Очень много разных изменений

Pf2eDataScrapper/SchemaBuilder/TypeResolver.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json.Linq;
+
+namespace Pf2eDataScrapper.SchemaBuilder
+{
+    internal class TypeResolver
+    {
+        public JTokenType TokenType(JToken? value)
+        {
+            if (value is null || value.Type is JTokenType.Null or JTokenType.Undefined or JTokenType.None)
+            {
+                return JTokenType.Null;
+            }
+
+            return value.Type;
+        }
+
+        public virtual AbstractSchemaType Resolve(SchemaNode parent, JToken? value)
+        {
+            var type = TokenType(value);
+
+            if (type == JTokenType.Null)
+            {
+                throw new Exception("Value is null, cannot determine type");
+            }
+
+            return type switch
+            {
+                JTokenType.Array => new ArraySchemaType(parent),
+                JTokenType.Object => new ObjectSchemaType(parent),
+                _ => new StaticSchemaType(parent, type)
+            };
+        }
+
+    }
+}