fix(db): Convert owners triggers from BEFORE to AFTER

libs/shared/shared/django_apps/legacy_migrations/migrations/0011_convert_owners_trigger_to_after.py

@@ -0,0 +1,31 @@
+# Generated by Django on 2025-12-09
+# Fix for TriggeredDataChangeViolation: convert BEFORE trigger to AFTER trigger
+# BEFORE triggers cannot modify the same table they are triggered on
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("legacy_migrations", "0010_fix_owners_trigger_self_modification"),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            """
+            -- Drop existing BEFORE triggers
+            drop trigger if exists owners_before_insert on owners;
+            drop trigger if exists owners_before_update on owners;
+
+            -- Recreate as AFTER triggers (function name unchanged, behavior is the same)
+            create trigger owners_after_insert after insert on owners
+            for each row
+            execute procedure owners_before_insert_or_update();
+
+            create trigger owners_after_update after update on owners
+            for each row
+            when (new.username is not null and new.username is distinct from old.username)
+            execute procedure owners_before_insert_or_update();
+            """
+        ),
+    ]