fix: confirm module shutdown before disconnect or release

prisma/migrations/20260803143000_align_group_enrollment_timestamps/migration.sql

@@ -0,0 +1,31 @@
+DO $$
+DECLARE
+  target record;
+BEGIN
+  FOR target IN
+    SELECT * FROM (VALUES
+      ('student_enrollments', 'created_at'),
+      ('student_enrollments', 'updated_at'),
+      ('student_enrollments', 'removed_at'),
+      ('student_groups', 'created_at'),
+      ('student_groups', 'updated_at'),
+      ('student_group_members', 'created_at')
+    ) AS targets(table_name, column_name)
+  LOOP
+    IF EXISTS (
+      SELECT 1
+      FROM information_schema.columns
+      WHERE table_schema = 'public'
+        AND table_name = target.table_name
+        AND column_name = target.column_name
+        AND data_type = 'timestamp without time zone'
+    ) THEN
+      EXECUTE format(
+        'ALTER TABLE %I ALTER COLUMN %I TYPE TIMESTAMPTZ(3) USING %I AT TIME ZONE ''UTC''',
+        target.table_name,
+        target.column_name,
+        target.column_name
+      );
+    END IF;
+  END LOOP;
+END $$;