0.7.4

首先我加了CI课程表json的读取，然后把天气时钟这个老问题也修了。

LanMountainDesktop/Models/AppSettingsSnapshot.cs

@@ -33,6 +33,8 @@ public sealed class AppSettingsSnapshot
 
     public string WallpaperPlacement { get; set; } = "Fill";
 
+    public int SystemWallpaperRefreshIntervalSeconds { get; set; } = 300;
+
     public int SettingsTabIndex { get; set; } = 0;
 
     public string? SettingsTabTag { get; set; }

LanMountainDesktop/Models/ComponentSettingsSnapshot.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 
 namespace LanMountainDesktop.Models;
@@ -12,6 +13,10 @@ public sealed class ComponentSettingsSnapshot
 
     public string ActiveImportedClassScheduleId { get; set; } = string.Empty;
 
+    public DateOnly? SemesterStartDate { get; set; }
+
+    public int SemesterWeekCycle { get; set; } = 1;
+
     public bool StudyEnvironmentShowDisplayDb { get; set; } = true;
 
     public bool StudyEnvironmentShowDbfs { get; set; }