feat: add user and role view sheets with detailed information display

- Created UserViewSheet component to display user details including username, full name, role, status, and timestamps.
- Created RoleViewSheet component to display role details including name, level, status, creation date, and associated permissions.
- Introduced permissions configuration in a new permissions.ts file, defining categories and permission codes for better management.
- Implemented middleware for authentication, ensuring access control for protected routes.

distribution_fe/app/(dashboard)/network/regions/_components/region-sheet.tsx

@@ -50,7 +50,9 @@ export function RegionSheet({ open, onClose, region, readOnly = false, onSuccess
           .then((res) => {
             if (!form.getValues('code')) form.setValue('code', res.code)
           })
-          .catch(() => {})
+          .catch(() => {
+            toast.add({ title: 'Could not suggest a code — enter one manually', type: 'warning' })
+          })
       }
     }
   }, [open, region])