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/AdminSidebar.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useEffect, useRef, useCallback, KeyboardEvent, ComponentType } from "react";
+import { useState, useEffect, useRef, useCallback, useMemo, KeyboardEvent, ComponentType } from "react";
 import Link from "next/link";
 import { usePathname, useRouter } from "next/navigation";
 import {
@@ -165,17 +165,21 @@ export default function AdminSidebar({
    * Honors role-gating (Command Center) and add-on gating (Water Log, Route Trace).
    * If `enabledAddons` is undefined, add-on-gated items are shown (no gating).
    */
-  const visibleItems: NavItemDef[] = NAV_GROUPS.flatMap((group) => {
-    return group.items.filter((item) => {
-      if (item.requiresPlatformAdmin && userRole !== "platform_admin") {
-        return false;
-      }
-      if (item.addonKey && enabledAddons && enabledAddons[item.addonKey] === false) {
-        return false;
-      }
-      return true;
-    });
-  });
+  const visibleItems = useMemo<NavItemDef[]>(
+    () =>
+      NAV_GROUPS.flatMap((group) =>
+        group.items.filter((item) => {
+          if (item.requiresPlatformAdmin && userRole !== "platform_admin") {
+            return false;
+          }
+          if (item.addonKey && enabledAddons && enabledAddons[item.addonKey] === false) {
+            return false;
+          }
+          return true;
+        }),
+      ),
+    [userRole, enabledAddons],
+  );
 
   /**
    * Groups rendered, with empty ones removed. The Communications group is
@@ -260,7 +264,7 @@ export default function AdminSidebar({
         if (mobileOpen) closeMobileMenu();
       }
     },
-    [router, mobileOpen, closeMobileMenu, visibleItems.length],
+    [router, mobileOpen, closeMobileMenu, visibleItems],
   );
 
   async function handleLogout() {