refactor(infra): Restrukturierung Config-Ordner & Einführung von Docker-Profilen

Umfangreiches Refactoring der Projektkonfiguration zur klaren Trennung von Build-, Runtime- und Applikations-Logik.

Änderungen im Detail:
- Struktur: Neuorganisation des `config/` Verzeichnisses in logische Bereiche:
  - `config/docker`: Reine Infrastruktur-Configs (Postgres, Redis, Nginx, Monitoring).
  - `config/quality`: Statische Code-Analyse (Detekt, Lint).
  - `config/app`: Gemeinsame Spring-Boot-Konfigurationen.
- Docker Compose:
  - Einführung von Profilen (`infra`, `backend`, `ops`, `gui`, `tools`) für gezieltes Starten von Teilbereichen.
  - Anpassung aller Volume-Pfade auf die neue Struktur.
- Spring Boot Config:
  - Zentralisierung gemeinsamer Einstellungen (Datasource, Redis, JPA) in `config/app/base-application.yml`.
  - Parametrisierung der Hosts für nahtlosen Wechsel zwischen Docker und Localhost.
  - Bereinigung der service-spezifischen `application.yaml` Dateien (z.B. Ping-Service).
- Cleanup: Entfernen redundanter "Ghost-Files" (`versions.toml`, `central.toml`, `config/.env`), um eine echte Single Source of Truth (SSoT) zu gewährleisten.

backend/infrastructure/gateway/Dockerfile

@@ -14,7 +14,6 @@ ARG JAVA_VERSION
 ARG BUILD_DATE
 ARG VERSION
 
-# Infrastructure-specific arguments (docker/build-args/infrastructure.env)
 # Note: No runtime profiles as build ARGs
 
 # ===================================================================

backend/infrastructure/gateway/src/main/resources/application.conf

@@ -1,3 +0,0 @@
-# Placeholder HOCON configuration for compatibility with legacy test scripts
-# The actual configuration is provided in application.yml.
-# This file ensures scripts that check for application.conf do not fail.

backend/services/ping/Dockerfile

@@ -14,18 +14,21 @@ ARG JAVA_VERSION
 ARG BUILD_DATE
 ARG VERSION
 
-# Service-specific arguments (docker/build-args/services.env)
 # Note: No runtime profiles as build ARGs
 
 # Build stage: compile the ping-service JAR inside Docker
 FROM gradle:${GRADLE_VERSION}-jdk${JAVA_VERSION}-alpine AS builder
 
+# Re-declare build arguments for this stage
+ARG VERSION
+ARG BUILD_DATE
+
 # Add metadata labels
-LABEL stage=builder \
-      service=ping-service \
-      maintainer="Meldestelle Development Team" \
-      version="${VERSION}" \
-      build.date="${BUILD_DATE}"
+LABEL stage=builder
+LABEL service=ping-service
+LABEL maintainer="Meldestelle Development Team"
+LABEL version="${VERSION}"
+LABEL build.date="${BUILD_DATE}"
 
 WORKDIR /workspace
 

backend/services/ping/ping-service/src/main/resources/application.yaml

@@ -1,18 +1,46 @@
+# Port, auf dem das Ping-Service läuft
+server:
+  port: ${PING_SERVICE_PORT:8082}
+
 spring:
   application:
     name: ping-service
+  profiles:
+    active: ${SPRING_PROFILES_ACTIVE:dev}
+
+#  datasource:
+#    url: ${SPRING_DATASOURCE_URL:jdbc:postgresql://localhost:5432/pg-meldestelle-db}
+#    username: ${SPRING_DATASOURCE_USERNAME:pg-user}
+#    password: ${SPRING_DATASOURCE_PASSWORD:pg-password}
+#    driver-class-name: org.postgresql.Driver
+
+#  # --- REDIS KONFIGURATION (NEU) ---
+#  data:
+#    redis:
+#      host: ${SPRING_DATA_REDIS_HOST:localhost}
+#      port: ${SPRING_DATA_REDIS_PORT:6379}
+#      password: ${SPRING_DATA_REDIS_PASSWORD:redis-password} # Leer lassen als Default
+#      # Optional: Timeouts für Stabilität
+#      connect-timeout: 5s
+#      timeout: 2s
+
+#  jpa:
+#    database-platform: org.hibernate.dialect.PostgreSQLDialect
+#    hibernate:
+#      ddl-auto: update
+#    open-in-view: false
+
   cloud:
     consul:
       host: ${CONSUL_HOST:localhost}
       port: ${CONSUL_PORT:8500}
+      enabled: ${CONSUL_ENABLED:true}
       discovery:
-        enabled: true
-        register: true
+        enabled: ${CONSUL_ENABLED:true}
+        register: ${CONSUL_ENABLED:true}
         health-check-path: /actuator/health
         health-check-interval: 10s
-
-server:
-  port: ${SERVER_PORT:${PING_SERVICE_PORT:8082}}
+        instance-id: ${spring.application.name}-${server.port}-${random.uuid}
 
 management:
   endpoints:
@@ -22,6 +50,7 @@ management:
   endpoint:
     health:
       show-details: always
+      show-components: always
       probes:
         enabled: true
   tracing: