Starting on the Data portion

SessionZero/Data/Sztl/SztlField.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace SessionZero.Data.Sztl;
+
+public class SztlField
+{
+    public required string Id { get; set; }
+    public required SztlFieldType FieldType { get; set; }
+}
+
+public enum SztlFieldType
+{
+    Number, Text, Textbox, Bool, Object, Formula
+}