updated db migration

database/migrations/20270101000026-create-user-tiers.js

@@ -0,0 +1,31 @@
+'use strict';
+
+// `tier` started as ENUM('free','premium','exclusive') but 20260101000065
+// dropped its CHECK constraint entirely — free-form STRING now, matching
+// any tier_categories.slug value.
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('user_tiers', {
+      tier_id:    { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
+      user_id:    { type: Sequelize.BIGINT, allowNull: false, references: { model: 'users', key: 'user_id' }, onDelete: 'CASCADE' },
+      tier:       { type: Sequelize.STRING(20), allowNull: false, defaultValue: 'free' },
+      status:     { type: Sequelize.ENUM('active', 'expired', 'revoked'), allowNull: false, defaultValue: 'active' },
+      starts_at:  { type: Sequelize.DATE, allowNull: false, defaultValue: Sequelize.NOW },
+      expires_at: { type: Sequelize.DATE, allowNull: true },
+      granted_by: { type: Sequelize.BIGINT, allowNull: true },
+      revoked_by: { type: Sequelize.BIGINT, allowNull: true },
+      revoked_at: { type: Sequelize.DATE, allowNull: true },
+      notes:      { type: Sequelize.TEXT, allowNull: true },
+      plan_id:    { type: Sequelize.BIGINT, allowNull: true, references: { model: 'tier_plans', key: 'plan_id' }, onUpdate: 'CASCADE', onDelete: 'SET NULL' },
+      createdAt:  { type: Sequelize.DATE, allowNull: false },
+      updatedAt:  { type: Sequelize.DATE, allowNull: false },
+    });
+
+    await queryInterface.addIndex('user_tiers', ['user_id']);
+    await queryInterface.addIndex('user_tiers', ['status']);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.dropTable('user_tiers');
+  },
+};