Fix apv2, WIP

module/models/background.mjs

@@ -0,0 +1,20 @@
+import { listItemSchema } from "./_shared.mjs"
+
+/**
+ * DataModel pour les items de type "background" (historiques, origines).
+ * @augments {foundry.abstract.TypeDataModel}
+ */
+export default class VermineBackgroundData extends foundry.abstract.TypeDataModel {
+  /** @override */
+  static LOCALIZATION_PREFIXES = ["VERMINE.item.background"]
+
+  /** @override */
+  static defineSchema() {
+    const fields = foundry.data.fields
+    const reqInt = { required: true, nullable: false, integer: true }
+    return {
+      ...listItemSchema(),
+      cost: new fields.NumberField({ ...reqInt, initial: 1, min: 0 })
+    }
+  }
+}