Prevent hangs in kernel evaluation by bounding worker waits #289
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While looking through the parallel evaluation flow, I noticed it
block unconditionally on
AsyncResult.get()when collecting kernelresults.
If a generated kernel hangs (e.g. infinite loop, compiler stall, or CUDA
edge case), the entire env can deadlock and never make progress. In a
permissionless / LLM-generated setting this is pretty easy to trigger,
even accidentally.