[js][py] Convert getAttribute atom from Closure to TypeScript

[AutomatedTester]

🔗 Related Issues

💥 What does this PR do?

Port the getAttribute WebDriver atom from Google Closure (javascript/webdriver/atoms/attribute.js) to TypeScript following the pattern established for is-displayed in PR #17316.

Changes:

• javascript/atoms/typescript/get-attribute.ts: TypeScript IIFE implementation of the getAttribute atom. Drops IE compatibility (IE_DOC_PRE8/PRE9, getAttributeNode quirks), uses nodeType-based isElement() for cross-realm safety. Preserves all existing behavior: style → cssText, selected/checked state-based, href/src property resolution, spellcheck normalisation, boolean property list, PROPERTY_ALIASES (class→className, readonly→readOnly).
• javascript/atoms/typescript/strip-trailing-semicolon.js: Node script that removes the trailing semicolon tsc adds after the IIFE, so the output can be injected as a JS expression.
• javascript/atoms/typescript/wrap-get-attribute-as-global.js: Node script that wraps the compiled output as window.bot.dom.typescript.getAttribute for use in browser tests.
• javascript/atoms/test/attribute_typescript_test.html: QUnit test page for the TypeScript atom covering named attrs, class, missing attrs, empty string, boolean attrs, selected/checked state, href/src URL resolution, style cssText, spellcheck, case insensitivity, expandos.
• javascript/atoms/BUILD.bazel: Adds js_binary and js_run_binary rules to compile TypeScript → strip semicolon → wrap as global; updates the atoms filegroup to include .ts sources and the generated global.
• javascript/atoms/fragments/BUILD.bazel: Adds copy_file rule get-attribute-typescript exposing the generated JS as a fragment.
• py/BUILD.bazel: Switches the get-attribute copy_file to use //javascript/atoms/fragments:get-attribute-typescript.js instead of the Closure-compiled fragment.

The old Closure get-attribute fragment is kept unchanged so that Ruby, Java, .NET, and JavaScript bindings are not affected.

🔧 Implementation Notes

🤖 AI assistance

• No substantial AI assistance used
• AI assisted (complete below)
  • Tool(s): copilot
  • What was generated:
  • I reviewed all AI output and can explain the change

💡 Additional Considerations

🔄 Types of changes

• New feature (non-breaking change which adds functionality and tests!)

[Copilot]

Pull request overview

Ports the WebDriver getAttribute atom from the Closure-based implementation to a TypeScript IIFE, and wires Bazel + Python to consume the new generated fragment while adding a dedicated QUnit test page for the TS version.

Changes:

• Added javascript/atoms/typescript/get-attribute.ts plus Bazel rules to compile it with tsc and post-process the output for fragment injection and browser-global testing.
• Added small Node utilities to strip the trailing semicolon from the compiled IIFE output and to wrap the compiled atom as window.bot.dom.typescript.getAttribute for browser tests.
• Updated py/BUILD.bazel to use the new TS-generated atom fragment, and added a new QUnit HTML test page for the TS atom.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
javascript/atoms/typescript/get-attribute.ts	New TypeScript implementation of the getAttribute atom as an IIFE returning the callable function.
javascript/atoms/typescript/strip-trailing-semicolon.js	Post-processing tool to make the compiled output usable as a JS expression by removing trailing ;.
javascript/atoms/typescript/wrap-get-attribute-as-global.js	Post-processing tool to expose the compiled atom as a browser global for QUnit HTML test pages.
javascript/atoms/BUILD.bazel	Adds tsc compilation and post-processing pipeline; updates atoms filegroup to include TS sources and the generated global.
javascript/atoms/fragments/BUILD.bazel	Exposes the generated TS fragment via copy_file for consumption by bindings.
javascript/atoms/test/attribute_typescript_test.html	New QUnit test page validating the TypeScript getAttribute atom behavior.
py/BUILD.bazel	Switches Python’s getAttribute.js copy to the new TS fragment output.

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

[Copilot]

$(rootpath typescript/get-attribute.ts) is not a valid Bazel label (missing :), and will cause the js_run_binary action to fail label expansion. Use a proper file label for the TS source (e.g., :typescript/get-attribute.ts, or a fully-qualified label) when passing it to tsc.

Suggested change

	"$(rootpath typescript/get-attribute.ts)",
	"$(rootpath :typescript/get-attribute.ts)",