add: 火车票和航班处理

cloudroam

2025-04-16 ca8bc638ba9cbca3f5f6a4d497d45f92e70064f3

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package com.example.firstapp.model
 
data class HeatmapStat(
    val dayOfWeek: Int,  // 0-6 (周日-周六)
    val weekOfYear: Int, // 0-51
    val count: Int
)