Converted Koenig DOM cleaner to TypeScript

[EvanHahn]

no ref

This change should have no user impact. It converts the cleanDOM function to TypeScript. It also had some type errors (using nodes instead of elements), which this fixes.

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ℹ️ Recent review info

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Run ID: 9fc82401-53ca-44ec-8e25-598a623f98eb

📥 Commits

Reviewing files that changed from the base of the PR and between 590f4f9 and e29b6da.

📒 Files selected for processing (2)

• ghost/core/core/server/services/koenig/render-utils/clean-dom.js
• ghost/core/core/server/services/koenig/render-utils/clean-dom.ts

💤 Files with no reviewable changes (1)

• ghost/core/core/server/services/koenig/render-utils/clean-dom.js

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Walkthrough

This PR migrates the cleanDOM utility function from CommonJS JavaScript to TypeScript. The function removes DOM elements whose tag names are not in an allowed list, while re-parenting their child nodes into the parent element. The new TypeScript implementation adds type safety with Element and ReadonlyArray<string> parameters while preserving the original recursive traversal and node-splicing logic.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately and concisely describes the main change: converting the cleanDOM function from JavaScript to TypeScript.
Description check	✅ Passed	The description is directly related to the changeset, explaining the conversion to TypeScript and fixes to type errors.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch clean-dom-typescriptify

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Actionable comments posted: 0