修复线下提号后商品仍显示在「已上架」的问题

创建提号时将 listing/account 置为 rented 并记录状态事件，与正常订单锁定一致；完成提号对齐 completed/offline；取消提号恢复上架。补充 migration 修复历史数据。

backend/migrations/000027_pickup_lock_listing_status.sql

@@ -0,0 +1,46 @@
+-- +goose Up
+-- +goose StatementBegin
+
+-- 进行中的线下提号：listing 应从「已上架」移出，与正常订单锁定一致（status=rented）
+UPDATE rental_listings l
+JOIN admin_pickups p ON p.listing_id = l.id AND p.status = 'picking_up'
+SET l.status = 'rented',
+    l.in_transaction = 1
+WHERE l.status = 'published';
+
+UPDATE game_accounts a
+JOIN admin_pickups p ON p.account_id = a.id AND p.status = 'picking_up'
+SET a.status = 'rented'
+WHERE a.status IN ('published', 'draft', '');
+
+-- 已完成的线下提号：listing 应为 completed，账号下线（兜底历史数据）
+UPDATE rental_listings l
+JOIN admin_pickups p ON p.listing_id = l.id AND p.status = 'completed'
+SET l.status = 'completed',
+    l.in_transaction = 0,
+    l.published_at = NULL
+WHERE l.status IN ('published', 'rented');
+
+UPDATE game_accounts a
+JOIN admin_pickups p ON p.account_id = a.id AND p.status = 'completed'
+SET a.status = 'offline'
+WHERE a.status NOT IN ('offline', 'sealed', 'abnormal');
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+-- 回滚仅恢复「进行中提号」的锁定（completed 终态不回滚，避免误恢复可租）
+UPDATE rental_listings l
+JOIN admin_pickups p ON p.listing_id = l.id AND p.status = 'picking_up'
+SET l.status = 'published',
+    l.in_transaction = 1
+WHERE l.status = 'rented';
+
+UPDATE game_accounts a
+JOIN admin_pickups p ON p.account_id = a.id AND p.status = 'picking_up'
+SET a.status = 'published'
+WHERE a.status = 'rented';
+
+-- +goose StatementEnd