Fix link checking

[mcclowes]

@pzaichkina I think this fixes the link checking failures?
Also, added a way of link checking from the CLI (linknator, which we used to use too)

---

Note

Updates the link-check GitHub Action to run Linkinator against Vercel preview deployments and comment filtered results, and adds a links:check npm script with linkinator as a dev dependency.

• CI/CD:
  • Overhauls /.github/workflows/check-links.yml to use linkinator against Vercel preview URLs (with API lookup and fallback), or https://docs.codat.io on manual runs.
  • Adds workflow permissions for contents, pull-requests, and issues.
  • Sets up Node 20, installs linkinator, runs with recurse/skip/timeouts, and continues on error while failing the job if filtered broken links remain.
  • Deletes previous bot comments and posts a single comment summarizing results (filters out 403, 500, and 0).
• NPM:
  • Adds linkinator to devDependencies and a links:check script: linkinator ./build --recurse --verbosity error --skip ".*github.*|.*localhost.*".

^{Written by Cursor Bugbot for commit 5459cdf. This will update automatically on new commits. Configure here.}

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Project	Deployment	Review	Updated (UTC)
codat-docs	Ready	Preview, Comment	Dec 15, 2025 4:52pm