v1.4.170

Summary

SSH / remote-server reliability patch on top of 1.4.169: terminal reattach and liveness, host-surface materialization on reconnect, and terminate/timeout handling for remote PTYs.

What's Changed

• fix(terminal): truthful handle liveness + no forked resume tabs for hidden restorable panes by @Jinwoo-H in #12574
• fix(runtime): reject leaf terminal sends only on controller-proven PTY absence by @Jinwoo-H in #12578
• fix(runtime): seed terminal previews and titles from restore payloads by @Jinwoo-H in #12579
• fix(terminal): attach never-activated daemon sessions on remote subscribe and provider-read fallback by @Jinwoo-H in #12589
• fix(remote-runtime): materialize the host surface when reconnecting a terminal pane by @planderdev in #11542
• fix(ssh): preserve agent generation timeout budget by @Jinwoo-H in #12644
• fix(ssh): let terminate reach remote PTYs the app gave up reattaching (STA-3376) by @Jinwoo-H in #12642

Full Changelog: v1.4.169...v1.4.170