2026-05-25: 等级体系升级(20级)+论坛二级分类+会员空间

prisma/migrations/20260525000000_expand_user_levels/migration.sql

@@ -0,0 +1,16 @@
+-- AlterEnum: Map old enum values to new 20-level system
+-- Step 1: Change the column to VARCHAR temporarily
+ALTER TABLE `users` MODIFY COLUMN `level` VARCHAR(20) NOT NULL DEFAULT 'LV01';
+
+-- Step 2: Map old enum values to new ones
+UPDATE `users` SET `level` = 'LV01' WHERE `level` = 'BRONZE';
+UPDATE `users` SET `level` = 'LV03' WHERE `level` = 'SILVER';
+UPDATE `users` SET `level` = 'LV06' WHERE `level` = 'GOLD';
+UPDATE `users` SET `level` = 'LV10' WHERE `level` = 'PLATINUM';
+
+-- AlterTable: Add bio field
+ALTER TABLE `users` ADD COLUMN `bio` TEXT NULL;
+
+-- AlterTable: Add parentId for ForumCategory hierarchy
+ALTER TABLE `forum_categories` ADD COLUMN `parent_id` INT NULL;
+ALTER TABLE `forum_categories` ADD CONSTRAINT `forum_categories_parent_id_fkey` FOREIGN KEY (`parent_id`) REFERENCES `forum_categories`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;