fix(server): server info api should be public (#6098)

packages/backend/server/src/app.controller.ts

@@ -1,11 +1,13 @@
 import { Controller, Get } from '@nestjs/common';
 
+import { Public } from './core/auth';
 import { Config } from './fundamentals/config';
 
 @Controller('/')
 export class AppController {
   constructor(private readonly config: Config) {}
 
+  @Public()
   @Get()
   info() {
     return {