attempt to fix test txs

lib/models/bank.dart

@@ -113,6 +113,23 @@ class BankTransaction {
   /// Exact match for copying notes (same description + amount + currency).
   String get exactKey => '$descriptionKey|$amount|$currency';
 
+  static String stripManualStamp(String description) =>
+      description.replaceFirst(RegExp(r' ·#\d+$'), '');
+
+  /// True when [other] is the same row for delete/tombstone matching.
+  ///
+  /// Uses id first, then date + cents + currency + description (stamp-insensitive),
+  /// so PocketBase float/amount rehydration cannot bypass a local delete.
+  bool matchesForDelete(BankTransaction other) {
+    if (id == other.id) return true;
+    if (date != other.date) return false;
+    if (currency.toUpperCase() != other.currency.toUpperCase()) return false;
+    if ((amount * 100).round() != (other.amount * 100).round()) return false;
+    if (descriptionKey == other.descriptionKey) return true;
+    return stripManualStamp(description).trim().toLowerCase() ==
+        stripManualStamp(other.description).trim().toLowerCase();
+  }
+
   BankTransaction copyWith({
     String? date,
     String? description,