Self-hosted runners send their agent proxy URL and release finished code-review sessions

What

A self-hosted runner is a machine you run yourself to carry out remote Claude Code sessions.

• When agentProxyUrl is configured, the runner passes it to the server when it registers. It also adds it as agent_proxy_url when fetching a session from GET /v1/code/sessions/{id}/remote, which used to send no extra details.
• When a session ends with its code review done, the runner asks the server to release it, retrying if needed, so it is parked on the server. New log messages cover a release that is declined or fails.
• The runner reports what it can do differently. With an exec path set it reports nothing. Otherwise it reports the single-session capability plus one more. Before, it reported this only for a single-session runner with no debug token folder and no exec path.

Why

Runners behind a proxy now tell the server about it. Finished code-review sessions are handed back to the server instead of being left running, and what a runner registers as may change.