增加自动获取节假日

src/main/kotlin/com/pomelotea/hoperun/sign/holiday/HolidayModels.kt

@@ -0,0 +1,17 @@
+package com.pomelotea.hoperun.sign.holiday
+
+import com.alibaba.fastjson.annotation.JSONField
+import java.time.Instant
+
+data class HolidayEntry(
+    val name: String? = null,
+    val date: String? = null,
+    @field:JSONField(name = "isOffDay")
+    val isOffDay: Boolean? = null
+)
+
+data class HolidayCalendar(
+    val holidays: Set<String>,
+    val workdays: Set<String>,
+    val updatedAt: Instant
+)