chore: 添加订单金额修复SQL脚本，应对签名失败导致金额缺失

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/repair_order_amount.sql

@@ -0,0 +1,51 @@
+-- ============================================================
+-- 修复订单金额 SQL 脚本
+-- 场景：ORC_RESULT 回调创建了订单和商品明细，但 ORDER 回调
+--       因签名验证失败被拒绝，导致 total_amount / paid_amount 为空
+-- 逻辑：根据 order_goods 表汇总(price × product_num) 补齐金额
+-- 日期：2026-07-20
+-- ============================================================
+
+-- 第一步：预览将要修复的订单（确认无误后再执行 UPDATE）
+SELECT
+    o.id,
+    o.order_no,
+    o.total_amount        AS 当前totalAmount,
+    o.paid_amount         AS 当前paidAmount,
+    o.pay_status,
+    ROUND(SUM(og.price * og.product_num), 2) AS 计算金额,
+    COUNT(og.id)          AS 商品条目数
+FROM t_order o
+INNER JOIN t_order_goods og ON og.order_id = o.id
+WHERE (o.total_amount IS NULL OR o.total_amount <= 0)
+  AND o.pay_status = 'UNPAID'
+  AND o.pay_channel = 'wechat_payscore'
+GROUP BY o.id, o.order_no, o.total_amount, o.paid_amount, o.pay_status
+ORDER BY o.create_time DESC;
+
+-- ============================================================
+-- 第二步：确认预览结果无误后，取消注释以下语句执行更新
+-- ============================================================
+
+-- UPDATE t_order o
+-- INNER JOIN (
+--     SELECT
+--         og.order_id,
+--         ROUND(SUM(og.price * og.product_num), 2) AS calc_amount
+--     FROM t_order_goods og
+--     INNER JOIN t_order ord ON ord.id = og.order_id
+--     WHERE (ord.total_amount IS NULL OR ord.total_amount <= 0)
+--       AND ord.pay_status = 'UNPAID'
+--       AND ord.pay_channel = 'wechat_payscore'
+--     GROUP BY og.order_id
+-- ) t ON o.id = t.order_id
+-- SET
+--     o.total_amount = t.calc_amount,
+--     o.paid_amount  = t.calc_amount,
+--     o.discount_amount = 0.00;
+
+-- 验证更新结果：
+-- SELECT id, order_no, total_amount, paid_amount, discount_amount, pay_status
+-- FROM t_order
+-- WHERE pay_channel = 'wechat_payscore' AND pay_status = 'UNPAID'
+-- ORDER BY create_time DESC;