feat: add comprehensive GitHub workflow and development tools

app/stiftung/migrations/0020_destinataernotiz.py

@@ -0,0 +1,34 @@
+# Generated by Django 5.0.6 on 2025-08-29 16:05
+
+import django.db.models.deletion
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stiftung', '0019_destinataerunterstuetzung'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DestinataerNotiz',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('titel', models.CharField(blank=True, max_length=200, verbose_name='Titel')),
+                ('text', models.TextField(blank=True, verbose_name='Notiz')),
+                ('datei', models.FileField(blank=True, null=True, upload_to='destinataer_notizen/', verbose_name='Anhang')),
+                ('erstellt_am', models.DateTimeField(auto_now_add=True, verbose_name='Erstellt am')),
+                ('destinataer', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='notizen_eintraege', to='stiftung.destinataer', verbose_name='Destinatär')),
+                ('erstellt_von', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL, verbose_name='Erstellt von')),
+            ],
+            options={
+                'verbose_name': 'Destinatär-Notiz',
+                'verbose_name_plural': 'Destinatär-Notizen',
+                'ordering': ['-erstellt_am'],
+            },
+        ),
+    ]