test(sms): regression tests for code-review fixes

Lock the behaviors changed by the review-fix commit + the security invariants:

- ManagementActorTests: UpdateSms/SmtpConfig now require Administrator (updated the
  existing success cases from Designer); + UpdateSmsConfig_WithDesignerRole_Returns
  Unauthorized and _WithEmptyAuthToken_PreservesExistingToken regression tests.
- SecretEncryptionTests: SmsConfiguration.AuthToken stored-encrypted round-trip +
  null round-trip (AccountSid stays plaintext) — guards ApplySecretColumnEncryption.
- ArtifactDiffTests: CompareSmsConfiguration New/Identical/Modified + the secret
  presence-only invariant (value never echoed, presence-flip shows <present> only).
- UpdateCommandContractTests: notification sms update core fields Required, --auth-token optional.
- NotificationListsPageTests: SMS recipient badge shows phone, not "Name <>".
- NotificationOutboxActorDispatchTests: SMS-typed notification routes to the SMS
  adapter (StubAdapter.Type made configurable), not the Email adapter.
- NotificationRecipientTests (new): ForEmail/ForSms + public-ctor invariants.

tests/ZB.MOM.WW.ScadaBridge.NotificationOutbox.Tests/NotificationOutboxActorDispatchTests.cs

@@ -52,15 +52,17 @@ public class NotificationOutboxActorDispatchTests : TestKit
         private readonly Func<DeliveryOutcome> _outcome;
         private readonly TimeSpan _delay;
 
-        public StubAdapter(Func<DeliveryOutcome> outcome, TimeSpan? delay = null)
+        public StubAdapter(Func<DeliveryOutcome> outcome, TimeSpan? delay = null,
+            NotificationType type = NotificationType.Email)
         {
             _outcome = outcome;
             _delay = delay ?? TimeSpan.Zero;
+            Type = type;
         }
 
         public int CallCount;
 
-        public NotificationType Type => NotificationType.Email;
+        public NotificationType Type { get; }
 
         public async Task<DeliveryOutcome> DeliverAsync(
             Notification notification, CancellationToken cancellationToken = default)
@@ -151,6 +153,35 @@ public class NotificationOutboxActorDispatchTests : TestKit
         });
     }
 
+    [Fact]
+    public void Dispatch_SmsTypedNotification_RoutesToSmsAdapter_NotEmailAdapter()
+    {
+        // NotificationOutbox-NNN: the Type-keyed adapter selection must land an SMS-typed
+        // notification on the SMS adapter (not the Email one) and apply its outcome.
+        SetupSmtpRetryPolicy(maxRetries: 5, retryDelay: TimeSpan.FromMinutes(1));
+        var notification = MakeNotification(type: NotificationType.Sms);
+        _outboxRepository.GetDueAsync(Arg.Any<DateTimeOffset>(), Arg.Any<int>(), Arg.Any<CancellationToken>())
+            .Returns(new[] { notification });
+        var emailAdapter = new StubAdapter(() => DeliveryOutcome.Success("ops@example.com"),
+            type: NotificationType.Email);
+        var smsAdapter = new StubAdapter(() => DeliveryOutcome.Success("+15551234567"),
+            type: NotificationType.Sms);
+        var actor = CreateActor([emailAdapter, smsAdapter]);
+
+        actor.Tell(InternalMessages.DispatchTick.Instance);
+
+        AwaitAssert(() =>
+        {
+            Assert.Equal(1, smsAdapter.CallCount);
+            Assert.Equal(0, emailAdapter.CallCount);
+            _outboxRepository.Received(1).UpdateAsync(
+                Arg.Is<Notification>(n =>
+                    n.Status == NotificationStatus.Delivered &&
+                    n.ResolvedTargets == "+15551234567"),
+                Arg.Any<CancellationToken>());
+        });
+    }
+
     [Fact]
     public void Success_MarksNotificationDelivered_WithResolvedTargets()
     {