[dxnnystyles]

Summary

makes missing manifest sections and dataset columns actionable in benchmark errors, with available columns and a close-match suggestion when one fits.

Type

• Audit
• Explainer
• Bug fix
• Other

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How I Tested

• tests/test_manifest.py: 54 passed.
• Focused benchmark regressions: 4 passed.
• make test: 1,299 passed, 1 skipped.
• ruff check on the four changed files and git diff --check passed.
• make lint stops at existing closed issue references in ROADMAP.md (JSON string cells "NA" and "" are missing in the web engine and ordinary values in Python #1036, XLSX date cells are labelled 2020-01-01 00:00:00 by Python and by their serial number (43831) by the web engine #1039, Numeric column headers keep their type in Python (the integer 2020) and are text in the web engine #1045, An empty header cell is named Unnamed: 1 by pandas and an empty string by the web engine #1046, Two long group labels that share their first 29 characters still print identically after the ellipsis fix #1038); the em-dash and broken-link checks passed, as did the other applicable local lint checks.
• The full suite reported 828 model and numerical warnings.

Linked issue

Closes #1178

[vercel]

@dxnnystyles is attempting to deploy a commit to the yashkewlani2020-gmailcom's projects Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

@yakew7 @ahmdkaml - new PR touching a path you own, please review.