fix: react-doctor control-has-associated-label 137→? (auto aria-labels)

Add aria-label to buttons (icon-only, pagination, action) and inputs
(placeholder-derived) via balanced-brace JSX parser. Files with complex
onClick expressions (deep brace nesting) skipped to avoid breakage.

src/components/admin/ProductTableClient.tsx

@@ -81,7 +81,7 @@ export default function ProductTableClient({ products }: Props) {
       {deleteError && (
         <div className="mx-5 my-3 rounded-lg border border-red-200 bg-red-50 px-4 py-3 text-sm text-red-700">
           {deleteError}{" "}
-          <button type="button" onClick={() => setDeleteError(null)} className="underline hover:no-underline">
+          <button type="button" onClick={() => setDeleteError(null)} className="underline hover:no-underline" aria-label="Dismiss">
             Dismiss
           </button>
         </div>