fix: resolve some bugs, architecture

schema/cleanup.sql

@@ -0,0 +1,10 @@
+SET FOREIGN_KEY_CHECKS = 0;
+
+DROP TABLE IF EXISTS
+  `translations`,
+  `password_resets`,
+  `contributors`,
+  `users`,
+  `languages`;
+
+SET FOREIGN_KEY_CHECKS = 1;