feat: refine native iOS chat experience

Sources/App/SettingsStore.swift

@@ -36,8 +36,9 @@ final class SettingsStore: ObservableObject {
             d.set(Self.defaultServerURL, forKey: Keys.serverURL)
         }
         let storedVoice = d.string(forKey: Keys.voiceID)
-        voiceID = Voices.all.contains { $0.id == storedVoice } ? (storedVoice ?? "") : Voices.defaultID
+        voiceID = Voices.restoredID(storedVoice)
         textMode = d.bool(forKey: Keys.textMode)
+        d.set(voiceID, forKey: Keys.voiceID)
     }
 
     var trimmedServerURL: String {