- Add the captcha-web service with environment variables, dependencies, and volume configurations.
- Replace existing Docker Hub image references with MDHub equivalents for all captcha services.
- Improve configuration with production-specific environment variables (`APP_ENV`) and updated volume bindings.
- Replace references to separate `php/Dockerfile` and `web/Dockerfile` with the unified `docker/Dockerfile`.
- Adjust target stages across services for development and production environments.
- Include jq in the Docker image for JSON processing.
- Refactor UNIT_SOURCE logic to cleanly update configuration using jq.
- Remove obsolete UNIT_SOURCE handling code.