Added accessibility support to in-app notifications on the ContentViewModel view model in the Sample app.

Apps/Attendi/View Models/ContentViewModel.swift

@@ -1,5 +1,5 @@
+import Accessibility
 import Foundation
-import Notifying
 import Observation
 import OSLog
 import Recording
@@ -153,8 +153,8 @@ private extension ContentView.Model {
         await SpeechTranscriber.supportedLocale(equivalentTo: locale)
     }
 
-    /// Posts a notification for a download event of the given locale, scheduling its automatic dismissal a few seconds later —
-    /// the only way a notification is dismissed.
+    /// Posts a notification for a download event of the given locale, announcing it to assistive technologies and scheduling its
+    /// automatic dismissal a few seconds later — the only way a notification is dismissed.
     ///
     /// - Parameters:
     ///   - event: The download event to notify.
@@ -170,6 +170,10 @@ private extension ContentView.Model {
 
         notifications.append(notification)
 
+        AccessibilityNotification.Announcement(
+            String(localized: notification.textMessage)
+        ).post()
+
         Task {
             try? await Task.sleep(for: Constant.Delay.dismissal)