hugocasa 89eaafe6d4 fix: address round-6 review findings on experiments ...

- hold the dataset lock across an experiment launch, so a delete landing between
  reading the cases and writing the experiment cannot recreate the deleted
  dataset's inputs
- match scorers between experiments on kind and path, not on label: labels
  default to a path's last segment, so f/a/quality and f/b/quality compared
  against each other
- average mean deltas over the cases both runs scored; comparing each run's own
  average reported a regression from a case the baseline never ran, with no
  regressed row to point at
- openapi: the row status is the job's, which is also canceled/skipped; runEval
  takes scorers; the update-case body no longer advertises source, which the
  handler deliberately ignores
- record why the experiment prefix cannot reach a sibling dataset

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-08-11 19:41:59 +02:00

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