feat(mp): 新增 AvatarCircle/ShortcutButton/TodoAlert 组件 + 商品详情页

- AvatarCircle: 头像圆形组件
- ShortcutButton: 快捷操作按钮
- TodoAlert: 待办提醒组件
- pkg-mall/product: 积分商品详情页

apps/miniprogram/src/components/ui/TodoAlert/index.tsx

@@ -0,0 +1,40 @@
+import React from 'react';
+import { View, Text } from '@tarojs/components';
+import './index.scss';
+
+type AlertColor = 'pri' | 'wrn';
+
+interface TodoAlertProps {
+  icon?: string;
+  title: string;
+  subtitle?: string;
+  color?: AlertColor;
+  onPress?: () => void;
+}
+
+const TodoAlert: React.FC<TodoAlertProps> = ({
+  icon,
+  title,
+  subtitle,
+  color = 'pri',
+  onPress,
+}) => {
+  const cls = ['todo-alert', `todo-alert--${color}`].join(' ');
+
+  return (
+    <View className={cls} onClick={onPress}>
+      {icon && (
+        <View className="todo-alert__icon-wrap">
+          <Text className="todo-alert__icon">{icon}</Text>
+        </View>
+      )}
+      <View className="todo-alert__body">
+        <Text className="todo-alert__title">{title}</Text>
+        {subtitle && <Text className="todo-alert__subtitle">{subtitle}</Text>}
+      </View>
+      <Text className="todo-alert__arrow">›</Text>
+    </View>
+  );
+};
+
+export default React.memo(TodoAlert);