Summary

Fix two bugs in the Fern docs CI configuration: missing basepath in instances.url and publish step not surfacing the published URL.

Motivation / Context

Fixes: #567
Related: N/A

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• Build/CI/tooling

Component(s) Affected

• Docs/examples (docs/, examples/)

Implementation Notes

1. fern/docs.yml instances.url was https://aicr.docs.buildwithfern.com — missing the /aicr basepath required by basepath-aware: true. Verified by running fern generate --docs --preview locally; the correct URL is https://aicr.docs.buildwithfern.com/aicr.

2. publish-fern-docs.yml ran fern generate --docs as a bare command. Now captures output, extracts the published URL (stripping the duplicate parenthesised copy that breaks GitHub's auto-linker), and writes it to the job step summary.

Testing

Verified fern generate --docs --preview locally — preview published successfully at https://nvidia-preview-test-preview.docs.buildwithfern.com/aicr. URL extraction regex confirmed against actual output.

Risk Assessment

• Low — Isolated change, well-tested, easy to revert

Rollout notes: N/A

Checklist

• I did not skip/disable tests to make CI green
• Changes follow existing patterns in the codebase
• Commits are cryptographically signed (git commit -S)