Conduct Trusted Setup Ceremony and Verification Key Management

[Steake]

Part of Epic: #72 - RC2: Zero-Knowledge Proof Production

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Goal: Set up production ready Groth16 proving and verification keys using multi-party computation ceremony.

Requirements:

• Conduct multi-party trusted setup for circuits
• Ensure destruction of toxic waste
• Publish keys, document ceremony and invite contributors

Acceptance Criteria:

• Setup completed with audit trail
• Keys published and verifiable by third-party

See RELEASE_REQUIREMENTS.md

[Steake]

[autopilot] @copilot please start work on this issue and open a PR that references #46 in the PR description.

[Steake]

Closing as duplicate of #48.