feat: adding build date to the templates

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing and Code of Conduct guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
feat: adding build date to the templates

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a new feature to display the last modification date on generated pages. By adding a lastModified property to core data structures and populating it from relevant sources, users can now see when content was last updated. This enhancement improves transparency and can be beneficial for content freshness and SEO.

Highlights

• New lastModified property: Introduced a lastModified string property to DoculaChangelogEntry, DoculaData, and DoculaDocument types to store the last modification date of content.
• Date Population Logic: Implemented logic to populate the lastModified property for documents and changelog entries, deriving it from file system modification times or GitHub release dates, formatted as YYYY-MM-DD.
• Footer Display: Added a conditional display in the modern theme's footer to show the lastModified date if available for the current page.
• Styling for Dates: Included new CSS rules to style the lastModified date displayed in the footer.
• Enhanced Test Coverage: Updated existing tests and added new dedicated test cases to ensure the lastModified property is correctly set and formatted across various content types.

Changelog

• src/builder.ts
  • Added lastModified property to DoculaChangelogEntry, DoculaData, and DoculaDocument interfaces.
  • Implemented logic to set doculaData.lastModified for pages without specific source files.
  • Updated parseChangelogEntry to include lastModified from file modification time or release date.
  • Updated parseDocumentData to include lastModified from file modification time.
• templates/modern/css/styles.css
  • Added .footer__updated CSS class for styling the last modified date in the footer.
• templates/modern/includes/footer.hbs
  • Added a Handlebars conditional to display the lastModified date in the footer if present.
• test/builder.test.ts
  • Updated numerous existing test expectations to include the new lastModified property.
  • Added new test suite for lastModified field, verifying its presence and YYYY-MM-DD format for documents, changelog entries, and GitHub releases.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (c97da55) to head (31a2e18).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #352   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            7         7           
  Lines         1575      1576    +1     
  Branches       460       460           
=========================================
+ Hits          1575      1576    +1     

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[gemini-code-assist]

Code Review

This pull request adds a lastModified date to various data types and templates, which will be displayed in the footer. The implementation correctly sources the modification date from file metadata for documents and changelog entries, and from the release's publication date for GitHub releases. For pages without a direct source file, it defaults to the build date. The changes are well-tested. I've identified a couple of opportunities to improve performance by avoiding redundant file system calls.

[chatgpt-codex-connector]

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Reviewed commit: 791dbf9c63

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