GitHub Copilot agent runtime (OpenClaw plugin)

Bundled OpenClaw plugin that registers a copilot agent harness backed by @github/copilot-sdk and the GitHub Copilot CLI.

The harness claims the canonical subscription github-copilot provider and is opt-in only — selection requires explicit agentRuntime.id: "copilot" on a model or provider entry; auto never picks it. PI remains the default embedded runtime.

See GitHub Copilot agent runtime for configuration, doctor probes, transcript mirroring, compaction, side questions, replay, and the supported-surface contract. See qa/copilot-capabilities.md for the SDK capability inventory the harness is pinned to.