Restructure project to root layout

src/models/PickItem.ts

@@ -0,0 +1,12 @@
+export type PickItemStatus = 'pending' | 'picked' | 'skipped';
+
+export interface PickItem {
+  id: string;
+  pick_list_id: string;
+  product_id: string;
+  quantity_units: number;
+  quantity_bulk: number;
+  status: PickItemStatus;
+  created_at: number;
+  updated_at: number;
+}