fix(daemon-client): timeout reset clears daemon.json and daemon.lock without proving ownership

[thymikee]

Problem

The daemon-client timeout reset path in src/daemon-client/daemon-client-timeout.ts (resetDaemonState, around line 191) unlinks daemon.json and daemon.lock without proving that this client's daemon is the process those files describe. It is the client-side twin of #3087: a client giving up on a slow daemon deletes the metadata of a daemon that is alive and simply busy, or of a successor that took over meanwhile.

Direction

Route the cleanup through the same fence the daemon uses — readRegisteredDaemonOwnership for the info file, and the existing liveness proof for the lock — and decline with a typed reason instead of unlinking. Client cleanup is what makes an absent record normal for the daemon at exit, so this path must stay fail-closed rather than simply deleting less.

Refs #3087, #3102

[thymikee]

Implemented and verified on main in #3127 (merge 2212eacf5b). Timeout reset now awaits the central stopAndRetireDaemon operation: verified process lifetime, confirmed exit, protected registration re-read, ownership-checked metadata removal and typed retained outcomes. Raw client info/lock removal helpers are gone. Replaced, unreadable or unproven metadata is retained.

The final head passed ownership/retirement controls, its affected gate and all 21 GitHub checks. Closing the metadata/lock ownership defect. The separate question of whether one timed-out request should terminate sibling sessions or host-wide runners remains open in #3177.