rzv CLI 0.25.0: editor hints, tool guides and custom profile commands

The public CLI release adds editor connection hints and guides for OpenCode and Herdr, with custom runner commands awaiting service activation.

• rzv sandboxes ssh-config <sandbox-id> --writePrints connection commands for SSH and VS Code. The published editor guide also covers connecting Cursor over SSH. Detailed editor, OpenCode and Herdr setup guides are on GitHub. Integration end-to-end tests have run on shared; production checks remain pending.
• Custom runner profile and availability commands are published, but the production service remains switched off. Existing runner labels and pricing continue unchanged. Published commands do not make flexible profiles available in production.
• Install or update with the CLI installation guide. Downloads, checksums and technical release notes are published in release-2026-11-06-113624 on GitHub.