Function canAccessRoute

canAccessRoute(user: User | null, route: string): boolean
Check if user can access a route
Parameters
- user: User | null
  User object with role
- route: string
  Route path (e.g., '/app', '/admin', '/superadmin')
Returns boolean
true if user can access the route
Example
```
canAccessRoute(user, '/admin')
```
- Defined in src/lib/utils/permissions.ts:118