feat: bootstrap NestJS backend with auth, stations, users, health-check, now-playing

src/now-playing/now-playing.module.ts

@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+import { NowPlayingGateway } from './now-playing.gateway';
+import { NowPlayingService } from './now-playing.service';
+
+@Module({
+  providers: [NowPlayingGateway, NowPlayingService],
+  exports: [NowPlayingService],
+})
+export class NowPlayingModule {}