feat(ADM-018): completed feature

project/src/modules/orders/domain/errors.ts

@@ -0,0 +1,16 @@
+export class OrderStateTransitionError extends Error {
+  constructor(
+    public readonly from: string,
+    public readonly to: string,
+  ) {
+    super(`Order state transition from ${from} to ${to} is not allowed`);
+    this.name = 'OrderStateTransitionError';
+  }
+}
+
+export class OrderNotFoundError extends Error {
+  constructor() {
+    super('Order not found');
+    this.name = 'OrderNotFoundError';
+  }
+}