优化排课

src/Jiaowu.Api/Domain/Academic/TeachingTaskEntities.cs

@@ -15,12 +15,30 @@ public sealed class TeachingTask : EntityBase
     public int EndWeek { get; set; } = 16;
     public int WeeklyHours { get; set; } = 2;
     public TeachingTaskStatus Status { get; set; } = TeachingTaskStatus.Draft;
+    public string? GenerationBatchCode { get; set; }
     public string? Notes { get; set; }
     public DateTime? PublishedAt { get; set; }
     public ICollection<TeachingTaskTeacher> Teachers { get; set; } = [];
     public ICollection<TeachingTaskClass> Classes { get; set; } = [];
 }
 
+public sealed class TeacherCourseApplication : EntityBase
+{
+    public Guid AcademicTermId { get; set; }
+    public AcademicTerm? AcademicTerm { get; set; }
+    public Guid TeacherId { get; set; }
+    public Teacher? Teacher { get; set; }
+    public Guid CourseId { get; set; }
+    public Course? Course { get; set; }
+    public TeacherCourseApplicationStatus Status { get; set; } =
+        TeacherCourseApplicationStatus.Pending;
+    public string? Statement { get; set; }
+    public string? ReviewComment { get; set; }
+    public DateTime SubmittedAt { get; set; } = DateTime.UtcNow;
+    public DateTime? ReviewedAt { get; set; }
+    public Guid? ReviewedByUserId { get; set; }
+}
+
 public sealed class TeachingTaskTeacher
 {
     public Guid TeachingTaskId { get; set; }
@@ -44,3 +62,11 @@ public enum TeachingTaskStatus
     Published = 2,
     Closed = 3
 }
+
+public enum TeacherCourseApplicationStatus
+{
+    Pending = 1,
+    Approved = 2,
+    Rejected = 3,
+    Withdrawn = 4
+}