added xml comments for existing api parts and pieces.

server/Models/Season.cs

@@ -5,20 +5,35 @@ namespace server.Models
 {
     public class Season
     {
+        /// <summary>
+        /// Identifier for the season.
+        /// </summary>
         [BsonId]
         [BsonRepresentation(BsonType.ObjectId)]
         public string? Id { get; set; }
 
+        /// <summary>
+        /// The season number.
+        /// </summary>
         [BsonElement("seasonNumber")]
         public int? SeasonNumber { get; set; }
 
+        /// <summary>
+        /// The number of episodes in the season.
+        /// </summary>
         [BsonElement("numberOfEpisodes")]
         public int? NumberOfEpisodes { get; set; }
 
+        /// <summary>
+        /// The date the season first aired.
+        /// </summary>
         [BsonElement("dateFirstAired")]
         [BsonDateTimeOptions(DateOnly = true)]
         public DateTime? DateFirstAired { get; set; }
 
+        /// <summary>
+        /// The date the season last aired.
+        /// </summary>
         [BsonElement("dateLastAired")]
         [BsonDateTimeOptions(DateOnly = true)]
         public DateTime? DateLastAired { get; set; }