fix(aria-conditional-attr): add support for radio

[mehm8128]

added support for radio for aria-conditional-attr as well as checkbox.

Closes: #4416

[Copilot]

Pull request overview

Extends the aria-conditional-attr check to also validate aria-checked usage on native input[type="radio"], matching the existing behavior for native checkboxes and addressing #4416.

Changes:

• Added a radio-specific evaluator to flag cases where aria-checked conflicts with a native radio’s checked state.
• Added unit + integration + virtual-rule coverage for the new radio behavior.
• Added a new localized failure message key (fail.radio) for the check.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
lib/checks/aria/aria-conditional-radio-attr-evaluate.js	New evaluator implementing aria-checked consistency checks for native radios.
lib/checks/aria/aria-conditional-attr-evaluate.js	Routes role radio to the new radio evaluator.
lib/checks/aria/aria-conditional-attr.json	Adds the fail.radio message string for the check’s built-in metadata.
locales/_template.json	Adds the fail.radio message key to the locale template.
locales/ja.json	Adds the Japanese translation for the new fail.radio message key.
test/checks/aria/aria-conditional-attr.js	Adds unit tests for native radio scenarios (checked/unchecked + mismatches).
test/integration/virtual-rules/aria-conditional-attr.js	Adds virtual-rule integration coverage for radio pass/fail cases.
test/integration/rules/aria-conditional-attr/aria-conditional-attr.html	Adds radio fixtures for pass/fail coverage.
test/integration/rules/aria-conditional-attr/aria-conditional-attr.json	Updates expected pass/violation node lists to include the new radio fixtures.

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[straker]

Thanks for the pr! Looks great.

Reviewed for security