完善下单逻辑及其ui展示，修复支付倒计时显示错误bug

mall_sql/migrations/20260525_order_timeout_status.sql

@@ -0,0 +1,77 @@
+BEGIN;
+
+ALTER TABLE public.ml_orders
+    ADD COLUMN IF NOT EXISTS pay_expire_at TIMESTAMPTZ;
+
+ALTER TABLE public.ml_orders
+    DROP CONSTRAINT IF EXISTS chk_ml_order_status;
+
+ALTER TABLE public.ml_orders
+    DROP CONSTRAINT IF EXISTS chk_ml_payment_status;
+
+ALTER TABLE public.ml_orders
+    ADD CONSTRAINT chk_ml_order_status CHECK (order_status IN (1,2,3,4,5,6,7,8));
+
+ALTER TABLE public.ml_orders
+    ADD CONSTRAINT chk_ml_payment_status CHECK (payment_status IN (1,2,3,4,5));
+
+COMMENT ON COLUMN public.ml_orders.pay_expire_at IS '支付截止时间，超过后订单进入已超时';
+
+UPDATE public.ml_orders
+SET pay_expire_at = created_at + INTERVAL '10 minutes'
+WHERE pay_expire_at IS NULL
+  AND order_status = 1
+  AND payment_status = 1;
+
+UPDATE public.ml_orders
+SET order_status = 8,
+    payment_status = 5,
+    cancel_reason = CASE
+        WHEN cancel_reason IS NULL OR cancel_reason = '' THEN '支付超时自动关闭'
+        ELSE cancel_reason
+    END,
+    updated_at = NOW()
+WHERE order_status = 1
+  AND payment_status = 1
+  AND pay_expire_at IS NOT NULL
+  AND pay_expire_at <= NOW();
+
+CREATE INDEX IF NOT EXISTS idx_ml_orders_pay_expire_at
+ON public.ml_orders(pay_expire_at);
+
+DROP VIEW IF EXISTS public.ml_orders_detail_view;
+
+CREATE VIEW public.ml_orders_detail_view AS
+SELECT 
+    o.*,
+    u.username as customer_name,
+    u.phone as customer_phone,
+    m.username as merchant_name,
+    s.shop_name,
+    CASE 
+        WHEN o.order_status = 1 THEN '待付款'
+        WHEN o.order_status = 2 THEN '待发货'
+        WHEN o.order_status = 3 THEN '待收货'
+        WHEN o.order_status = 4 THEN '已完成'
+        WHEN o.order_status = 5 THEN '已取消'
+        WHEN o.order_status = 6 THEN '退款中'
+        WHEN o.order_status = 7 THEN '已退款'
+        WHEN o.order_status = 8 THEN '已超时'
+        ELSE '未知'
+    END as order_status_name,
+    CASE 
+        WHEN o.payment_status = 1 THEN '未付款'
+        WHEN o.payment_status = 2 THEN '已付款'
+        WHEN o.payment_status = 3 THEN '部分退款'
+        WHEN o.payment_status = 4 THEN '全额退款'
+        WHEN o.payment_status = 5 THEN '已关闭'
+        ELSE '未知'
+    END as payment_status_name
+FROM public.ml_orders o
+LEFT JOIN public.ak_users u ON o.user_id = u.id
+LEFT JOIN public.ak_users m ON o.merchant_id = m.id
+LEFT JOIN public.ml_shops s ON o.merchant_id = s.merchant_id;
+
+COMMENT ON VIEW public.ml_orders_detail_view IS '订单详情视图';
+
+COMMIT;