Runners are consistently running out of disk during parallel molecule
tests. The 2min healthcheck interval is too coarse — a single molecule
scenario can fill 10+ GB in 2 minutes. Reduce to 1min and lower disk
thresholds (60% warn, 70% critical) so pruning kicks in earlier.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
