Update Docker Compose files for production environment and enhance unit of measure handling

- Changed the default environment variable from 'development' to 'production' in docker-compose.prod.yml and docker-compose.yml.
- Added SITAR API credentials to the environment variables in both Docker Compose files.
- Updated the seed data for customs units of measure to include a76_unit_code.
- Refactored the UnitOfMeasureCustoms model and related DTOs to replace scaii_unit_code with a76_unit_code for consistency.
- Adjusted frontend components to reflect the updated unit of measure structure and ensure proper handling of the new a76_unit_code field.

docker-compose.prod.yml

@@ -158,7 +158,7 @@ services:
     container_name: anexo76-backend
     environment:
       - DEBUG=${DEBUG:-True}
-      - ENVIRONMENT=${ENVIRONMENT:-development}
+      - ENVIRONMENT=${ENVIRONMENT:-production}
       - PYTHONUNBUFFERED=1
       - PYTHONDONTWRITEBYTECODE=1
       - CORE_DB_HOST=${CORE_DB_HOST:-postgres-a76}
@@ -227,6 +227,9 @@ services:
       - CORE_DB_NAME=${CORE_DB_NAME:-anexo76_core}
       - CORE_DB_USER=${CORE_DB_USER:-postgres}
       - CORE_DB_PASSWORD=${POSTGRES_APP_PASSWORD:-postgres}
+      - SITAR_API_URL=${SITAR_API_URL}
+      - SITAR_API_USER=${SITAR_API_USER}
+      - SITAR_API_PASSWORD=${SITAR_API_PASSWORD}
     depends_on:
       - backend
       - valkey
@@ -247,7 +250,7 @@ services:
     image: dev.aduanasoft.com/anexo76/frontend:latest
     container_name: anexo76-frontend
     environment:
-      - NODE_ENV=${NODE_ENV:-development}
+      - NODE_ENV=${NODE_ENV:-production}
       - VITE_API_URL=${VITE_API_URL:-https://anexo76-dev.aduanasoft.com/api}
       - INTERNAL_API_URL=${INTERNAL_API_URL:-http://backend:8000/api/}
       - VITE_KEYCLOAK_URL=${VITE_KEYCLOAK_URL:-https://anexo76-dev.aduanasoft.com/kcauth/}