Update storage proto and handle invalid callHistory messages

protos/SignalStorage.proto

@@ -294,7 +294,7 @@ message AccountRecord {
   reserved /*backupsSubscriberCurrencyCode*/ 37;
   reserved /*backupsSubscriptionManuallyCancelled*/ 38;
   // Set to true after backups are enabled and one is uploaded.
-  optional bool hasBackup = 39;
+  reserved /*hasBackup*/ 39;
   // See zkgroup for integer particular values. Unset if backups are not enabled.
   optional uint64 backupTier = 40;
   IAPSubscriberData backupSubscriberData = 41;

ts/services/backups/export.preload.ts

@@ -1952,9 +1952,8 @@ export class BackupExportStream extends Readable {
       );
 
       if (!conversation) {
-        throw new Error(
-          `${logId}: callHistory message had unknown conversationId!`
-        );
+        log.error(`${logId}: callHistory message had unknown conversationId!`);
+        return { kind: NonBubbleResultKind.Drop };
       }
 
       const { callId } = message;

ts/services/storageRecordOps.preload.ts

@@ -566,8 +566,6 @@ export function toAccountRecord(
         ? donorSubscriptionManuallyCanceled
         : null,
 
-    // TODO: DESKTOP-9870
-    hasBackup: null,
     backupSubscriberData: generateBackupsSubscriberData(),
     backupTier: backupTier != null ? BigInt(backupTier) : null,