Adds Database Structure in C# with Entity Framework

WatchLog/Data/Database/Private/UserWatchStatus.cs

@@ -0,0 +1,38 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace WatchLog.Data
+{
+    public class UserWatchStatus
+    {
+        [Key]
+        public int Id { get; set; }
+
+        [Required]
+        [MaxLength(50)]
+        public required string Name { get; set; }
+
+        [MaxLength(255)]
+        public string? Description { get; set; }
+
+        [MaxLength(7)]
+        public string? ColorCode { get; set; }
+
+        [Required]
+        public required DateTime CreationTime { get; set; }
+
+        public DateTime? LastChange { get; set; }
+
+
+        // --- Foreign Key ---
+        [Required]
+        public int UserId { get; set; }
+
+
+        // --- Navigation Properties ---
+        [ForeignKey(nameof(UserId))]
+        public virtual User User { get; set; } = null!;
+
+        public virtual ICollection<PrivateEntity> PrivateEntities { get; set; } = new List<PrivateEntity>();
+    }
+}