增加 迁移回滚功能实现

server/migrations/006_createThemeSettingsTable.ts

@@ -0,0 +1,21 @@
+import type { MigrationLiveDefinition } from '@d8d-appcontainer/types'
+
+const createThemeSettingsTable: MigrationLiveDefinition = {
+  name: "create_theme_settings_table",
+  up: async (api) => {
+    await api.schema.createTable('theme_settings', (table) => {
+      table.increments('id').primary();
+      table.integer('user_id').unsigned().references('id').inTable('users').onDelete('CASCADE');
+      table.jsonb('settings').comment('主题设置');
+      table.timestamps(true, true);
+      
+      // 添加索引
+      table.index('user_id');
+    });
+  },
+  down: async (api) => {
+    await api.schema.dropTable('theme_settings');
+  }
+}
+
+export default createThemeSettingsTable;