feat(user): 新增收货地址管理及售后申请页面

- 新增地址类型定义，增强前端地址数据结构
- 新增地址编辑页面，支持地址智能识别和定位选点功能
- 地址编辑支持省市区选择及默认地址设置
- 新增地址列表页面，支持地址展示、删除、编辑和选择功能
- 实现售后申请页面，支持选择售后类型和退款原因
- 售后申请支持商品选择、退款金额计算和凭证上传
- 新增售后详情页面，支持售后状态展示及申请取消
- 优化页面加载和用户交互体验，增加错误提示和权限处理

src_bak/components/common/BottomButton/index.scss

@@ -0,0 +1,59 @@
+/* 底部悬浮按钮样式 */
+
+.bottom-button-container {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  z-index: 999;
+  background-color: #ffffff;
+  padding: 12PX 16PX;
+  padding-bottom: 24PX;
+  border-top: 1PX solid #f0f0f0;
+}
+
+.bottom-btn-subtitle {
+  text-align: center;
+  margin-bottom: 8px;
+}
+
+.subtitle-text {
+  font-size: 14px;
+  color: #666666;
+}
+
+.subtitle-price {
+  color: #ff6600;
+  font-weight: 500;
+}
+
+.bottom-btn {
+  width: 100%;
+  height: 88rpx;
+  background-color: #0e932e;
+  color: #ffffff;
+  font-size: 32rpx;
+  font-weight: 500;
+  border-radius: 44rpx;
+  border: none;
+  margin: 0;
+  padding: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  line-height: 88rpx;
+}
+
+.bottom-btn::after {
+  border: none;
+}
+
+.bottom-btn[disabled] {
+  background-color: #cccccc;
+  color: #ffffff;
+}
+
+.bottom-btn[loading] {
+  background-color: #0e932e;
+  opacity: 0.8;
+}

src_bak/components/common/BottomButton/index.tsx

@@ -0,0 +1,42 @@
+import React from 'react'
+import { View, Button, Text } from '@tarojs/components'
+import styles from './index.scss'
+
+interface BottomButtonProps {
+  text?: string
+  onClick?: () => void
+  disabled?: boolean
+  loading?: boolean
+  color?: string
+  subtitle?: string
+}
+
+const BottomButton: React.FC<BottomButtonProps> = ({
+  text = '确认',
+  onClick,
+  disabled = false,
+  loading = false,
+  color = '#0e932e',
+  subtitle
+}) => {
+  return (
+    <View className='px-4 fixed bottom-5 w-full bg-white'>
+      {subtitle && (
+        <View className='bottom-btn-subtitle'>
+          <Text className='text-sm text-gray-500'>{subtitle}</Text>
+        </View>
+      )}
+      <Button
+        className='bottom-btn text-white rounded-full'
+        disabled={disabled || loading}
+        loading={loading}
+        onClick={onClick}
+        style={{ backgroundColor: color, borderColor: color }}
+      >
+        {loading ? '加载中...' : text}
+      </Button>
+    </View>
+  )
+}
+
+export default BottomButton