feat(shop): 优化VIP价格支持及线下付款兼容

- 结算页新增线下付款异常友好提示，避免支付配置中appid缺失错误
- 后端修复支付类型判断，防止线下付款仍试图创建微信支付订单
- 结算页默认支付方式调整为线下付款，货到付款选项注释
- 新增门店订单“修改金额”功能，支持弹窗输入新金额和修改原因
- 订单修改支持追加操作记录，接口复用updateShopOrder，无需新接口
- 重构多处页面和组件，使用响应式useVipStatus替代同步isVipMember缓存
- 新增OrderGoodsItem.price字段，下单时传VIP dealerPrice确保价格准确
- 购物车、商品详情、分类页、SkuSelector、商品卡片等支持动态VIP价格展示
- 修改购物车上下文calcPrice函数，响应VIP状态变更自动更新价格显示
- 提升前端VIP状态管理一致性，防止过期缓存导致VIP特权价格显示异常
- 验证构建通过，后端服务重启后生效线下付款修复和订单修改功能

src/pages/store/orders/index.tsx

@@ -1,5 +1,5 @@
 import React, {useState, useEffect, useCallback, useRef} from 'react'
-import {View, Text, Image, ScrollView} from '@tarojs/components'
+import {View, Text, Image, ScrollView, Input, Textarea} from '@tarojs/components'
 import Taro, {useDidShow} from '@tarojs/taro'
 import {pageShopOrder, updateShopOrder, removeShopOrder} from '@/api/shop/shopOrder'
 import type {ShopOrder, ShopOrderParam} from '@/api/shop/shopOrder/model'
@@ -24,16 +24,18 @@ const TABS: { key: TabKey; label: string; params: Partial<ShopOrderParam>[] }[]
 ]
 
 // ─── 操作类型 ─────────────────────────────────────────────────────
-type OpType = 'pay' | 'complete'
+type OpType = 'pay' | 'complete' | 'editPrice'
 
 const OP_LABEL: Record<OpType, string> = {
     pay: '已收款',
     complete: '已完成',
+    editPrice: '金额',
 }
 
 const OP_DESC: Record<OpType, string> = {
     pay: '变更支付状态为已付款',
     complete: '同时变更支付状态为已付款、收货状态为已收货、订单状态为已完成',
+    editPrice: '修改订单实付金额',
 }
 
 // ─── 图片上传 ─────────────────────────────────────────────────────
@@ -119,6 +121,8 @@ function isOrderActionable(order: ShopOrder): boolean {
 function getOrderActions(order: ShopOrder): { label: string; type: OpType }[] {
     if (!isOrderActionable(order)) return []
     const actions: { label: string; type: OpType }[] = []
+    // 修改金额（门店权限）
+    actions.push({label: '修改金额', type: 'editPrice'})
     // 货到付款：未付款 / 已付款 都直接"确认完成"，
     // 确认完成会同时设置 payStatus=true，无需单独的"确认收款"按钮
     if (order.orderStatus !== 1 && order.orderStatus !== 2) {
@@ -144,6 +148,11 @@ export default function StoreOrdersPage() {
     const [proofImages, setProofImages] = useState<string[]>([])
     const [submitting, setSubmitting] = useState(false)
 
+    // 修改金额弹窗状态
+    const [showEditPriceModal, setShowEditPriceModal] = useState(false)
+    const [editPayPrice, setEditPayPrice] = useState('')
+    const [editReason, setEditReason] = useState('')
+
     const pageSize = 10
     const loadingRef = useRef(false)
 
@@ -246,6 +255,57 @@ export default function StoreOrdersPage() {
         setProofImages([])
     }
 
