feat(reflection): add GameWritebackEventDto to native reflection configuration

fix(ws): improve WebSocket connection cleanup on close
chore(stream): simplify group name generation in GameCreationStreamClient

modules/core/build.gradle.kts

@@ -144,6 +144,23 @@ tasks.withType(org.gradle.api.tasks.scala.ScalaCompile::class).configureEach {
     }
 }
 
+// GraalVM CE javac fails type inference for asyncUnaryCall when request/response types are
+// both different and when the response type appears as a request type elsewhere in the service.
+// Patching the generated stub to add explicit type witnesses is the minimal targeted fix.
+tasks.named("quarkusGenerateCode") {
+    doLast {
+        val grpcDir = file("build/classes/java/quarkus-generated-sources/grpc/de/nowchess/core/proto")
+        grpcDir.walkTopDown().filter { it.name.endsWith("Grpc.java") }.forEach { f ->
+            val original = f.readText()
+            val patched = original.replace(
+                "io.grpc.stub.ClientCalls.asyncUnaryCall(getChannel().newCall(getApplyMoveMethod(), getCallOptions()), request, responseObserver);",
+                "io.grpc.stub.ClientCalls.<de.nowchess.core.proto.ProtoMoveRequest, de.nowchess.core.proto.ProtoGameContext>asyncUnaryCall(getChannel().newCall(getApplyMoveMethod(), getCallOptions()), request, responseObserver);"
+            )
+            if (patched != original) f.writeText(patched)
+        }
+    }
+}
+
 tasks.named("compileScoverageJava").configure {
     dependsOn(tasks.named("quarkusGenerateCode"))
 }

modules/tournament/src/main/scala/de/nowchess/tournament/config/NativeReflectionConfig.scala

@@ -1,5 +1,6 @@
 package de.nowchess.tournament.config
 
+import de.nowchess.api.dto.GameWritebackEventDto
 import de.nowchess.tournament.client.{CoreCreateGameRequest, CoreGameResponse, CorePlayerInfo, CoreTimeControl}
 import de.nowchess.tournament.domain.{Tournament, TournamentPairing, TournamentParticipant}
 import de.nowchess.tournament.dto.*
@@ -29,6 +30,7 @@ import io.quarkus.runtime.annotations.RegisterForReflection
     classOf[CoreTimeControl],
     classOf[CoreCreateGameRequest],
     classOf[CoreGameResponse],
+    classOf[GameWritebackEventDto],
   ),
 )
 class NativeReflectionConfig