migrate db to support confirmation emails

migrations/20240226144038_make_status_not_null_in_subscriptions.sql

@@ -0,0 +1,8 @@
+BEGIN;
+    -- Backfill `status` for historical entries
+    UPDATE subscriptions
+        SET status = 'confirmed'
+        WHERE status IS NULL;
+    -- Make `status` mandatory
+    ALTER TABLE subscriptions ALTER COLUMN status SET NOT NULL;
+COMMIT;