Add "Backups Subscription not found" states.

app/src/main/java/org/thoughtcrime/securesms/keyvalue/BackupValues.kt

@@ -43,6 +43,7 @@ class BackupValues(store: KeyValueStore) : SignalStoreValues(store) {
     private const val KEY_ARCHIVE_UPLOAD_STATE = "backup.archiveUploadState"
 
     private const val KEY_BACKUP_UPLOADED = "backup.backupUploaded"
+    private const val KEY_SUBSCRIPTION_STATE_MISMATCH = "backup.subscriptionStateMismatch"
 
     private val cachedCdnCredentialsExpiresIn: Duration = 12.hours
   }
@@ -73,6 +74,12 @@ class BackupValues(store: KeyValueStore) : SignalStoreValues(store) {
    */
   val latestBackupTier: MessageBackupTier? by enumValue(KEY_LATEST_BACKUP_TIER, null, MessageBackupTier.Serializer)
 
+  /**
+   * Denotes if there was a mismatch detected between the user's Signal subscription, on-device Google Play subscription,
+   * and what zk authorization we think we have.
+   */
+  var subscriptionStateMismatchDetected: Boolean by booleanValue(KEY_SUBSCRIPTION_STATE_MISMATCH, false)
+
   /**
    * When seting the backup tier, we also want to write to the latestBackupTier, as long as
    * the value is non-null. This gives us a 1-deep history of the selected backup tier for

app/src/main/java/org/thoughtcrime/securesms/keyvalue/InAppPaymentValues.kt

@@ -469,6 +469,7 @@ class InAppPaymentValues internal constructor(store: KeyValueStore) : SignalStor
         }
         markDonationManuallyCancelled()
       } else {
+        SignalStore.backup.subscriptionStateMismatchDetected = false
         markBackupSubscriptionpManuallyCancelled()
 
         SignalStore.backup.disableBackups()
@@ -513,6 +514,7 @@ class InAppPaymentValues internal constructor(store: KeyValueStore) : SignalStor
       } else {
         clearBackupSubscriptionManuallyCancelled()
 
+        SignalStore.backup.subscriptionStateMismatchDetected = false
         SignalStore.backup.backupTier = MessageBackupTier.PAID
         SignalStore.uiHints.markHasEverEnabledRemoteBackups()
       }