Refactor TeamScheduler, easier to read and maintain

Core/Calculation/TeamScheduleTimeSlot.cs

@@ -2,15 +2,38 @@
 
 namespace Core.Calculation;
 
+/// <summary>
+/// Represents a single time slot in the team meeting schedule.
+/// </summary>
 public class TeamScheduleTimeSlot
 {
+    /// <summary>
+    /// Gets or sets the name of this time slot.
+    /// </summary>
     public string Name { get; set; }
-    public Team[] Teams;
-    public Student[] UnscheduledStudents;
-    public IEnumerable<Tuple<Student, IEnumerable<Team>>> StudentOverlaps;
 
+    /// <summary>
+    /// Gets or sets the teams scheduled in this time slot.
+    /// </summary>
+    public Team[] Teams;
+
+    /// <summary>
+    /// Gets or sets the students who are not scheduled in any team during this time slot.
+    /// </summary>
+    public Student[] UnscheduledStudents;
+
+    /// <summary>
+    /// Gets or sets the students who have overlapping team meetings in this time slot.
+    /// </summary>
+    public IEnumerable<(Student student, IEnumerable<Team> teams)> StudentOverlaps;
+
+    /// <summary>
+    /// Checks if a student has overlapping team meetings in this time slot.
+    /// </summary>
+    /// <param name="student">The student to check</param>
+    /// <returns>True if the student has overlaps, otherwise false</returns>
     public bool StudentHasOverlaps(Student student)
     {
-        return StudentOverlaps.FirstOrDefault(o => o.Item1.Equals(student)) != null;
+        return StudentOverlaps.Any(o => o.student.Equals(student));
     }
 }