3f33ed30ae
On-glass the lazy (first-session) claim let a second host started while the freshly-restarted service sat idle win the mutex and ADD a monitor on the real driver — priority backwards. The claim is now a process-global, retryable slot (a failed claim is not memoized, so it heals once the other instance exits), and `serve` claims it before any client can connect; ensure_device keeps the lazy claim for standalone punktfunk1-host runs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>