+    /** 打开修改金额弹窗 */
+    const openEditPriceModal = (order: ShopOrder) => {
+        setCurrentOrder(order)
+        setEditPayPrice(String(order.payPrice || order.totalPrice || ''))
+        setEditReason('')
+        setShowEditPriceModal(true)
+    }
+
+    /** 关闭修改金额弹窗 */
+    const closeEditPriceModal = () => {
+        setShowEditPriceModal(false)
+        setCurrentOrder(null)
+        setEditPayPrice('')
+        setEditReason('')
+    }
+
+    /** 提交修改金额 */
+    const submitEditPrice = async () => {
+        if (!currentOrder) return
+
+        const newPrice = parseFloat(editPayPrice)
+        if (isNaN(newPrice) || newPrice < 0) {
+            Taro.showToast({title: '请输入有效的金额', icon: 'none'})
+            return
+        }
+        if (!editReason.trim()) {
+            Taro.showToast({title: '请输入修改原因', icon: 'none'})
+            return
+        }
+
+        setSubmitting(true)
+        try {
+            const oldPrice = currentOrder.payPrice || currentOrder.totalPrice || '0'
+            const changeRecord = `【门店修改金额】原实付¥${oldPrice} → 新实付¥${newPrice.toFixed(2)}，原因：${editReason.trim()}`
+
+            await updateShopOrder({
+                orderId: currentOrder.orderId,
+                payPrice: newPrice.toFixed(2),
+                comments: (currentOrder.comments || '') + `\n${changeRecord}`,
+            } as ShopOrder)
+
+            Taro.showToast({title: '修改成功', icon: 'success'})
+            closeEditPriceModal()
+            loadOrders(activeTab, 1)
+        } catch (e: any) {
+            Taro.showToast({title: e.message || '修改失败', icon: 'none'})
+        } finally {
+            setSubmitting(false)
+        }
+    }
+
     /** 选择并上传凭证图片 */
     const chooseProofImage = () => {
         const maxCount = 3
@@ -445,12 +505,14 @@ export default function StoreOrdersPage() {
                                 className={`px-4 py-2 rounded-lg ${
                                     act.type === 'complete'
                                         ? 'bg-green-500'
+                                        : act.type === 'editPrice'
+                                        ? 'bg-orange-500'
                                         : 'border border-blue-500'
                                 }`}
-                                onClick={() => openModal(order, act.type)}
+                                onClick={() => act.type === 'editPrice' ? openEditPriceModal(order) : openModal(order, act.type)}
                             >
                                 <Text className={`text-sm ${
-                                    act.type === 'complete' ? 'text-white' : 'text-blue-500'
+                                    act.type === 'complete' || act.type === 'editPrice' ? 'text-white' : 'text-blue-500'
                                 }`}>{act.label}</Text>
                             </View>
                         ))}
@@ -594,6 +656,70 @@ export default function StoreOrdersPage() {
                     </View>
                 </View>
             )}
+
+            {/* 修改金额弹窗 */}
+            {showEditPriceModal && currentOrder && (
+                <View className='fixed inset-0 z-50 flex items-end justify-center'>
+                    {/* 遮罩 */}
+                    <View className='absolute inset-0 bg-black/50' onClick={closeEditPriceModal}/>
+                    {/* 弹窗内容 */}
+                    <View className='relative bg-white rounded-t-2xl w-full px-5 pt-6 pb-10'>
+                        <Text className='text-lg font-medium text-gray-800 text-center mb-5 block'>
+                            修改订单金额
+                        </Text>
+
+                        {/* 订单信息 */}
+                        <View className='bg-gray-50 rounded-xl p-4 mb-5'>
+                            <Text className='text-sm text-gray-700 block'>订单号：{currentOrder.orderNo}</Text>
+                            <Text className='text-sm text-gray-700 mt-1 block'>
+                                当前实付：<Text className='text-red-500 font-medium'>¥{currentOrder.payPrice || currentOrder.totalPrice}</Text>
+                            </Text>
+                        </View>
+
+                        {/* 新金额输入 */}
+                        <View className='mb-5'>
+                            <Text className='text-sm text-gray-600 mb-2 block'>新实付金额（元）</Text>
+                            <Input
+                                type='digit'
+                                className='w-full px-4 py-3 rounded-xl border border-gray-200 text-lg text-gray-800'
+                                value={editPayPrice}
+                                onInput={(e) => setEditPayPrice(e.detail.value)}
+                                placeholder='请输入新的实付金额'
+                            />
+                        </View>
+
+                        {/* 修改原因 */}
+                        <View className='mb-6'>
+                            <Text className='text-sm text-gray-600 mb-2 block'>修改原因（必填）</Text>
+                            <Textarea
+                                className='w-full px-4 py-3 rounded-xl border border-gray-200 text-sm text-gray-800'
+                                style={{minHeight: '60px'}}
+                                value={editReason}
+                                onInput={(e) => setEditReason(e.detail.value)}
+                                placeholder='请输入修改原因，如：商品缺货调整、协商降价等'
+                                maxlength={100}
+                            />
+                        </View>
+
+                        {/* 操作按钮 */}
+                        <View className='flex gap-3'>
+                            <View className='flex-1 py-3 rounded-xl bg-gray-100 text-center' onClick={closeEditPriceModal}>
+                                <Text className='text-sm text-gray-600'>取消</Text>
+                            </View>
+                            <View
+                                className='flex-1 py-3 rounded-xl bg-orange-500 text-center flex items-center justify-center'
+                                onClick={submitting ? undefined : submitEditPrice}
+                            >
+                                {submitting ? (
+                                    <Text className='text-sm text-white'>提交中...</Text>
+                                ) : (
+                                    <Text className='text-sm text-white'>确认修改</Text>
+                                )}
+                            </View>
+                        </View>
+                    </View>
+                </View>
+            )}
         </View>
     )
 }