wip: modernized edit flow

src/Form/Model/BankAccountDto.php

@@ -33,6 +33,17 @@ class BankAccountDto
     #[Assert\IsTrue(message: 'Bitte akzeptieren Sie das SEPA-Mandat.')]
     public bool $sepaMandateAccepted = false;
 
+    public static function fromBankAccount(\App\BusProNet\Model\BankAccount $bankAccount): static
+    {
+        $instance = new static();
+        $instance->iban = $bankAccount->iban;
+        $instance->accountHolder = $bankAccount->holder;
+        $instance->bankName = $bankAccount->bankName;
+        $instance->sepaMandateAccepted = true;
+
+        return $instance;
+    }
+
     /**
      * Returns IBAN formatted with spaces for display (e.g., DE12 3456 7890 1234 5678 90).
      */