fix increased twonly safe backup

lib/main.dart

@@ -65,6 +65,7 @@ void main() async {
   twonlyDB = TwonlyDB();
 
   await twonlyDB.messagesDao.purgeMessageTable();
+  await twonlyDB.receiptsDao.purgeReceivedReceipts();
   unawaited(MediaFileService.purgeTempFolder());
 
   await initFileDownloader();

lib/src/database/daos/receipts.dao.dart

@@ -51,6 +51,18 @@ class ReceiptsDao extends DatabaseAccessor<TwonlyDB> with _$ReceiptsDaoMixin {
         .go();
   }
 
+  Future<void> purgeReceivedReceipts() async {
+    await (delete(receivedReceipts)
+          ..where(
+            (t) => (t.createdAt.isSmallerThanValue(
+              clock.now().subtract(
+                    const Duration(days: 25),
+                  ),
+            )),
+          ))
+        .go();
+  }
+
   Future<Receipt?> insertReceipt(ReceiptsCompanion entry) async {
     try {
       var insertEntry = entry;

lib/src/database/twonly.db.dart

@@ -166,6 +166,7 @@ class TwonlyDB extends _$TwonlyDB {
           ))
         .go();
     await delete(receipts).go();
+    await delete(receivedReceipts).go();
     await update(contacts).write(
       const ContactsCompanion(
         avatarSvgCompressed: Value(null),