test: migrate stats/base/dists/logistic/median to ULP-based assertions

[Planeshifter]

Resolves #{{TODO: add issue number}}.

Description

What is the purpose of this pull request?

This pull request:

• migrates stats/base/dists/logistic/median tests (test/test.js) from an EPS-based tolerance comparison to isAlmostSameValue ULP-based assertions, using a single named constant MAX_ULP.
• tightens MAX_ULP to the measured minimum: starting from 64, the full fixture set passes at 0 ULP (exact), so the constant is set to 0. The suite was run repeatedly at the final value with identical, passing results.
• leaves test/test.native.js unchanged, as it already uses exact comparisons.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: Migrate math/base/special packages from relative tolerance testing to ULP difference testing (tracking issue) #11352

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

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This PR was written primarily by Claude Code as an automated routine.

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🤖 Generated with Claude Code

https://claude.ai/code/session_01D5XYK6zMpPkYFZvhJtQJhc

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/logistic/median	$\\color{green}175/175$ $\\color{green}+100.00\\%$	$\\color{green}9/9$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}175/175$ $\\color{green}+100.00\\%$

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

[stdlib-bot]

Thank you for working on this pull request. However, we cannot accept your contribution as the issue this pull request seeks to resolve has already been addressed in a different pull request or commit.

Thank you again for your interest in stdlib, and we look forward to reviewing your future contributions.