add default storage

src/project_name/settings/prod.py

@@ -1,6 +1,9 @@
 from .base import *  # noqa
 
 STORAGES = {
+    "default": {
+        "BACKEND": "django.core.files.storage.FileSystemStorage",
+    },
     "staticfiles": {
         "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
     },

src/test_app/migrations/0001_initial.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.1 on 2023-05-10 11:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='TestModel',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+                ('description', models.TextField()),
+                ('file', models.FileField(upload_to='test_app/files/')),
+            ],
+        ),
+    ]