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-contract-tab.tsx

@@ -106,7 +106,7 @@ export function InterestContractTab({ interestId, clientId: _clientId }: Interes
   return (
     <div className="space-y-5">
       {docsLoading ? (
-        <Skeleton className="h-44 w-full rounded-lg" />
+        <Skeleton className="h-44 w-full rounded-lg" aria-hidden />
       ) : activeDoc ? (
         <ActiveContractCard
           doc={activeDoc}
@@ -145,7 +145,7 @@ export function InterestContractTab({ interestId, clientId: _clientId }: Interes
                     className="text-xs text-primary hover:underline inline-flex items-center gap-1"
                   >
                     Open
-                    <ExternalLink className="size-3" />
+                    <ExternalLink className="size-3" aria-hidden />
                   </Link>
                 )}
               </li>
@@ -232,7 +232,7 @@ function ActiveContractCard({
       <header className="flex items-start justify-between gap-3">
         <div className="min-w-0 flex-1 space-y-1">
           <div className="flex items-center gap-2 flex-wrap">
-            <FileSignature className="size-4 text-foreground" />
+            <FileSignature className="size-4 text-foreground" aria-hidden />
             <h2 className="truncate text-base font-semibold text-foreground">{doc.title}</h2>
             <StatusBadge status={doc.status} />
           </div>
@@ -261,7 +261,11 @@ function ActiveContractCard({
               onClick={() => remindAllMutation.mutate()}
               className="gap-1.5 [&_svg]:size-3.5"
             >
-              {remindAllMutation.isPending ? <Loader2 className="animate-spin" /> : <RefreshCw />}
+              {remindAllMutation.isPending ? (
+                <Loader2 className="animate-spin" aria-hidden />
+              ) : (
+                <RefreshCw />
+              )}
               Remind all
             </Button>
           )}
@@ -274,7 +278,7 @@ function ActiveContractCard({
         </h3>
         {signersLoading ? (
           <div className="flex items-center gap-2 text-sm text-muted-foreground">
-            <Loader2 className="size-3.5 animate-spin" /> Loading signers…
+            <Loader2 className="size-3.5 animate-spin" aria-hidden /> Loading signers…
           </div>
         ) : signers.length === 0 ? (
           <p className="text-sm text-muted-foreground italic">
@@ -287,7 +291,7 @@ function ActiveContractCard({
 
       <footer className="mt-3 flex flex-wrap items-center justify-between gap-2 text-xs text-muted-foreground">
         <p className="flex items-center gap-1.5">
-          <AlertTriangle className="size-3 text-amber-600" />
+          <AlertTriangle className="size-3 text-amber-600" aria-hidden />
           Reminders are rate-limited (max once per 7 days per signer).
         </p>
         <div className="flex items-center gap-1">
@@ -338,7 +342,7 @@ function EmptyContractState({
   return (
     <section className="rounded-xl border border-dashed bg-muted/20 p-8 text-center">
       <div className="mx-auto flex size-14 items-center justify-center rounded-full bg-background text-muted-foreground">
-        <FileSignature className="size-6" />
+        <FileSignature className="size-6" aria-hidden />
       </div>
       <h2 className="mt-4 text-base font-semibold text-foreground">
         No contract in flight for this interest
@@ -349,11 +353,11 @@ function EmptyContractState({
       </p>
       <div className="mt-5 flex flex-wrap items-center justify-center gap-2">
         <Button onClick={onUploadForSigning} size="sm" className="gap-1.5">
-          <FileSignature className="size-4" />
+          <FileSignature className="size-4" aria-hidden />
           Upload draft for signing
         </Button>
         <Button onClick={onUploadSigned} variant="outline" size="sm" className="gap-1.5">
-          <Upload className="size-4" />
+          <Upload className="size-4" aria-hidden />
           Upload paper-signed copy
         </Button>
       </div>
@@ -372,7 +376,7 @@ function StatusBadge({ status }: { status: DocumentRow['status'] }) {
         STATUS_TONES[status],
       )}
     >
-      {status === 'completed' && <CheckCircle2 className="mr-1 size-3" />}
+      {status === 'completed' && <CheckCircle2 className="mr-1 size-3" aria-hidden />}
       {STATUS_LABELS[status]}
     </Badge>
   );