Add delivery and supplier HTTP APIs with expanded response docs.

Wire store-backed CRUD for goods receipts and suppliers, and teach the API doc generator to expand $ref/allOf/array samples so route markdown shows full JSON shapes.

src/db/store.js

@@ -19,6 +19,8 @@ const STORE_NAMESPACES = [
     'tax',
     'google_auth',
     'posterminal',
+    'supplier',
+    'delivery',
 ];
 
 /**