refactor: standardize environment variable naming and add PING_SERVICE_URL configuration

Aligned environment variable naming across backend and infrastructure files for improved consistency (e.g., `SPRING_CLOUD_CONSUL` and `SPRING_SECURITY_OAUTH2_RESOURCESERVER`). Introduced `PING_SERVICE_URL` to support dynamic Ping-Service routing. Updated Docker Compose health checks, profiles, and memory settings for scalability and stability.

.env

@@ -10,7 +10,7 @@ PROJECT_NAME=meldestelle
 
 # Docker build versions (optional overrides)
 DOCKER_VERSION=1.0.0-SNAPSHOT
-DOCKER_REGISTRY=git.mo-code.at/Mocode-Software
+DOCKER_REGISTRY=git.mo-code.at/mocode-software
 DOCKER_BUILD_DATE=2026-02-02T15:00:00Z
 DOCKER_GRADLE_VERSION=9.3.1
 # Check if 25 is intended (Early Access) or if LTS 21 was meant
@@ -18,8 +18,13 @@ DOCKER_JAVA_VERSION=25
 DOCKER_NODE_VERSION=24.12.0
 DOCKER_NGINX_VERSION=1.28.0-alpine
 
+# JVM Power Flags (Lokal leer lassen, da Intel/AMD Architektur)
+JVM_OPTS_ARM64=
+
 # Postgres
 POSTGRES_IMAGE=postgres:16-alpine
+POSTGRES_SHARED_BUFFERS=256MB
+POSTGRES_EFFECTIVE_CACHE_SIZE=768MB
 POSTGRES_USER=pg-user
 POSTGRES_PASSWORD=pg-password
 POSTGRES_DB=pg-meldestelle-db
@@ -34,14 +39,15 @@ VALKEY_SERVER_HOSTNAME=valkey
 VALKEY_SERVER_PORT=6379
 VALKEY_SERVER_CONNECT_TIMEOUT=5s
 VALKEY_POLICY=allkeys-lru
-VALKEY_MAXMEMORY=256mb
+VALKEY_MAX_MEMORY=256MB
 SPRING_DATA_VALKEY_HOST=localhost
 SPRING_DATA_VALKEY_PORT=6379
 SPRING_DATA_VALKEY_PASSWORD=valkey-password
 
 # --- KEYCLOAK ---
 KEYCLOAK_IMAGE_TAG=26.4
-KC_HEAP_MAX=1024m
+KC_HEAP_MIN=512M
+KC_HEAP_MAX=1024M
 KC_COMMAND=start-dev --import-realm
 KC_ADMIN_USERNAME=kc-admin
 KC_ADMIN_PASSWORD=kc-password
@@ -54,22 +60,24 @@ KC_DEBUG_PORT=9000:9000
 
 # --- KEYCLOAK TOKEN VALIDATION ---
 # Public Issuer URI (must match the token issuer from browser/postman)
-KC_ISSUER_URI=http://localhost:8180/realms/meldestelle
+SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_ISSUER_URI=http://localhost:8180/realms/meldestelle
 # Internal JWK Set URI (for service-to-service communication within Docker)
-KC_JWK_SET_URI=http://keycloak:8080/realms/meldestelle/protocol/openid-connect/certs
+SPRING_SECURITY_OAUTH2_RESOURCESERVER_JWT_JWK_SET_URI=http://keycloak:8080/realms/meldestelle/protocol/openid-connect/certs
 
 # --- CONSUL ---
 CONSUL_IMAGE=hashicorp/consul:1.22.1
 CONSUL_PORT=8500:8500
 CONSUL_UDP_PORT=8600:8600/udp
 CONSUL_HOST=consul
-CONSUL_HTTP_PORT=8500
-SCLOUD_CONSUL_HOSTNAME=consul
-SCLOUD_CONSUL_PORT=8500
+SPRING_CLOUD_CONSUL_HOST=consul
+SPRING_CLOUD_CONSUL_PORT=8500
+SPRING_CLOUD_CONSUL_DISCOVERY_SERVICE_NAME=api-gateway
+SPRING_CLOUD_CONSUL_DISCOVERY_PREFER_IP_ADDRESS=true
 
 # --- Zipkin ---
 ZIPKIN_IMAGE=openzipkin/zipkin:3
-ZIPKIN_HEAP=256m
+ZIPKIN_MIN_HEAP=256M
+ZIPKIN_MAX_HEAP=512M
 ZIPKIN_PORT=9411:9411
 ZIPKIN_ENDPOINT=http://zipkin:9411/api/v2/spans
 ZIPKIN_SAMPLING_PROBABILITY=1.0
@@ -110,7 +118,6 @@ GATEWAY_SPRING_PROFILES_ACTIVE=docker
 GATEWAY_DEBUG=true
 GATEWAY_SERVICE_NAME=api-gateway
 GATEWAY_CONSUL_HOSTNAME=api-gateway
-GATEWAY_CONSUL_PREFER_IP=true
 
 # --- PING-SERVICE ---
 PING_SPRING_PROFILES_ACTIVE=docker