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/interests/interest-form.tsx

@@ -278,7 +278,7 @@ export function InterestForm({ open, onOpenChange, defaultClientId, interest }:
                     disabled={isEdit}
                   >
                     {selectedClient?.label ?? interest?.clientName ?? 'Select client...'}
-                    <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+                    <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" aria-hidden />
                   </Button>
                 </PopoverTrigger>
                 <PopoverContent className="w-(--radix-popper-anchor-width) min-w-[280px] p-0">
@@ -336,7 +336,7 @@ export function InterestForm({ open, onOpenChange, defaultClientId, interest }:
                     )}
                   >
                     {selectedBerth?.label ?? interest?.berthMooringNumber ?? 'Select berth...'}
-                    <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+                    <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" aria-hidden />
                   </Button>
                 </PopoverTrigger>
                 <PopoverContent className="w-(--radix-popper-anchor-width) min-w-[280px] p-0">
@@ -398,7 +398,7 @@ export function InterestForm({ open, onOpenChange, defaultClientId, interest }:
                     className="h-7 text-xs"
                     onClick={() => setCreateYachtOpen(true)}
                   >
-                    <Plus className="mr-1 h-3 w-3" />
+                    <Plus className="mr-1 h-3 w-3" aria-hidden />
                     Add new
                   </Button>
                 )}
@@ -581,7 +581,7 @@ export function InterestForm({ open, onOpenChange, defaultClientId, interest }:
             </Button>
             <Button type="submit" disabled={isSubmitting || mutation.isPending}>
               {(isSubmitting || mutation.isPending) && (
-                <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                <Loader2 className="mr-2 h-4 w-4 animate-spin" aria-hidden />
               )}
               {isEdit ? 'Save changes' : 'Create Interest'}
             </Button>