- Add new `DOCKER_MODE` form field to choose between `dood` and `dind` modes, removing old `PRIVILEGED` mode field and `-dind` variant application
- Update `docker-compose.yml` to conditionally include `dind` service based on mode, and refactor `init.sh` to dynamically set `DOCKER_HOST` environment variable
- Refactor `register.sh` to handle both modes, configure runner accordingly, update default values for registration fields, and define the default job container base image as node:lts
- Update README with detailed security risk warnings for both modes, remove version selection instructions, and add usage examples for custom container images and installing docker client in workflows
- rename `forgejo-runner-dind` app directory to `forgejo-runner` to consolidate versions
- delete old standalone `forgejo-runner-dind` app files (README.md, data.yml, logo.png)
- move existing `12.6.2-dind` version files under the new unified `forgejo-runner` app
- update configuration for both DooD and DinD deployment modes within the unified app
- add new `README_en.md` file with english documentation
- update main `README.md` with improved product introduction and clearer version comparison
- add `PRIVILEGED` mode configuration option to data.yml
- update docker-compose files for both versions with refined environment variable usage and labels
- standardize service names and container naming conventions