ci: bump version to v4.21.0

CHANGELOG.md

@@ -287,3 +287,8 @@
 ### Features
 
 * Add caching headers for env.js in Nginx configuration ([dbad818](https://git.janis-eccarius.de/KnockOutWhist/KnockOutWhist-Web/commit/dbad818fdaeb237a05f583e5402773a4339e7aa1))
+##  (2026-01-07)
+
+### Features
+
+* Add logging to Gateway for pod synchronization and startup events ([6ef7401](https://git.janis-eccarius.de/KnockOutWhist/KnockOutWhist-Web/commit/6ef74014430673e725245bf37e44c5b90b81abb3))

knockoutwhistweb/app/logic/Gateway.scala

@@ -4,6 +4,7 @@ import de.knockoutwhist.data.Pod
 import de.knockoutwhist.data.redis.RedisManager
 import org.apache.pekko.actor.ActorSystem
 import org.redisson.config.Config
+import play.api.Logger
 import play.api.inject.ApplicationLifecycle
 
 import java.util.UUID
@@ -17,6 +18,8 @@ class Gateway @Inject()(
                          actorSystem: ActorSystem
                        )(implicit ec: ExecutionContext)  {
 
+  private val logger = Logger(getClass.getName)
+  
   val redis: RedisManager = {
     val config: Config = Config()
     config.useSingleServer.setAddress("valkey://" + sys.env.getOrElse("VALKEY_HOST", "localhost") + ":" + sys.env.getOrElse("VALKEY_PORT", "6379"))
@@ -24,9 +27,12 @@ class Gateway @Inject()(
   }
 
   redis.continuousSyncPod(() => {
+    logger.info("Syncing pod with Redis")
     createPod()
   })
   
+  logger.info("Gateway started")
+
   def syncPod(): Unit = {
     redis.syncPod(createPod())
   }

knockoutwhistweb/app/modules/GatewayModule.scala

@@ -1,9 +1,10 @@
 package modules
 
 import com.google.inject.AbstractModule
+import logic.Gateway
 
 class GatewayModule extends AbstractModule {
   override def configure(): Unit = {
-    bind(classOf[GatewayModule]).asEagerSingleton()
+    bind(classOf[Gateway]).asEagerSingleton()
   }
 }

versions.env

@@ -1,3 +1,3 @@
 MAJOR=4
-MINOR=20
+MINOR=21
 PATCH=0