feat(sms): NotificationListForm adapter-gated Type selector + per-type recipients (S7)

src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/INotificationChannelCatalog.cs

@@ -0,0 +1,21 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Services;
+
+/// <summary>
+/// Exposes the set of notification delivery channels that actually have a registered
+/// delivery adapter, so the Central UI never offers a notification-list Type that the
+/// central node cannot deliver. The list is derived from the registered
+/// <see cref="ZB.MOM.WW.ScadaBridge.NotificationOutbox.Delivery.INotificationDeliveryAdapter"/>
+/// set (each adapter handles a single <see cref="NotificationType"/>) rather than from
+/// the <see cref="NotificationType"/> enum, so adding/removing an adapter changes the UI
+/// options automatically.
+/// </summary>
+public interface INotificationChannelCatalog
+{
+    /// <summary>
+    /// The distinct notification channels that have a registered delivery adapter,
+    /// in a stable order. Never empty in a correctly configured central node.
+    /// </summary>
+    IReadOnlyList<NotificationType> SupportedChannels { get; }
+}

src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/NotificationChannelCatalog.cs

@@ -0,0 +1,36 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+using ZB.MOM.WW.ScadaBridge.NotificationOutbox.Delivery;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Services;
+
+/// <summary>
+/// Default <see cref="INotificationChannelCatalog"/> that derives the supported channels
+/// from the registered <see cref="INotificationDeliveryAdapter"/> set. The central Host
+/// registers the Email + SMS adapters (see <c>AddNotificationOutbox</c>) into the same DI
+/// container that hosts the Central UI, so projecting each adapter's
+/// <see cref="INotificationDeliveryAdapter.Type"/> yields exactly the channels the central
+/// node can actually deliver — no hardcoded <c>{Email, Sms}</c> list to drift.
+/// </summary>
+public sealed class NotificationChannelCatalog : INotificationChannelCatalog
+{
+    /// <summary>
+    /// Initializes the catalog from the registered delivery adapters, snapshotting the
+    /// distinct channel set once (the adapter registrations are fixed for the process
+    /// lifetime). Ordering follows the <see cref="NotificationType"/> enum so the UI Type
+    /// selector renders in a stable order regardless of adapter registration order.
+    /// </summary>
+    /// <param name="adapters">The registered delivery adapters (one per channel).</param>
+    public NotificationChannelCatalog(IEnumerable<INotificationDeliveryAdapter> adapters)
+    {
+        ArgumentNullException.ThrowIfNull(adapters);
+
+        SupportedChannels = adapters
+            .Select(a => a.Type)
+            .Distinct()
+            .OrderBy(t => (int)t)
+            .ToArray();
+    }
+
+    /// <inheritdoc />
+    public IReadOnlyList<NotificationType> SupportedChannels { get; }
+}