feat(admin): 添加管理后台logo文件- 新增128x128尺寸的SVG格式logo文件

- 使用Method Draw工具创建矢量图形
- 包含背景层和图层1的基础结构
- 支持透明背景显示
- 为管理后台界面提供品牌标识- 便于后续UI组件中引用和展示

dict/taro/src/hooks/usePaymentCountdown.ts

@@ -0,0 +1,163 @@
+import { useState, useEffect, useMemo } from 'react';
+import dayjs from 'dayjs';
+import duration from 'dayjs/plugin/duration';
+
+// 扩展dayjs支持duration
+dayjs.extend(duration);
+
+export interface CountdownTime {
+  hours: number;
+  minutes: number;
+  seconds: number;
+  isExpired: boolean;
+  totalMinutes: number; // 总剩余分钟数
+}
+
+/**
+ * 支付倒计时Hook
+ * @param createTime 订单创建时间
+ * @param payStatus 支付状态
+ * @param realTime 是否实时更新（详情页用true，列表页用false）
+ * @param timeoutHours 超时小时数，默认24小时
+ */
+export const usePaymentCountdown = (
+  createTime?: string,
+  payStatus?: boolean,
+  realTime: boolean = false,
+  timeoutHours: number = 24
+): CountdownTime => {
+  const [timeLeft, setTimeLeft] = useState<CountdownTime>({
+    hours: 0,
+    minutes: 0,
+    seconds: 0,
+    isExpired: false,
+    totalMinutes: 0
+  });
+
+  // 计算剩余时间的函数
+  const calculateTimeLeft = useMemo(() => {
+    return (): CountdownTime => {
+      if (!createTime || payStatus) {
+        return {
+          hours: 0,
+          minutes: 0,
+          seconds: 0,
+          isExpired: false,
+          totalMinutes: 0
+        };
+      }
+
+      const createTimeObj = dayjs(createTime);
+      const expireTime = createTimeObj.add(timeoutHours, 'hour');
+      const now = dayjs();
+      const diff = expireTime.diff(now);
+
+      if (diff <= 0) {
+        return {
+          hours: 0,
+          minutes: 0,
+          seconds: 0,
+          isExpired: true,
+          totalMinutes: 0
+        };
+      }
+
+      const durationObj = dayjs.duration(diff);
+      const hours = Math.floor(durationObj.asHours());
+      const minutes = durationObj.minutes();
+      const seconds = durationObj.seconds();
+      const totalMinutes = Math.floor(durationObj.asMinutes());
+
+      return {
+        hours,
+        minutes,
+        seconds,
+        isExpired: false,
+        totalMinutes
+      };
+    };
+  }, [createTime, payStatus, timeoutHours]);
+
+  useEffect(() => {
+    if (!createTime || payStatus) {
+      setTimeLeft({
+        hours: 0,
+        minutes: 0,
+        seconds: 0,
+        isExpired: false,
+        totalMinutes: 0
+      });
+      return;
+    }
+
+    // 立即计算一次
+    const initialTime = calculateTimeLeft();
+    setTimeLeft(initialTime);
+
+    // 如果不需要实时更新，直接返回
+    if (!realTime) {
+      return;
+    }
+
+    // 如果需要实时更新，设置定时器
+    const timer = setInterval(() => {
+      const newTimeLeft = calculateTimeLeft();
+      setTimeLeft(newTimeLeft);
+      
+      // 如果已过期，清除定时器
+      if (newTimeLeft.isExpired) {
+        clearInterval(timer);
+      }
+    }, 1000);
+
+    return () => clearInterval(timer);
+  }, [createTime, payStatus, realTime, calculateTimeLeft]);
+
+  return timeLeft;
+};
+
+/**
+ * 格式化倒计时文本
+ * @param timeLeft 倒计时时间对象
+ * @param showSeconds 是否显示秒数
+ */
+export const formatCountdownText = (
+  timeLeft: CountdownTime,
+  showSeconds: boolean = false
+): string => {
+  if (timeLeft.isExpired) {
+    return '已过期';
+  }
+
+  if (timeLeft.hours > 0) {
+    if (showSeconds) {
+      return `${timeLeft.hours}小时${timeLeft.minutes}分${timeLeft.seconds}秒`;
+    } else {
+      return `${timeLeft.hours}小时${timeLeft.minutes}分钟`;
+    }
+  } else if (timeLeft.minutes > 0) {
+    if (showSeconds) {
+      return `${timeLeft.minutes}分${timeLeft.seconds}秒`;
+    } else {
+      return `${timeLeft.minutes}分钟`;
+    }
+  } else {
+    return `${timeLeft.seconds}秒`;
+  }
+};
+
+/**
+ * 判断是否为紧急状态（剩余时间少于1小时）
+ */
+export const isUrgentCountdown = (timeLeft: CountdownTime): boolean => {
+  return !timeLeft.isExpired && timeLeft.totalMinutes < 60;
+};
+
+/**
+ * 判断是否为非常紧急状态（剩余时间少于10分钟）
+ */
+export const isCriticalCountdown = (timeLeft: CountdownTime): boolean => {
+  return !timeLeft.isExpired && timeLeft.totalMinutes < 10;
+};
+
+export default usePaymentCountdown;