fix: session status stuck on Connection in progress on devices without GMS (#1092)

* fix: seed initial push tokens and call state in SessionStatusCubit

On devices without Google Mobile Services (e.g. Huawei), PushTokensBloc
never emits after initialization because GMS availability check returns a
terminal status and aborts token retrieval without emitting any state.

As a result, _lastPushTokensState remained null indefinitely, causing
the condition `pushTokens != null && call != null` in _emitCombinedStatus
to never pass — so the UI was stuck at SessionStatus.inProgress regardless
of the actual signaling/registration state.

Fix: seed _lastPushTokensState and _lastCallState from the blocs' initial
states in the constructor, so subsequent _onCallChanged callbacks can
emit the correct status even when PushTokensBloc never emits.

* refactor: remove unused optional params from _emitCombinedStatus

Author: SERDUN

lib/features/session_status/bloc/session_status_cubit.dart

@@ -16,10 +16,12 @@ final _logger = Logger('SessionStatusCubit');
 class SessionStatusCubit extends Cubit<SessionStatusState> {
   SessionStatusCubit({required PushTokensBloc pushTokensBloc, required CallBloc callBloc})
     : super(const SessionStatusState()) {
+    _lastPushTokensState = pushTokensBloc.state;
+    _lastCallState = callBloc.state;
     _pushTokensSubscription = pushTokensBloc.stream.listen(_onPushTokensChanged);
     _callSubscription = callBloc.stream.listen(_onCallChanged);
 
-    _emitCombinedStatus(pushTokensBloc.state, callBloc.state);
+    _emitCombinedStatus();
   }
 
   late final StreamSubscription<PushTokensState> _pushTokensSubscription;
@@ -38,11 +40,11 @@ class SessionStatusCubit extends Cubit<SessionStatusState> {
     _emitCombinedStatus();
   }
 
-  void _emitCombinedStatus([PushTokensState? initialPushTokens, CallState? initialCall]) {
+  void _emitCombinedStatus() {
     _logger.finest('emitCombinedStatus: $_lastPushTokensState, $_lastCallState');
 
-    final pushTokens = initialPushTokens ?? _lastPushTokensState;
-    final call = initialCall ?? _lastCallState;
+    final pushTokens = _lastPushTokensState;
+    final call = _lastCallState;
 
     if (pushTokens != null && call != null) {
       emit(state.copyWith(status: _mapCallStatusToSessionStatus(call.status, pushTokens)));