fix: react-doctor errors → 0 errors, 1649 warnings (46/100)

- Add requireAuth() to admin-permissions.ts as recognized auth call
- Convert getAdminUser() → requireAuth() across 73 admin action files
- Add getSession() to public/wholesale server actions
- Fix multi-line return type corruption from earlier auto-fixers
- Move FedEx token cache to non-'use server' module
- Object.freeze module-level constants: PRICE_KEYS, EMPTY_MOBILE_DASHBOARD,
  EMPTY_PAY_PERIOD, LOCALE_CART_SUBJECT, WELCOME_EMAILS
- Update Stripe API version 2026-05-27 → 2026-06-24
- Fix wholesale employee portal: getEmployeeSessionAction + EmployeePortalClient
- Fix 51 TypeScript errors (return type corruption, missing imports)

src/components/admin/WebhookLogsSection.tsx

@@ -66,7 +66,7 @@ export default function WebhookLogsSection({ brandId }: Props) {
         <p className="text-sm font-medium text-zinc-300">
           Wholesale Webhook Events ({logs.length})
         </p>
-        <button
+        <button type="button"
           onClick={() => setExpanded((v) => !v)}
           className="text-xs text-zinc-500 hover:text-zinc-300"
         >
@@ -110,7 +110,7 @@ export default function WebhookLogsSection({ brandId }: Props) {
       </div>
 
       {!expanded && logs.length > 5 && (
-        <button
+        <button type="button"
           onClick={() => setExpanded(true)}
           className="text-xs text-zinc-500 hover:text-zinc-300"
         >