feat(settings): add menu/show_to_user and public get_settings for client apps

Co-authored-by: Cursor <cursoragent@cursor.com>

database/schema/mysql-schema.sql.reference

@@ -708,6 +708,8 @@ CREATE TABLE `settings` (
   `deleted_at` timestamp NULL DEFAULT NULL,
   `is_active` tinyint DEFAULT NULL,
   `type` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `menu` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `show_to_user` tinyint(1) NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`) USING BTREE
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1;