feat(M04-D): 完成最小权限订单分享

backend/src/app.ts

@@ -36,6 +36,7 @@ import {
 import {
   registerOrderManagementRoutes, type OrderManagementRouteOptions
 } from './routes/order-management.js';
+import { registerOrderShareRoutes, type OrderShareRouteOptions } from './routes/order-share.js';
 
 export interface BuildAppOptions {
   config?: AppConfig;
@@ -49,6 +50,7 @@ export interface BuildAppOptions {
   pricing?: PricingRouteOptions;
   orderState?: OrderStateRouteOptions;
   orderManagement?: OrderManagementRouteOptions;
+  orderShare?: OrderShareRouteOptions;
 }
 
 declare module 'fastify' {
@@ -121,6 +123,9 @@ export async function buildApp(options: BuildAppOptions = {}): Promise<FastifyIn
   if (options.orderManagement) {
     await registerOrderManagementRoutes(app, options.orderManagement);
   }
+  if (options.orderShare) {
+    await registerOrderShareRoutes(app, options.orderShare);
+  }
 
   return app;
 }