Initial public commit

Daybook: a self-hosted, multi-user Django + DRF app where agents, scripts,
or people publish artifacts and each logged-in user browses their own
time-ordered, label-filterable feed.

This squashes prior local development history (kept privately on a separate
branch) into a single clean starting point for the public repository.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

artifacts/migrations/0009_quota_and_keep.py

@@ -0,0 +1,34 @@
+# Generated by Django 5.2.15 on 2026-07-24 07:15
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('artifacts', '0008_artifact_read_at'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='artifact',
+            name='is_kept',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='artifact',
+            name='size_bytes',
+            field=models.BigIntegerField(default=0),
+        ),
+        migrations.CreateModel(
+            name='UserProfile',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quota_bytes', models.BigIntegerField(default=1073741824)),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, related_name='profile', to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]