Add MiniMax Code to the ACP Registry

[hetaoBackend]

Summary

• add MiniMax Code 0.1.2 to the ACP Registry
• install the published @minimax-ai/code npm package and launch its native ACP server with acp
• include a 16x16 monochrome icon for registry clients

Why

MiniMax Code implements ACP over stdio and exposes terminal authentication during the initialize handshake. Registering the published package makes it discoverable and installable by ACP clients.

Validation

• uv run --with jsonschema .github/workflows/build_registry.py --dry-run
  • validated 40 agents successfully
• uv run --with agent-client-protocol .github/workflows/verify_agents.py --auth-check --agent minimax-code --clean --verbose
  • installed the public npm package in an isolated sandbox
  • returned Auth OK: minimax-code-login(terminal)
• uv run .github/workflows/update_versions.py --agents minimax-code
  • recognized 0.1.2 as the current npm release with no errors
• git diff --check

[hetaoBackend]

Hi maintainers — MiniMax Code is now published on npm, and both the registry validation and isolated ACP authentication handshake pass locally. Could you please approve the first-time contributor workflow run and take a look at this PR when you have a chance? Thank you!

[hetaoBackend]

@benbrandt Hi Ben — could you help approve the first-time contributor workflow and review this MiniMax Code registry entry? The npm package is published, and both registry validation and the isolated ACP auth check pass locally. Thank you!

[hetaoBackend]

@benbrandt The registry entry has now been updated to the published @minimax-ai/code@0.1.6 release. Could you please review and merge PR #515 when convenient? The registry validation and isolated ACP auth check passed locally. Thank you!