feat(purchase/): add purchase app

purchase/migrations/0001_initial.py

@@ -0,0 +1,28 @@
+# Generated by Django 6.0.3 on 2026-03-19 17:36
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('home', '0019_coursepage_description'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CoursePurchase',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('purchased_at', models.DateTimeField(auto_now_add=True)),
+                ('refunded', models.BooleanField(default=False)),
+                ('course', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='home.coursepage')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]