some changes

apps/herd/migrations/0015_alter_herd_postal.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0 on 2025-08-06 07:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0014_alter_herd_latitude_alter_herd_longitude'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='herd',
+            name='postal',
+            field=models.CharField(help_text='herd postal code', max_length=20, null=True),
+        ),
+    ]