add message and comment

announcement/migrations/0007_delete_message.py

@@ -0,0 +1,16 @@
+# Generated by Django 5.0.6 on 2024-06-29 15:38
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('announcement', '0006_message'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='Message',
+        ),
+    ]