feat: Health-Check-Ports und Service-URLs konsolidiert, Consul-Best-Practices umgesetzt

Signed-off-by: StefanMoCoAt <stefan.mo.co@gmail.com>

backend/services/masterdata/masterdata-service/src/main/resources/application.yml

@@ -22,10 +22,10 @@ spring:
         prefer-ip-address: true
         health-check-path: /actuator/health
         health-check-interval: 10s
-        health-check-port: ${server.port} # Tomcat Port für Health Checks
+        health-check-port: 8086 # Spring Boot Management Port (Actuator)
         instance-id: ${spring.application.name}:${server.port}:${random.uuid}
         service-name: ${spring.application.name}
-        port: ${masterdata.http.port} # Ktor API Port registrieren
+        port: ${masterdata.http.port:8091} # Ktor API Port registrieren (Gateway Ziel)
 
 server:
   port: 8086 # Spring Boot Management Port (Actuator & Tomcat)