Automate FReD citation updates from upstream repository

[Copilot]

The FReD citation on the cite_us page was hardcoded and required manual updates. This implements automatic weekly refresh from the canonical source at forrtproject/FReD-data.

Changes

• Python script (scripts/update_fred_citation.py): Fetches citation from upstream, saves as plain text to static/data/fred_citation.txt
• Hugo template (layouts/shortcodes/cite-us.html): Loads citation from text file using readFile instead of hardcoded string; single variable definition eliminates duplication between HTML and JavaScript
• Workflow (.github/workflows/data-processing.yml): New step runs weekly on Sundays or via manual dispatch; citation file committed to build-resources branch

The Hugo template now references the text file directly:

{{/* Load FReD citation from text file or use fallback */}}
{{ $fredCitation := "" }}
{{ $citationFile := "static/data/fred_citation.txt" }}
{{ if fileExists $citationFile }}
    {{ $fredCitation = readFile $citationFile }}
    {{ $fredCitation = trim $fredCitation " \n\r\t" }}
{{ else }}
    {{ $fredCitation = "Wallrich, L.*, & Röseler, L.*, ..." }}
{{ end }}

Both the displayed citation and the copy button use the same variable, ensuring consistency. The implementation uses plain text files for simplicity, avoiding unnecessary JSON parsing overhead.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Cite us: include current FReD citation</issue_title>
<issue_description>On the following page, the FReD citation should be regularly updated
https://forrt.org/about/cite_us/

based on this source:
https://raw.githubusercontent.com/forrtproject/FReD-data/refs/heads/main/output/citation.txt

Maybe we can add that to the data processing action and only run this part once a week or on manual runs</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Cite us: include current FReD citation #606

---

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[LukasWallrich]

@copilot this JSON approach looks very complicated. Can we not just deal with text itself?

[Copilot]

@copilot this JSON approach looks very complicated. Can we not just deal with text itself?

Simplified to use plain text files instead of JSON. The Python script now saves the citation directly as text to static/data/fred_citation.txt, and Hugo reads it with readFile. No JSON parsing needed.

Changed in commit 5c94cf5.

[github-actions]

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👍 All image files/references (if any) are in webp format, in line with our policy.

[LukasWallrich]

✅ Staging Deployment Status

This PR has been successfully deployed to staging as part of an aggregated deployment.

Deployed at: 2026-02-06 13:44:09 UTC
Staging URL: https://staging.forrt.org

The staging site shows the combined state of all compatible open PRs.

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✅ Spell Check Passed

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[github-actions]

✅ Spell Check Passed

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[github-actions]

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[LukasWallrich]

@richarddushime is this good to go?

[github-actions]

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