fix(admin): resolve type errors in admin tab

- Fix cn import path to @/lib/core/utils/cn
- Use valid Badge variants (blue/gray/red/green instead of secondary/destructive)
- Type setRole param as 'user' | 'admin' union

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/settings/components/admin/admin.tsx

@@ -4,7 +4,7 @@ import { useMemo, useState } from 'react'
 import { useParams } from 'next/navigation'
 import { Badge, Button, Input as EmcnInput, Label, Skeleton, Switch } from '@/components/emcn'
 import { useSession } from '@/lib/auth/auth-client'
-import { cn } from '@/lib/utils'
+import { cn } from '@/lib/core/utils/cn'
 import {
   useAdminUsers,
   useBanUser,
@@ -177,15 +177,13 @@ export function Admin() {
                   </span>
                   <span className='flex-1 truncate text-[var(--text-secondary)]'>{u.email}</span>
                   <span className='w-[80px]'>
-                    <Badge variant={u.role === 'admin' ? 'default' : 'secondary'}>
-                      {u.role || 'user'}
-                    </Badge>
+                    <Badge variant={u.role === 'admin' ? 'blue' : 'gray'}>{u.role || 'user'}</Badge>
                   </span>
                   <span className='w-[80px]'>
                     {u.banned ? (
-                      <Badge variant='destructive'>Banned</Badge>
+                      <Badge variant='red'>Banned</Badge>
                     ) : (
-                      <Badge variant='secondary'>Active</Badge>
+                      <Badge variant='green'>Active</Badge>
                     )}
                   </span>
                   <span className='flex w-[180px] justify-end gap-[4px]'>

apps/sim/hooks/queries/admin-users.ts

@@ -59,7 +59,7 @@ export function useAdminUsers(offset: number, limit: number, enabled: boolean) {
 export function useSetUserRole() {
   const queryClient = useQueryClient()
   return useMutation({
-    mutationFn: async ({ userId, role }: { userId: string; role: string }) => {
+    mutationFn: async ({ userId, role }: { userId: string; role: 'user' | 'admin' }) => {
       const result = await client.admin.setRole({ userId, role })
       return result
     },