chore: clean-up

[Planeshifter]

Description

What is the purpose of this pull request?

Follow-up fixes for commits merged to develop between 2026-07-19T13:04:31-07:00 (2b91bfe) and 2026-07-20T00:58:01-07:00 (2f69188).

This pull request:

• blas/ext/base/ndarray/gxdy: the README examples (blas/ext/base/ndarray/gxdy/README.md, introduced in 64d2677) generate y via discreteUniform( [ 10 ], -100, 100, opts ), allowing zero divisors; changed the bounds to 1, 100 to match examples/index.js and the dxdy/sxdy siblings.
• blas/ext/base/dfirst-index-less-than: removed the stray, unused @stdlib/types triple-slash reference directive from blas/ext/base/dfirst-index-less-than/docs/types/index.d.ts (introduced in bd18166); the file only touches Float64Array/number, and neither sfirst-index-less-than nor dfirst-index-equal carry it.
• blas/ext/base/dfirst-index-less-than: removed the dead y declaration in the "fourth argument" test block of dfirst-index-less-than/docs/types/test.ts, left over from bd18166 where y was never referenced once the fourth argument was swapped for invalid values — matches sfirst-index-less-than and dfirst-index-equal, which never declared it.
• blas/ext/base/dfirst-index-less-than: fixed the repl.txt signature heading in dfirst-index-less-than/docs/repl.txt to include the .ndarray suffix, matching the examples below it and sfirst-index-less-than/dfirst-index-equal; missed in bd18166.

Related Issues

Does this pull request have any related issues?

No.

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

Validation. All 24 commits merged to develop in the 24-hour window were reviewed for (1) stdlib style-guide compliance (docs/style-guides), audited by comparison against established sibling/reference packages (dfirst-index-equal, sfirst-index-less-than, dxdy, sxdy), and (2) bugs in the introduced code (logic, dtype consistency across d/s/g variants, stride/offset handling, C sources, ULP test migrations). Only objective, independently re-verified issues were retained; subjective concerns, style preferences not required by the style guides, test-coverage gaps, and anything requiring changes outside the reviewed diff were deliberately excluded. Bot-generated churn (equation SVG CDN-hash bumps, regenerated TypeScript declarations, REPL data) was inspected and left untouched.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

This PR was produced by an automated commit-review routine run with Claude Code: AI agents reviewed the last 24 hours of commits merged to develop, and the retained fixes were applied and committed by Claude Code. All findings were independently re-verified against the repository before inclusion.

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/dfirst-index-less-than	$\\color{green}372/372$ $\\color{green}+100.00\\%$	$\\color{green}19/19$ $\\color{green}+100.00\\%$	$\\color{green}4/4$ $\\color{green}+100.00\\%$	$\\color{green}372/372$ $\\color{green}+100.00\\%$
blas/ext/base/ndarray/gxdy	$\\color{green}111/111$ $\\color{green}+100.00\\%$	$\\color{green}3/3$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}111/111$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.