fix(audit-wave-10): aria-hidden sweep on decorative Lucide icons (#69)

Mechanical codemod added \`aria-hidden\` to 444 self-closing single-line
Lucide icon JSX elements across 267 .tsx files in:

- shared/, layout/, dashboard/
- admin/ (all sections)
- clients/, berths/, yachts/, companies/, interests/, documents/
- reminders/, reservations/, residential/, expenses/, email/

The regex targeted only the safe pattern \`<IconName className="..." />\`
(no other props, self-closing, capitalized component name). Every match
inspected is a decorative companion to visible text or sits inside a
button whose accessible name comes from \`aria-label\` / sr-only text
— the icon itself should not be announced.

Screen readers no longer double-read the icon + the adjacent label
text (e.g. "Pencil Pencil Edit" → just "Edit"). The existing
@axe-core/playwright smoke test (\`20-accessibility.spec.ts\`) continues
to pass.

Test suite stays at 1315/1315 vitest. typescript clean.

Closes task #69 (aria-hidden sweep) from the AUDIT-2026-05-12 follow-ups
backlog.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/berths/waiting-list-manager.tsx

@@ -68,7 +68,7 @@ function SortableEntry({
         {...listeners}
         className="cursor-grab active:cursor-grabbing text-muted-foreground"
       >
-        <GripVertical className="h-4 w-4" />
+        <GripVertical className="h-4 w-4" aria-hidden />
       </button>
 
       <span className="text-sm font-mono w-6 text-center text-muted-foreground">
@@ -88,7 +88,7 @@ function SortableEntry({
         onClick={() => onRemove(entry.id)}
         className="text-muted-foreground hover:text-destructive transition-colors"
       >
-        <Trash2 className="h-4 w-4" />
+        <Trash2 className="h-4 w-4" aria-hidden />
       </button>
     </div>
   );
@@ -189,7 +189,7 @@ export function WaitingListManager({ berthId }: WaitingListManagerProps) {
       <div className="flex items-center justify-between">
         <span className="text-sm font-medium">Waiting List ({entries.length})</span>
         <Button size="sm" variant="outline" onClick={() => setShowAddForm((v) => !v)}>
-          <Plus className="mr-1.5 h-4 w-4" />
+          <Plus className="mr-1.5 h-4 w-4" aria-hidden />
           Add
         </Button>
       </div>
@@ -217,7 +217,9 @@ export function WaitingListManager({ berthId }: WaitingListManagerProps) {
           />
           <div className="flex gap-2">
             <Button size="sm" onClick={handleAdd} disabled={addMutation.isPending}>
-              {addMutation.isPending && <Loader2 className="mr-1.5 h-4 w-4 animate-spin" />}
+              {addMutation.isPending && (
+                <Loader2 className="mr-1.5 h-4 w-4 animate-spin" aria-hidden />
+              )}
               Add to List
             </Button>
             <Button size="sm" variant="ghost" onClick={() => setShowAddForm(false)}>