feat(admin): Server Action'larla kullanıcı yönetimi ve gerçek oturumlu sayfalar

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/(app)/admin/kullanicilar/page.tsx

@@ -1,18 +1,18 @@
 import type { Metadata } from "next";
 import { PageHeader } from "@/components/page-header";
 import { UsersTable } from "@/features/admin-users/components/users-table";
-import { MOCK_ADMIN_USERS } from "@/features/admin-users/mock";
-import { MOCK_SESSION_USER } from "@/features/auth/mock";
+import { listAdminUsers } from "@/features/admin-users/queries";
 import { tr } from "@/i18n/tr";
+import { requireRole } from "@/lib/dal";
 
 export const metadata: Metadata = { title: tr.adminUsers.title };
 
-export default function AdminUsersPage() {
-  // FAZ 3: const users = await listUsers() (Better Auth admin API)
+export default async function AdminUsersPage() {
+  const [admin, users] = await Promise.all([requireRole("admin"), listAdminUsers()]);
   return (
     <>
       <PageHeader title={tr.adminUsers.title} description={tr.adminUsers.description} />
-      <UsersTable initialUsers={MOCK_ADMIN_USERS} currentUserId={MOCK_SESSION_USER.id} />
+      <UsersTable users={users} currentUserId={admin.id} />
     </>
   );
 }