fix(instance-id): distinguish a failed ps observation from proof of death (#954) - #970

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fix/954-pid-alive-observation

Commits on Aug 25, 2026

fix(instance-id): a failed ps observation is not proof of death -- distinguish it with a $$ canary (#954)
fujibee
committed
3e15c7f
fix(instance-id): take the canary from a full ps snapshot, not a filtered query (#954)
fujibee
committed
d869375
fix(instance-id): trust the snapshot's "absent" only when ps exited 0 (#954)
fujibee
committed
95f8ce1
fix(instance-id): keep the ps probe out of set -e's reach (#954)
fujibee
committed
a20ef46