Introduce Ktor-based HTTP server for Masterdata context, implement upsert logic for Altersklasse, Bundesland, and Land repositories, enhance IdempotencyPlugin, and add integration tests.

backend/services/masterdata/masterdata-service/src/main/kotlin/at/mocode/masterdata/service/config/KtorServerConfiguration.kt

@@ -0,0 +1,50 @@
+package at.mocode.masterdata.service.config
+
+import at.mocode.masterdata.api.masterdataApiModule
+import at.mocode.masterdata.api.rest.AltersklasseController
+import at.mocode.masterdata.api.rest.BundeslandController
+import at.mocode.masterdata.api.rest.CountryController
+import at.mocode.masterdata.api.rest.PlatzController
+import io.ktor.server.engine.embeddedServer
+import io.ktor.server.engine.EmbeddedServer
+import io.ktor.server.netty.Netty
+import io.ktor.server.netty.NettyApplicationEngine
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.DisposableBean
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+/**
+ * Ktor-Server Bootstrap für den Masterdata-Bounded-Context (SCS-Architektur).
+ *
+ * - Startet einen eigenen Ktor Netty Server für diesen Kontext.
+ * - Hängt das masterdataApiModule mit den via Spring bereitgestellten Controllern ein.
+ * - Port ist konfigurierbar über SPRING-Config/ENV (Default 8091). Für Tests kann Port 0 genutzt werden.
+ */
+@Configuration
+class KtorServerConfiguration {
+
+  private val log = LoggerFactory.getLogger(KtorServerConfiguration::class.java)
+
+  @Bean(destroyMethod = "stop")
+  fun ktorServer(
+    @Value("\${masterdata.http.port:8091}") port: Int,
+    countryController: CountryController,
+    bundeslandController: BundeslandController,
+    altersklasseController: AltersklasseController,
+    platzController: PlatzController
+  ): EmbeddedServer<NettyApplicationEngine, NettyApplicationEngine.Configuration> {
+    log.info("Starting Masterdata Ktor server on port {}", port)
+    val engine = embeddedServer(Netty, port = port) {
+      masterdataApiModule(
+        countryController = countryController,
+        bundeslandController = bundeslandController,
+        altersklasseController = altersklasseController,
+        platzController = platzController
+      )
+    }
+    engine.start(wait = false)
+    return engine
+  }
+}