '⏸',