feat(server): events system (#5145)

packages/backend/server/src/app.ts

@@ -3,6 +3,7 @@ import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { CacheModule } from './cache';
 import { ConfigModule } from './config';
+import { EventModule } from './event';
 import { BusinessModules } from './modules';
 import { AuthModule } from './modules/auth';
 import { PrismaModule } from './prisma';
@@ -14,6 +15,7 @@ const BasicModules = [
   PrismaModule,
   ConfigModule.forRoot(),
   CacheModule,
+  EventModule,
   StorageModule.forRoot(),
   SessionModule,
   RateLimiterModule,