* Add SDK health wait gate
* Default connect to waiting for health
* Document connect health wait default
* Add abort signal to connect health wait
* Refactor SDK health probe helper
* Update quickstart health wait note
* Remove example health polling
* Fix docker example codex startup
- Replace invalid Codex mode values ("plan", "build") with valid ones
("auto", "full-access") in agent-sessions.mdx and sdk-overview.mdx
- Update CLAUDE.md stable method enumerations to include new session
config methods (setSessionMode, setSessionModel, etc.)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>