Added a discard button and error handling to the RecordingView view in the Recording package target.

Apps/Attendi/View Models/ContentViewModel.swift

@@ -1,5 +1,6 @@
 import Foundation
 import Observation
+import OSLog
 import Recording
 import Speech
 
@@ -30,6 +31,13 @@ extension ContentView {
         @ObservationIgnored
         let capturer: AudioCapturing
 
+        /// The logger that records the failures of the speech model asset management.
+        @ObservationIgnored
+        private let logger = Logger(
+            subsystem: Bundle.main.bundleIdentifier ?? "Attendi",
+            category: "ContentView.Model"
+        )
+
         /// The service that transcribes the recorded audio into text on device.
         @ObservationIgnored
         let transcriber: AudioTranscribing
@@ -65,7 +73,9 @@ extension ContentView {
         /// Preinstalls the speech model assets for the supported equivalent of ``locale``, so the first transcription in that locale
         /// does not have to download them mid-processing.
         ///
-        /// Failures are ignored on purpose: the transcribing service installs any missing assets itself as a fallback when a
+        /// The locale reservations of any other locales are released beforehand: the app transcribes a single locale at a time, and
+        /// the system only permits a limited number of reservations — exceeding it would make the installation request throw.
+        /// Failures are logged but not surfaced: the transcribing service installs any missing assets itself as a fallback when a
         /// transcription starts.
         func preinstallAssets() async {
             guard let locale = await SpeechTranscriber.supportedLocale(
@@ -74,18 +84,26 @@ extension ContentView {
                 return
             }
 
+            for reserved in await AssetInventory.reservedLocales where reserved != locale {
+                _ = await AssetInventory.release(reservedLocale: reserved)
+            }
+
             let transcriber = SpeechTranscriber(
                 locale: locale,
                 preset: .transcription
             )
 
-            guard let request = try? await AssetInventory.assetInstallationRequest(
-                supporting: [transcriber]
-            ) else {
-                return
-            }
+            do {
+                guard let request = try await AssetInventory.assetInstallationRequest(
+                    supporting: [transcriber]
+                ) else {
+                    return
+                }
 
-            try? await request.downloadAndInstall()
+                try await request.downloadAndInstall()
+            } catch {
+                logger.error("The speech model assets for the \"\(locale.identifier, privacy: .public)\" locale failed to preinstall: \(String(describing: error), privacy: .public)")
+            }
         }
 
         /// Returns the localized name of a locale for the locale picker.