add payment_link and banks

apps/payments/migrations/0003_paymentnotice_issuance_key.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.1 on 2026-10-05 11:05
+
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('payments', '0002_initial_configuration'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='paymentnotice',
+            name='issuance_key',
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
+        ),
+    ]