The hand-run lock is a bind in the abstract socket namespace named by the state
root: atomic, exclusive, gone with its owner, so the probe, the unlink and the
takeover race are deleted. Every write to the state root and every spawn calls
guard(), which asks held() at that moment; Idunn's held() reads the lease each
time and reports a loss through the handler the daemon registered, so a request
admitted before the loss stops at its next write and a respawn cannot outlive it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
serve(runtime) listens first, writes the state root only once the runtime
holds it, answers Idunn's route challenge ahead of the cross-site refusal,
and fences on lease loss. --health is deleted; the pid file and /proc
reclaim move behind the hand-run runtime. Adds scripts/idunn-entry.mjs,
the kimodo and SOMA-X gitlinks, encode_texts for the child, and tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>