Mig prep

[johnalotoski]

Overview:

• Migrates sanchonet environment from world
• Prepares to migrate preview and preprod from world
• Makes enabling updates to justfile recipes supportive of automation and migration activities

Details:

• Migrates sanchonet pools and corresponding relay groups from world to playground
• Adds 3 new preview pools and corresponding relay groups
• Adds 3 new preprod pools and corresponding relay groups
• Update flake/cluster.nix, flake/colmena.nix, .sops.yaml to reflect above block producer changes
• Updates justfile with:
  • adds a query-all recipe for getting status of multiple concurrent running environments
  • adds a set-default-cardano-env recipe for fast switching between environments
  • adds a start-demo recipe for forking a custom env into conway
  • adds a start-node recipe for generic environment start
  • adds a stop-node recipe for generic environment stop
  • updated list-machines recipe for handling of empty nixos machine config and empty ssh_config
  • updates query-tip to a generic query tip compatible with each environment