feat(gatekeeper): add PR merge automation service

apps/api/src/queue-notifications/queue-notifications.module.ts

@@ -2,12 +2,13 @@ import { Module } from "@nestjs/common";
 import { ConfigModule } from "@nestjs/config";
 import { AuthModule } from "../auth/auth.module";
 import { ApiKeyGuard } from "../common/guards/api-key.guard";
+import { GatekeeperModule } from "../gatekeeper/gatekeeper.module";
 import { QueueNotificationsController } from "./queue-notifications.controller";
 import { QueueNotificationsService } from "./queue-notifications.service";
 import { WoodpeckerWebhookController } from "./woodpecker-webhook.controller";
 
 @Module({
-  imports: [ConfigModule, AuthModule],
+  imports: [ConfigModule, AuthModule, GatekeeperModule],
   controllers: [QueueNotificationsController, WoodpeckerWebhookController],
   providers: [QueueNotificationsService, ApiKeyGuard],
   exports: [QueueNotificationsService],