feat(M02-B): 实现微信登录与可撤销会话

backend/src/app.ts

@@ -8,10 +8,12 @@ import {
   registerPlatformBootstrapRoutes,
   type PlatformConfigResolver
 } from './routes/platform-bootstrap.js';
+import { registerAuthRoutes, type AuthRouteOptions } from './routes/auth.js';
 
 export interface BuildAppOptions {
   config?: AppConfig;
   platformConfigRepository?: PlatformConfigResolver;
+  auth?: AuthRouteOptions;
 }
 
 declare module 'fastify' {
@@ -57,6 +59,9 @@ export async function buildApp(options: BuildAppOptions = {}): Promise<FastifyIn
   if (options.platformConfigRepository) {
     await registerPlatformBootstrapRoutes(app, options.platformConfigRepository);
   }
+  if (options.auth) {
+    await registerAuthRoutes(app, options.auth);
+  }
 
   return app;
 }