show classname instead of teacher name in teacher timetable view

lib/state/app/modules/capabilities/bloc/capabilities_state.dart

@@ -12,6 +12,8 @@ abstract class CapabilitiesState with _$CapabilitiesState {
     // client-side clamp; the (server-narrowed) school year alone governs.
     int? timetablePastDays,
     int? timetableFutureDays,
+    // LDAP user type ('TEACHER' | 'STUDENT' | 'STAFF'); null = unknown.
+    String? userType,
     // Whether a capability response (or a definitive failure) has been
     // observed at least once this session. Lets the UI distinguish "still
     // unknown" from "confirmed not allowed".