feat: 更新 @kevisual/router 版本至 0.0.89；添加 download 命令模块以支持文件下载

assistant/src/main.ts

@@ -5,5 +5,6 @@ import './routes/index.ts';
 import './routes-simple/index.ts';
 
 export const AgentPlugin: Plugin = createRouterAgentPluginFn({
-  router: app,
-})
+  router: app as any,
+})
+export { app }

assistant/src/router.ts

@@ -0,0 +1,3 @@
+import { parse } from '@kevisual/router/commander';
+import { app, program } from './server.ts';
+parse({ app: app as any, program: program as any })

assistant/src/server.ts

@@ -164,3 +164,5 @@ export const runParser = async (argv: string[]) => {
     console.error('执行错误:', error.message);
   }
 };
+
+export { app, program };