fix: Update test database connection to use host.docker.internal

- Changed DB_HOST from localhost to host.docker.internal
- Added extra_hosts configuration to enable host-gateway access
- This allows test container to connect to the existing PostgreSQL database

docker-compose.test.yml

@@ -8,7 +8,7 @@ services:
     ports:
       - "8081:8081"
     environment:
-      - DB_HOST=localhost
+      - DB_HOST=host.docker.internal
       - DB_PORT=5432
       - DB_NAME=calejo
       - DB_USER=calejo
@@ -21,6 +21,8 @@ services:
       - REST_API_PORT=8081
       - HEALTH_MONITOR_PORT=9091
       - LOG_LEVEL=DEBUG
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
     volumes:
       - ./static:/app/static
       - ./logs:/app/logs