feat: add superadmin management

services/api.ts

@@ -10,6 +10,15 @@ export interface ApiUser {
   role: ApiRole;
 }
 
+export interface ManagedUser {
+  id: string;
+  email: string;
+  name: string;
+  role: ApiRole;
+  isActive: boolean;
+  createdAt: string;
+}
+
 interface Session {
   token: string;
   user: ApiUser;
@@ -67,3 +76,15 @@ export const authApi = {
     return apiRequest<{ user: ApiUser }>('/auth/me');
   },
 };
+
+export const adminApi = {
+  async listUsers() {
+    return apiRequest<{ data: ManagedUser[] }>('/admin/users');
+  },
+  async updateUser(userId: string, update: Partial<Pick<ManagedUser, 'role' | 'isActive'>>) {
+    return apiRequest<{ data: ManagedUser }>(`/admin/users/${userId}`, {
+      method: 'PATCH',
+      body: JSON.stringify(update),
+    });
+  },
+};