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/0011_add_asset.py

@@ -0,0 +1,31 @@
+# Generated by Django 5.2.15 on 2026-07-24 10:13
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('artifacts', '0010_backfill_sizes_and_profiles'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Asset',
+            fields=[
+                ('id', models.CharField(max_length=12, primary_key=True, serialize=False)),
+                ('path', models.CharField(max_length=500)),
+                ('content_type', models.CharField(max_length=100)),
+                ('size_bytes', models.BigIntegerField(default=0)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('artifact', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='assets', to='artifacts.artifact')),
+                ('owner', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='assets', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+    ]