feat: update order payment methods and refine profile edit functionality

- Replaced `Order.PaymentMethod` options with "cash" and "card" while adjusting related code and templates
- Set "cash" as the default payment method for orders and checkout forms
- Added profile editing functionality with `ProfileForm`, allowing users to update names
- Improved feedback messages across profile and order management templates
- Updated catalog to handle empty filter results with a "reset filters" option

orders/migrations/0004_alter_order_payment_method.py

@@ -0,0 +1,18 @@
+# Generated by Django 6.0.5 on 2026-05-29 16:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0003_cartitem_selected_color'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='order',
+            name='payment_method',
+            field=models.CharField(choices=[('cash', 'Наличкой при получении'), ('card', 'Картой при получении')], default='cash', max_length=16, verbose_name='Способ оплаты'),
+        ),
+    ]