feat: refactor Health-Check-Probes und Connectivity-Logik, stabilisiere Docker-Services

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

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

@@ -35,6 +35,8 @@ management:
   endpoint:
     health:
       show-details: always
+      probes:
+        enabled: true
   prometheus:
     metrics:
       export:

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

@@ -44,6 +44,8 @@ management:
   endpoint:
     health:
       show-details: always
+      probes:
+        enabled: true
   prometheus:
     metrics:
       export: