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/clients/client-columns.tsx

@@ -121,7 +121,7 @@ export function getClientColumns({
             className="inline-flex items-center gap-1.5 text-sm text-foreground hover:text-primary hover:underline"
             title={`Email ${value}`}
           >
-            <Mail className="h-3 w-3 shrink-0 text-muted-foreground" />
+            <Mail className="h-3 w-3 shrink-0 text-muted-foreground" aria-hidden />
             <span className="truncate">{value}</span>
           </a>
         );
@@ -147,7 +147,7 @@ export function getClientColumns({
               className="inline-flex items-center gap-1.5 text-foreground hover:text-primary hover:underline"
               title={`Call ${value}`}
             >
-              <Phone className="h-3 w-3 shrink-0 text-muted-foreground" />
+              <Phone className="h-3 w-3 shrink-0 text-muted-foreground" aria-hidden />
               <span>{value}</span>
             </a>
             {waDigits && (
@@ -160,7 +160,7 @@ export function getClientColumns({
                 title={`WhatsApp ${value}`}
                 aria-label={`WhatsApp ${value}`}
               >
-                <MessageCircle className="h-3.5 w-3.5" />
+                <MessageCircle className="h-3.5 w-3.5" aria-hidden />
               </a>
             )}
           </span>
@@ -303,16 +303,16 @@ export function getClientColumns({
               className="h-7 w-7"
               onClick={(e) => e.stopPropagation()}
             >
-              <MoreHorizontal className="h-4 w-4" />
+              <MoreHorizontal className="h-4 w-4" aria-hidden />
             </Button>
           </DropdownMenuTrigger>
           <DropdownMenuContent align="end">
             <DropdownMenuItem onClick={() => onEdit(row.original)}>
-              <Pencil className="mr-2 h-3.5 w-3.5" />
+              <Pencil className="mr-2 h-3.5 w-3.5" aria-hidden />
               Edit
             </DropdownMenuItem>
             <DropdownMenuItem className="text-destructive" onClick={() => onArchive(row.original)}>
-              <Archive className="mr-2 h-3.5 w-3.5" />
+              <Archive className="mr-2 h-3.5 w-3.5" aria-hidden />
               Archive
             </DropdownMenuItem>
           </DropdownMenuContent>