first stab at excluding content from size prop

[LinKCoding]

Overview

Restricts ColumnConfig.size so consumers of DataGrid, DataTable, and DataList can no longer set size: 'content' on column definitions — that value remains reserved for internal control columns (e.g. select/expand).

• Updates ColumnConfig.size in packages/gamut/src/DataList/types.ts from ListColProps['size'] to Exclude<ListColProps['size'], 'content'>
• sm, md, lg, and xl column sizes remain available
• Adds commented-out type-check snippets in DataTable.tsx and DataList.tsx for local verification

PR Checklist

• Related to designs:
• Related to JIRA ticket: [ABC-123]
• Version plan added/updated (or not needed)
• I have run this code to verify it works
• This PR includes unit tests for the code change
• This PR includes testing instructions tests for the code change
• The alpha package of this PR is passing end-to-end tests in all relevant Codecademy repositories

Testing Instructions

Don't make me tap the sign.

1. See that tests pass.
2. Go to DataList.tsx and/or DataTable.tsx
3. Uncomment the TestingDataTable or TestingDataList snippet in packages/gamut/src/DataList/DataTable.tsx or DataList.tsx and confirm TypeScript errors on the column with size: 'content'.
4. ...
5. Celebrate

PR Links and Envs

Repository	PR Link
Monolith	Monolith PR
Mono	Mono PR

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 0d74ba0

---

☁️ Nx Cloud last updated this comment at 2026-06-17 20:27:26 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.89%. Comparing base (880fb1e) to head (0d74ba0).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3378      +/-   ##
==========================================
- Coverage   90.38%   89.89%   -0.50%     
==========================================
  Files         398      270     -128     
  Lines        6576     5660     -916     
  Branches     2132     1905     -227     
==========================================
- Hits         5944     5088     -856     
+ Misses        624      564      -60     
  Partials        8        8              

Flag	Coverage Δ
main	?
pull-request	89.89% <ø> (?)

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[github-actions]

🚀 Styleguide deploy preview ready!

Preview URL: https://6a3304078b3551fe43da5adb--gamut-preview.netlify.app
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[codecademydev]

📬 Published Alpha Packages:

Package	Version	npm	Diff
@codecademy/gamut	72.0.3-alpha.982f9f.0	npm	diff
@codecademy/gamut-icons	9.57.10-alpha.982f9f.0	npm	diff
@codecademy/gamut-illustrations	0.58.16-alpha.982f9f.0	npm	diff
@codecademy/gamut-kit	3.0.3-alpha.982f9f.0	npm	diff
@codecademy/gamut-patterns	0.10.35-alpha.982f9f.0	npm	diff
@codecademy/gamut-styles	20.0.3-alpha.982f9f.0	npm	diff
@codecademy/gamut-tests	6.0.6-alpha.982f9f.0	npm	diff
@codecademy/variance	0.26.2-alpha.982f9f.0	npm	diff
eslint-plugin-gamut	2.4.4-alpha.982f9f.0	npm	diff