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/app/admin/water-log/headgates/[id]/page.tsx

@@ -15,11 +15,12 @@ type HeadgatePageProps = {
 };
 
 export default async function WaterLogHeadgatePage({ params, searchParams }: HeadgatePageProps) {
-  const { id } = await params;
-  const { from } = await searchParams;
-
-  const adminUser = await getAdminUser();
-  const waterSession = await getWaterAdminSession();
+  const [{ id }, { from }, adminUser, waterSession] = await Promise.all([
+    params,
+    searchParams,
+    getAdminUser(),
+    getWaterAdminSession(),
+  ]);
 
   const isSiteAdmin =
     adminUser?.role === "platform_admin" ||