Reconcile worker instance backoff from State#2028
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Why
The worker still reset instance backoff by reacting directly to
InstanceDeleted. With snapshot bootstrap, that deletion may already be reflected in State and the original event may not replay. The backoff cleanup should therefore reconcile from State.How
KeyedBackoff.tracked_keys()so callers can inspect local backoff state without reaching into private fields.InstanceDeletedevent side effect.state.instances.tracked_keys()and worker backoff reconciliation.Tests
uv run pytest src/exo/utils/tests/test_keyed_backoff.py src/exo/worker/tests/unittests/test_worker_instance_backoff.pyuv run pytestuv run ruff check src/exo/utils/keyed_backoff.py src/exo/utils/tests/test_keyed_backoff.py src/exo/worker/main.py src/exo/worker/tests/unittests/test_worker_instance_backoff.pyuv run basedpyrightnix fmt