Vendor GeoLite2-Country.mmdb in the repository so agent builds still
work when the remote download is unavailable. Update the fetch script
and agent Dockerfile to prefer a fresh download and fall back to the
committed database file.
- Merge all files inside openflare-server to the repository root directory.
- Relocate agent, relay, and flared subprojects from internal/ to internal/apps/.
- Combine docker-compose files and update build context paths to root.
- Update GitHub workflows and Dockerfiles to refer to new directories and package names.
- Rewrite Go package imports across all files.
- Resolve database renew test race condition and clean up docs.
ryan