update TWA Management v0.0.1

TWASys-App/DBModels/Folder.cs

@@ -0,0 +1,27 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace TWASys_App.DBModels
+{
+    public class Folder
+    {
+
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+
+        public ulong IdFolders { get; set; }                 // BIGINT PK
+        public ulong? IdParent { get; set; }                 // BIGINT FK, null = root
+
+        public string Name { get; set; } = "";                // VARCHAR(45)
+        public string Code { get; set; } = "";             // VARCHAR(100)
+        public string Path { get; set; } = "";              // TEXT
+        public string Options { get; set; } = "";                // LONGTEXT
+
+        public DateTime CreateDate { get; set; } = DateTime.UtcNow;           // DATETIME
+        public DateTime? LastModified { get; set; } = null;         // DATETIME NULL
+        public int Status { get; set; }                     // INT(11)
+
+        public Folder? Parent { get; set; } = null;
+        public ICollection<Folder> Children { get; set; } = new List<Folder>();
+    }
+}