Remove outdated BillingController implementation, resolve conflicting bean definitions across modules, and retain the updated BillingController for consistency with frontend API logic.

dc-ops.yaml

@@ -10,17 +10,19 @@ services:
     image: "${MAILPIT_IMAGE:-axllent/mailpit:v1.29}"
     container_name: "${PROJECT_NAME:-meldestelle}-mailpit"
     restart: unless-stopped
-    profiles: [ "dev-tools", "all" ]
     ports:
       - "${MAILPIT_WEB_PORT:-8025:8025}" # Web UI
       - "${MAILPIT_SMTP_PORT:-1025:1025}" # SMTP Port
     healthcheck:
       test: [ "CMD", "wget", "--spider", "-q", "http://localhost:8025/" ]
-      interval: 30s
-      timeout: 10s
+      interval: 10s
+      timeout: 5s
       retries: 3
     networks:
       meldestelle-network:
+        aliases:
+          - "mailpit"
+    profiles: [ "dev-tools", "all" ]
 
   # --- DATENBANK-MANAGEMENT-TOOL: pgAdmin4 ---
   pgadmin:
@@ -59,8 +61,8 @@ services:
         condition: "service_healthy"
     healthcheck:
       test: [ "CMD", "wget", "--spider", "-q", "http://localhost:9187/metrics" ]
-      interval: 30s
-      timeout: 10s
+      interval: 10s
+      timeout: 5s
       retries: 3
     networks:
       meldestelle-network: