Achievement unicity && management pop-up behaviour

apps/family/migrations/0005_alter_achievement_unique_together.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.2.4 on 2025-08-13 20:26
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('family', '0004_remove_challenge_obtained'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='achievement',
+            unique_together={('challenge', 'family')},
+        ),
+    ]