feat: add C implementation for blas/ext/base/ndarray/dsome

[ujjwalv01]

Resolves a part of #14819

Description

What is the purpose of this pull request?

This pull request:

• adds a native C implementation for testing whether a one-dimensional double-precision floating-point ndarray contains at least k truthy elements (dsome).
• updates the test suite (test.js, test.main.js, test.native.js) and benchmarks to cover and utilize the new native C addon.
• updates the k zero-dimensional ndarray to use an int32 data type rather than generic throughout the package, as a generic ndarray is not backed by an ArrayBuffer and thus cannot be passed to stdlib_ndarray_napi_addon_arguments.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: add C implementations for blas/ext/base/ndarray packages #14819

Questions

Any questions for reviewers of this pull request?

No.

Other

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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?

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• 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

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I used AI assistance for test/benchmark generation and documentation.

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Coverage Report

Package	Statements	Branches	Functions	Lines
blas/ext/base/ndarray/dsome	$\\color{green}198/198$ $\\color{green}+100.00\\%$	$\\color{green}7/7$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}198/198$ $\\color{green}+100.00\\%$

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