fix(metadata): reset lastIndex of unix manual page regex before testing

[btea]

QUERIES.unixManualPage is a global regex (/g), so its lastIndex persists between calls. UNIST.isTextWithUnixManual uses .test() on this shared instance while visiting text nodes: after a successful match, the next .test() starts from the end of the previous match, intermittently returning false for text that does contain a Unix manual page reference.

This resets lastIndex to 0 before each test so every node is matched from the start.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test#:~:text=They%20store%20a%20lastIndex%20from%20the%20previous%20match.%20Using%20this%20internally%2C%20test()%20can%20be%20used%20to%20iterate%20over%20multiple%20matches%20in%20a%20string%20of%20text%20(with%20capture%20groups).

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Project	Deployment	Actions	Updated (UTC)
api-docs-tooling	Ready	Preview	Jul 27, 2026 1:29pm

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[cursor]

PR Summary

Low Risk
Single-line behavioral fix in a query helper with no auth, data, or API surface changes.

Overview
Fixes intermittent false negatives when detecting Unix manual references (e.g. foo(1)) in MDAST text nodes during metadata parsing.

QUERIES.unixManualPage is a shared global regex (/g). UNIST.isTextWithUnixManual now sets lastIndex to 0 before each .test() so traversal does not inherit the previous match position. A patch changeset is included for @node-core/doc-kit.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.21%. Comparing base (cef45ca) to head (96d492e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #947   +/-   ##
=======================================
  Coverage   86.21%   86.21%           
=======================================
  Files         195      195           
  Lines       17690    17692    +2     
  Branches     1609     1609           
=======================================
+ Hits        15251    15253    +2     
  Misses       2433     2433           
  Partials        6        6           

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[avivkeller]

@btea is attempting to deploy a commit to the OpenJS Foundation Team on Vercel.

A member of the Team first needs to authorize it.

@nodejs/web-admins this shouldn't happen, we only want builds on api-docs-tooling

[MattIPv4]

@btea is attempting to deploy a commit to the OpenJS Foundation Team on Vercel.
A member of the Team first needs to authorize it.

@nodejs/web-admins this shouldn't happen, we only want builds on api-docs-tooling

The ignore step was already set to production only, I've now disabled the "Pull Request Comments" Git functionality, will see if that helps.