docs: improve doctests for ndarray instances in ndarray/every

[AryanSharma48]

Progresses #9329.

Description

What is the purpose of this pull request?

This pull request:

• Updates the JSDoc examples and REPL documentation in @stdlib/ndarray/every to replace verbose .get() and ndarray2array decomposition logic with the more concise nested ndarray instance notation (e.g., // returns <ndarray>[ ... ]).
• Removes the ndarray2array import wherever it was only being used for illustrative doctest values.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: Improve doctests for ndarray instances in documentation examples (tracking issue) #9329

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.

No.

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

If you answered "yes" to using AI assistance, please provide a short disclosure indicating how you used AI assistance. This helps reviewers determine how much scrutiny to apply when reviewing your contribution. Example disclosures: "This PR was written primarily by Claude Code." or "I consulted ChatGPT to understand the codebase, but the proposed changes were fully authored manually by myself.".

I used an AI coding assistant to help locate the specific documentation files within @stdlib/ndarray/every and apply the formatting updates to the // returns annotations. However, I manually reviewed all the modifications to ensure strict adherence to the RFC, specifically making sure no executable console.log() examples were altered.

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@stdlib-js/reviewers

[kgryte]

LGTM

[stdlib-bot]

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[kgryte]

Thank you for your contribution and congratulations on your first PR!

[AryanSharma48]

Thank you @kgryte! Happy to contribute. Looking forward to opening more PRs!