Integrate billing-service microservice: add API gateway routing, service discovery with Consul, Docker support, and Spring configuration. Update frontend with API integration, BillingRepository, and BillingViewModel.

dc-backend.yaml

@@ -63,6 +63,7 @@ services:
       EVENTS_SERVICE_URL: "http://events-service:8085"
       ZNS_IMPORT_SERVICE_URL: "http://zns-import-service:8095"
       RESULTS_SERVICE_URL: "http://results-service:8088"
+      BILLING_SERVICE_URL: "http://billing-service:8087"
 
     depends_on:
       postgres:
@@ -466,6 +467,78 @@ services:
     volumes:
       - ./config/app/base-application.yaml:/workspace/config/application.yml:Z
 
+  # --- MICROSERVICE: Billing Service ---
+  billing-service:
+    image: "${DOCKER_REGISTRY:-git.mo-code.at/mo-code}/billing-service:${DOCKER_TAG:-latest}"
+    build:
+      context: .
+      dockerfile: backend/services/billing/billing-service/Dockerfile
+      args:
+        GRADLE_VERSION: "${DOCKER_GRADLE_VERSION:-9.3.1}"
+        JAVA_VERSION: "${DOCKER_JAVA_VERSION:-25}"
+        VERSION: "${DOCKER_VERSION:-1.0.0-SNAPSHOT}"
+        BUILD_DATE: "${DOCKER_BUILD_DATE}"
+    labels:
+      - "org.opencontainers.image.created=${DOCKER_BUILD_DATE}"
+    container_name: "${PROJECT_NAME:-meldestelle}-billing-service"
+    restart: unless-stopped
+    ports:
+      - "${BILLING_PORT:-8087:8087}"
+      - "${BILLING_DEBUG_PORT:-5012:5012}"
+    environment:
+      SPRING_PROFILES_ACTIVE: "${BILLING_SPRING_PROFILES_ACTIVE:-docker}"
+      DEBUG: "${BILLING_DEBUG:-true}"
+      SERVER_PORT: "${BILLING_SERVER_PORT:-8087}"
+
+      # --- KEYCLOAK ---
+      SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_ISSUER_URI: "${KC_ISSUER_URI:-http://localhost:8180/realms/meldestelle}"
+      SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_JWK_SET_URI: "${KC_JWK_SET_URI:-http://keycloak:8080/realms/meldestelle/protocol/openid-connect/certs}"
+
+      # --- CONSUL ---
+      SPRING_CLOUD_CONSUL_HOST: "${CONSUL_HOST:-consul}"
+      SPRING_CLOUD_CONSUL_PORT: "${CONSUL_HTTP_PORT:-8500}"
+      SPRING_CLOUD_CONSUL_DISCOVERY_SERVICE_NAME: "${BILLING_SERVICE_NAME:-billing-service}"
+      SPRING_CLOUD_CONSUL_DISCOVERY_PREFER_IP_ADDRESS: "${BILLING_CONSUL_PREFER_IP:-true}"
+
+      # - DATENBANK VERBINDUNG -
+      SPRING_DATASOURCE_URL: "${POSTGRES_DB_URL:-jdbc:postgresql://postgres:5432/pg-meldestelle-db}"
+      SPRING_DATASOURCE_USERNAME: "${POSTGRES_USER:-pg-user}"
+      SPRING_DATASOURCE_PASSWORD: "${POSTGRES_PASSWORD:-pg-password}"
+
+      # --- VALKEY ---
+      SPRING_DATA_VALKEY_HOST: "${VALKEY_SERVER_HOSTNAME:-valkey}"
+      SPRING_DATA_VALKEY_PORT: "${VALKEY_SERVER_PORT:-6379}"
+
+      # --- ZIPKIN ---
+      MANAGEMENT_ZIPKIN_TRACING_ENDPOINT: "${ZIPKIN_ENDPOINT:-http://zipkin:9411/api/v2/spans}"
+
+    depends_on:
+      postgres:
+        condition: "service_healthy"
+      keycloak:
+        condition: "service_healthy"
+      consul:
+        condition: "service_healthy"
+      valkey:
+        condition: "service_healthy"
+      zipkin:
+        condition: "service_started"
+
+    healthcheck:
+      test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8087/actuator/health/readiness" ]
+      interval: 15s
+      timeout: 5s
+      retries: 5
+      start_period: 40s
+
+    networks:
+      meldestelle-network:
+        aliases:
+          - "billing-service"
+    profiles: [ "backend", "all" ]
+    volumes:
+      - ./config/app/base-application.yaml:/workspace/config/application.yml:Z
+
   # --- MICROSERVICE: Series Service ---
   series-service:
     image: "${DOCKER_REGISTRY:-git.mo-code.at/mo-code}/series-service:${DOCKER_TAG:-latest}"