dragon+orbit backends: idempotent cancels; dragon failure tracebacks - #91

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andre-merzky wants to merge 4 commits into

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fix/dragon-cancel-and-traceback

Commits on Sep 1, 2026

dragon: cancel of an untracked task is a no-op, not an error

andre-merzky
and
claude
committed
448f21d
dragon: log the remote traceback when a task fails

andre-merzky
and
claude
committed
9791640
tests: pin the dragon cancel and traceback contracts, dragon-less

andre-merzky
and
claude
committed
c50df76
orbit backend: a cancel racing its task's completion is a no-op

andre-merzky
and
claude
committed
13d7fb1