Document evalhub server command and server_config_file config key from eval-hub-sdk PR #149

[coderabbitai]

Summary

Document the new evalhub server CLI command group and related server configuration management introduced in eval-hub/eval-hub-sdk#149.

Background

PR eval-hub/eval-hub-sdk#149 adds:

• An evalhub server command group for managing the eval-hub-server lifecycle:
  • evalhub server run — run the server in the foreground.
  • evalhub server start — start the server as a background daemon (writes a PID file and log file, waits for the health endpoint before reporting success).
  • evalhub server stop — stop the background daemon (graceful shutdown with a timeout, then force-kill).
  • evalhub server status — report whether the server is running and healthy, including URL and log path when available.
• Server configuration management through the existing evalhub config workflow using a new server_config_file key:
  • evalhub config set server_config_file <path> — validates the YAML file and stores a profile-scoped copy under ~/.config/evalhub/server/<profile>/config.yaml.
  • evalhub config get server_config_file / show — displays the stored value.
  • evalhub config unset server_config_file — removes the stored config file and cleans up the profile directory.
• A new --unfold flag on evalhub config get to print the contents of file-based configuration values (currently only applicable to server_config_file).
• Support for TLS-enabled servers (health checks over HTTPS, https:// URLs reported in start/status output).

Requested documentation updates

• Add a new "Server" section to the CLI reference documenting evalhub server run|start|stop|status, including example invocations (foreground vs background) and description of PID/log file locations.
• Document the server_config_file config key: how to set/get/unset it, and the YAML validation requirements (must exist, be valid YAML, and be a mapping).
• Document the --unfold flag on evalhub config get, its mutual exclusivity with --unmask, and that it only applies to file-based config keys.
• Include examples covering: starting the server in the foreground, starting/stopping in the background, checking status, handling TLS, and removing the server config setting.

References

• PR: feat(cli): add server subcommand for eval-hub-server lifecycle management eval-hub-sdk#149
• Requested by: @ruivieira