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.yml

@@ -290,6 +290,9 @@ services:
       - KEYCLOAK_CLIENT_ID=${KEYCLOAK_CLIENT_ID:-anexo76-backend}
       - KEYCLOAK_CLIENT_SECRET=${KEYCLOAK_CLIENT_SECRET:-dev-secret}
       - VALKEY_URL=redis://valkey:6379/0
+      - SITAR_API_URL=${SITAR_API_URL}
+      - SITAR_API_USER=${SITAR_API_USER}
+      - SITAR_API_PASSWORD=${SITAR_API_PASSWORD}
     depends_on:
       - backend
       - valkey