Adds Database Structure in C# with Entity Framework

WatchLog/Data/Database/Shared/SharedList.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.ComponentModel.DataAnnotations;
+
+namespace WatchLog.Data
+{
+    public class SharedList
+    {
+        [Key]
+        public int Id { get; set; }
+
+        [Required]
+        [MaxLength(150)]
+        public required string Name { get; set; }
+
+        [Required]
+        public required DateTime CreationTime { get; set; }
+
+        public DateTime? LastChange { get; set; }
+
+
+        // --- Navigation Properties ---
+        public virtual ICollection<LinkTableSharedUser> SharedListUsers { get; set; } = new List<LinkTableSharedUser>();
+
+        public virtual ICollection<SharedListEntity> SharedListEntities { get; set; } = new List<SharedListEntity>();
+
+        public virtual ICollection<SharedWatchStatus> SharedWatchStatuses { get; set; } = new List<SharedWatchStatus>();
+
+        public virtual ICollection<SharedListLabel> SharedListLabels { get; set; } = new List<SharedListLabel>();
+    }
+}