Revert "Revert scheduler update (#46659)" (#46671)

Reland the new scheduler

Release Notes:

- N/A

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Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
4aa3cd07c3Conrad Irwin committed on 1/14/2026, 7:19:13 AM· committed by GitHubparenta126383
64 files changedLine totals unavailable