Create the Item data model

module/data/Item/generic.mjs

@@ -0,0 +1,25 @@
+export class GenericItemData extends foundry.abstract.TypeDataModel {
+	static defineSchema() {
+		const fields = foundry.data.fields;
+		return {
+			weight: new fields.NumberField({
+				min: 0,
+				initial: 0,
+				nullable: false,
+			}),
+			quantity: new fields.NumberField({
+				integer: true,
+				min: 0,
+				initial: 1,
+			}),
+			equipped: new fields.BooleanField({
+				initial: true,
+			}),
+			description: new fields.HTMLField({
+				blank: true,
+				trim: true,
+				initial: ``,
+			}),
+		};
+	};
+};