feat(gateway): add elevated gateway info

[elezar]

Summary

Add an elevated gateway info surface for live runtime metadata, including the initialized compute driver name and driver-reported capability snapshot.

openshell status now remains aligned with main: it uses the existing Health RPC and HTTP fallback behavior. Runtime driver details are exposed through openshell info, backed by the admin-gated GetGatewayInfo RPC.

Related Issue

None.

Related PRs

• feat(cli): add --output json/yaml to sandbox get, status, and sandbox create #1989 adds JSON/YAML output for openshell status as part of broader CLI structured-output work. This PR no longer changes openshell status output.

Changes

• Added GetGatewayInfo with gateway version, service status, and initialized compute driver info.
• Snapshot driver identity/version during compute runtime initialization and return it from the new admin-authenticated RPC.
• Added top-level openshell info -o table|json|yaml.
• Restored openshell status to the behavior present on main.
• Updated gateway docs and compute runtime architecture notes.

Testing

• mise run pre-commit passes
• Unit tests added/updated
• E2E tests added/updated (if applicable)

Attempted devenv shell -- mise --cd /home/elezar/dev/OpenShell run pre-commit through the host devenv at ~/.dotfiles/devenvs/openshell; it fails in this environment due to:

• helm:lint: chart metadata missing dependency postgresql
• rust:check/rust:lint: sqlx_macros dynamic library requires GLIBC_2.39
• test:rust: openshell-supervisor-network process identity shared-socket test failed

Additional checks run:

• nix develop -c cargo fmt --all
• nix develop -c cargo check -p openshell-cli --tests
• nix develop -c cargo check -p openshell-server --tests
• nix develop -c cargo check -p openshell-core --tests
• nix develop -c cargo test -p openshell-cli gateway_info_json -- --nocapture
• nix develop -c cargo test -p openshell-cli info_accepts_output_json -- --nocapture
• nix develop -c cargo test -p openshell-server --lib every_proto_rpc_has_an_annotation -- --nocapture
• nix develop -c cargo test -p openshell-server --lib every_annotated_path_matches_a_real_rpc -- --nocapture
• git diff --check

Manual smoke check against a branch-local Docker gateway:

target/debug/openshell info -o json

{
  "auth": null,
  "compute_drivers": [
    {
      "capabilities": {
        "driver_name": "docker",
        "driver_version": "29.2.1"
      },
      "name": "docker"
    }
  ],
  "gateway": "info-dev",
  "server": "http://127.0.0.1:19080",
  "status": "healthy",
  "version": "0.0.80-dev.7+g8fb2782a"
}

Checklist

• Follows Conventional Commits
• Commits are signed off (DCO)

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[github-actions]

🌿 Preview your docs: https://nvidia-preview-pr-2202.docs.buildwithfern.com/openshell

[TaylorMutch]

I like it 🚢

Stale review