add /shipping_vouchers endpoint

core/tickets/migrations/0009_shippingvoucher.py

@@ -0,0 +1,25 @@
+# Generated by Django 4.2.7 on 2024-06-23 00:47
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tickets', '0008_alter_issuethread_options_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ShippingVoucher',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('voucher', models.CharField(max_length=255)),
+                ('type', models.CharField(max_length=255)),
+                ('timestamp', models.DateTimeField(auto_now_add=True)),
+                ('used_at', models.DateTimeField(null=True)),
+                ('issue_thread', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='shipping_vouchers', to='tickets.issuethread')),
+            ],
+        ),
+    ]