fix(contacts): treat Iranian mobile formats as one person

Tahesab import still replaces the name and keeps the previous name.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/prisma/schema.prisma

@@ -3779,3 +3779,9 @@ model AttendanceEvent {
   @@index([organizationId, userId, at])
   @@unique([organizationId, userId, kind, sessionStartedAt])
 }
+
+/// علامت یک‌بار اجرای اصلاح داده
+model DataFix {
+  key    String   @id
+  doneAt DateTime @default(now())
+}