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/companies/company-detail-header.tsx

@@ -108,7 +108,7 @@ export function CompanyDetailHeader({ company }: CompanyDetailHeaderProps) {
           <div className="flex flex-wrap items-center gap-2">
             <PermissionGate resource="companies" action="edit">
               <Button variant="outline" size="sm" onClick={() => setEditOpen(true)}>
-                <Pencil className="mr-1.5 h-3.5 w-3.5" />
+                <Pencil className="mr-1.5 h-3.5 w-3.5" aria-hidden />
                 Edit
               </Button>
             </PermissionGate>
@@ -119,7 +119,7 @@ export function CompanyDetailHeader({ company }: CompanyDetailHeaderProps) {
                 onClick={() => setArchiveOpen(true)}
                 disabled={isArchived}
               >
-                <Archive className="mr-1.5 h-3.5 w-3.5" />
+                <Archive className="mr-1.5 h-3.5 w-3.5" aria-hidden />
                 Archive
               </Button>
             </PermissionGate>