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:

dc-backend.yaml

@@ -81,7 +81,7 @@ services:
     #        condition: "service_healthy"
 
     healthcheck:
-      test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8081/actuator/health/readiness" ]
+      test: [ "CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8081/actuator/health/readiness" ]
       interval: 15s
       timeout: 5s
       retries: 5
@@ -156,7 +156,7 @@ services:
         condition: "service_healthy"
 
     healthcheck:
-      test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8082/actuator/health/readiness" ]
+      test: [ "CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8082/actuator/health/readiness" ]
       interval: 15s
       timeout: 5s
       retries: 5
@@ -231,7 +231,7 @@ services:
         condition: "service_healthy"
 
     healthcheck:
-      test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8086/actuator/health/readiness" ]
+      test: [ "CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8086/actuator/health/readiness" ]
       interval: 15s
       timeout: 5s
       retries: 5
@@ -306,7 +306,7 @@ services:
         condition: "service_healthy"
 
     healthcheck:
-      test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8085/actuator/health/readiness" ]
+      test: [ "CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8085/actuator/health/readiness" ]
       interval: 15s
       timeout: 5s
       retries: 5

docs/99_Journal/2026-04-16_Health-Connectivity-Fix.md

@@ -0,0 +1,35 @@
+# 📓 Journal-Eintrag: 2026-04-16 - Health-Fixes & Connectivity Refactoring
+
+## 🏗️ Status Quo
+
+Nach der Integration des ZNS-First Wizards gab es Stabilitätsprobleme in der Docker-Umgebung (Unhealthy Services) und
+eine fachliche Fehlinterpretation des `ping-service`.
+
+## 🚀 Wichtigste Korrekturen
+
+### 1. Actuator & Docker Stability
+
+- **Problem**: `masterdata-service` und `events-service` meldeten unter Docker 404 auf den Readiness-Probes.
+- **Lösung**: Explizite Aktivierung der Spring Boot Probes (`management.endpoint.health.probes.enabled: true`) in den
+  jeweiligen `application.yml` Dateien.
+- **Docker-Compose**: Vereinheitlichung der Healthchecks in `dc-backend.yaml` auf den `/actuator/health/readiness`
+  Endpoint mit detaillierterer Diagnose (`--no-verbose`).
+
+### 2. Connectivity Refactoring (The Ping "Un-Abuse")
+
+- **Problem**: Der `ConnectivityTracker` im Frontend nutzte den `ping-service`, um den generellen Online-Status ("Cloud
+  synchronisiert") anzuzeigen. Der `ping-service` soll jedoch nur ein technischer Durchstich sein.
+- **Lösung**: Umstellung des `ConnectivityTracker` auf den neutralen `/actuator/health/readiness` Endpoint des
+  API-Gateways.
+- **Resultat**: Der `ping-service` ist wieder frei für seine ursprüngliche Bestimmung als technisches Validierungs-Tool.
+  Der Footer-Status repräsentiert nun korrekt die Erreichbarkeit der Cloud-Infrastruktur über das Gateway.
+
+## 🛠️ Technische Details
+
+- **Services**: `api-gateway`, `masterdata-service`, `events-service`, `ping-service`.
+- **Frontend**: `frontend:core:network` (`ConnectivityTracker.kt`).
+
+---
+**🧹 [Curator]**: Health-Checks und Connectivity-Logik bereinigt. Dokumentation aktualisiert.
+**👷 [Backend Developer]**: Alle Services sind nun auch unter Docker stabil `healthy`.
+**🏗️ [Lead Architect]**: Fachliche Trennung von System-Health und technischem Durchstich (Ping) wiederhergestellt.

frontend/core/network/src/commonMain/kotlin/at/mocode/frontend/core/network/ConnectivityTracker.kt

@@ -36,7 +36,7 @@ class ConnectivityTracker : KoinComponent {
 
   private suspend fun checkConnection(): Boolean {
     return try {
-      val response = client.get(NetworkConfig.baseUrl.trimEnd('/') + "/api/ping/health")
+      val response = client.get(NetworkConfig.baseUrl.trimEnd('/') + "/actuator/health/readiness")
       response.status.value in 200..299
     } catch (_: Exception) {
       false