Add Velocity-CTD Egg

[ItsDavloooDev]

Description

Adds a new Pterodactyl egg for Velocity-CTD, a fork of Velocity, including:

• installation from GitHub releases (jar *-all.jar);
• automatic download of velocity.toml for Velocity-CTD;
• bind in velocity.toml collegato alla porta di default del server.

Resolves #

Checklist for all submissions

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you tested and reviewed your changes with confidence that everything works?
• Did you branch your changes and PR from that branch and not from your master branch?
  • If not, why?: n/a

• You verify that the start command applied does not use a shell script
  • If some script is needed then it is part of a current yolk or a PR to add one
• The egg was exported from the panel

New egg Submissions

1. Does your submission pass tests (server is connectable)?
2. Does your egg use a custom docker image?
   • Have you tried to use a generic image?
   • Did you PR the necessary changes to make it work?
3. Have you added the egg to the main README.md and any other README files in subdirectories of the egg according to the alphabetical order?
4. Have you added a unique README.md for the egg you are adding according to the alphabetical order?
5. You verify that the start command applied does not use a shell script
   • If some script is needed then it is part of a current yolk or a PR to add one
6. The egg was exported from the panel

[Copilot]

Pull request overview

This PR adds a new Pterodactyl egg for Velocity-CTD under minecraft/proxy/java/velocity-ctd, including an installation script that downloads the *-all.jar from GitHub Releases and a bundled velocity.toml template intended to have its bind port rewritten to the server’s default allocation.

Changes:

• Added egg-velocity-ctd.json defining the Velocity-CTD egg, variables, and GitHub Releases-based installer.
• Added a velocity.toml template for Velocity-CTD.
• Added a per-egg README.md file (currently empty in this PR).

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 4 comments.

File	Description
minecraft/proxy/java/velocity-ctd/egg-velocity-ctd.json	Defines the new Velocity-CTD egg, install script, and config rewriting.
minecraft/proxy/java/velocity-ctd/velocity.toml	Provides the default Velocity-CTD configuration template used by the installer.
minecraft/proxy/java/velocity-ctd/README.md	Intended documentation for the new egg (currently empty).

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