test: update tests in number/uint64/ctor

[impawstarlight]

Resolves none.

Description

What is the purpose of this pull request?

This pull request:

• Tightens unit tests by adding explicit word checks.
• Updates JSDoc annotations with specialized types like integer and uinteger32 wherever applicable.
• Fixes benchmark labels with correct colon notation.

Related Issues

Does this pull request have any related issues?

No.

Questions

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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?

• 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

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N/A.

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Coverage Report

Package	Statements	Branches	Functions	Lines
number/uint64/ctor	$\\color{red}585/645$ $\\color{green}+90.70\\%$	$\\color{red}49/52$ $\\color{green}+94.23\\%$	$\\color{red}9/11$ $\\color{green}+81.82\\%$	$\\color{red}585/645$ $\\color{green}+90.70\\%$

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