Implement a secure MPC node key enrollment ceremony CLI

[Marvy247]

Create a CLI tool for the initial key generation ceremony: generates node keypair, splits into secret shares, distributes to committee members, and registers with committee-registry.

[Ikechukwu-Patrick]

@Ikechukwu-Patrick has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello maintainer, please 🙏 I would love to work on this issue.

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[roycebtx]

@roycebtx has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer, I'd love to contribute to this issue. I understand the requirements and am ready to begin work as soon as it's assigned. Thank you for your consideration.

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[vincentchimene]

@vincentchimene has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi! I’d like to contribute to #247 – Implement a secure MPC node key enrollment ceremony CLI. I’m interested in improving secure infrastructure workflows through reliable cryptographic tooling and distributed key management.

I can implement the CLI workflow for the initial MPC node enrollment ceremony, including secure node keypair generation, secret sharing, committee member distribution, and registration with the committee registry. I’ll focus on safe handling of sensitive key material, clear validation and error reporting, and test coverage for the complete enrollment lifecycle to ensure the process is secure, repeatable, and maintainable.

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