Fix deploy failure on Hugo latest by overriding incompatible RSS template

[Copilot]

The deploy GitHub Actions job failed during hugo --minify after the workflow picked up Hugo latest (v0.162.1). The failure came from PaperMod’s RSS template referencing site.Author, which is no longer valid in this Hugo version.

• Root cause

  • PaperMod’s themes/PaperMod/layouts/_default/rss.xml accesses site.Author.*, causing:
    • can't evaluate field Author in type interface {}
  • This stops site rendering before deploy.

• Change implemented

  • Added a local template override at layouts/_default/rss.xml (Hugo precedence over theme templates).
  • Kept the upstream RSS structure intact but removed site.Author-dependent tags:
    • <managingEditor>
    • <webMaster>
    • item-level <author>

• Why this shape

  • Avoids modifying vendored theme code/submodule.
  • Keeps workflow configuration unchanged while restoring compatibility with Hugo latest.

<!-- removed Hugo-incompatible author access -->
{{ with site.Author.email }}<author>{{.}}{{ with site.Author.name }} ({{.}}){{end}}</author>{{end}}

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[Copilot]

Pull request overview

This PR addresses a GitHub Actions deploy failure caused by Hugo latest (v0.162.1) no longer supporting site.Author lookups used in PaperMod’s RSS template, by adding a local RSS template override that avoids the incompatible fields while keeping the rest of the theme’s RSS structure.

Changes:

• Added a local layouts/_default/rss.xml template to take precedence over the theme’s RSS template.
• Removed RSS tags that depended on site.Author (channel-level editor/webmaster and item-level author), preventing the Hugo render error.

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