Convert importer email template to TypeScript

[EvanHahn]

no ref

This change should have no user impact.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Review profile: CHILL

Plan: Pro

Run ID: e317241b-4678-4d60-ae44-196da1f5abd5

📥 Commits

Reviewing files that changed from the base of the PR and between 2c6439e and 47e8429.

📒 Files selected for processing (2)

• ghost/core/core/server/data/importer/email-template.ts
• ghost/core/core/server/data/importer/import-manager.js

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Walkthrough

This PR modernizes the email-template module by converting it from CommonJS to an ES module with TypeScript typing. The email-template.ts file now exports emailTemplate as a named export with input parameters typed via ReadonlyDeep<EmailTemplateData>, where siteUrl and postsUrl are explicitly typed as URL. The corresponding import in import-manager.js is updated from a default require to named destructuring to match the new export format. The template's conditional logic for rendering "Import unsuccessful" or "View posts" sections remains unchanged.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: converting the importer email template from JavaScript/CommonJS to TypeScript with ES module syntax.
Description check	✅ Passed	The description is related to the changeset, confirming this is a conversion to TypeScript with no user impact, which aligns with the code changes.
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 convert-importer-email-template-to-ts

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Actionable comments posted: 0