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/admin/ports/port-list.tsx

@@ -95,7 +95,7 @@ export function PortList() {
       header: '',
       cell: ({ row }) => (
         <Button variant="ghost" size="sm" onClick={() => handleEditPort(row.original)}>
-          <Pencil className="h-4 w-4" />
+          <Pencil className="h-4 w-4" aria-hidden />
           <span className="sr-only">Edit</span>
         </Button>
       ),
@@ -111,7 +111,7 @@ export function PortList() {
         description="Manage marina ports and their configuration"
         actions={
           <Button onClick={handleNewPort}>
-            <Plus className="mr-1.5 h-4 w-4" />
+            <Plus className="mr-1.5 h-4 w-4" aria-hidden />
             New Port
           </Button>
         }
@@ -154,7 +154,7 @@ export function PortList() {
               aria-label={`Edit ${original.name}`}
               className="shrink-0"
             >
-              <Pencil className="h-4 w-4" />
+              <Pencil className="h-4 w-4" aria-hidden />
             </Button>
           </div>
         )}