[ptr727]

Summary

Promotes the follow-up from the 2026-10-23 404 log pass.

• #489 redirects /news-sitemap.xml, the old platform's news sitemap that GPTBot and Applebot still poll daily, to /sitemap.xml through a @news_sitemap class of its own in the Caddyfile. The redirect contract grows to 956 URLs, the sampler classes the path and renders /sitemap.xml as a fixed destination, and OPERATIONS.md records that a routerless https 404 landing beside 502s on a served hostname is the edge restarting and needs no action.

The Dependabot action bumps on develop already match main, so the tree diff is this one change.

Release

#489 changes deploy/Caddyfile and checks/redirect-urls.txt, so a release and deploy follow the merge. That covers the GitHub release, the VPS production deploy, and the local production mirror. The change passed the full live check on the local staging mirror (1294 URLs), and three local strict review passes, the last clean.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 49.70%. Comparing base (00d0c4a) to head (1861c43).
⚠️ Report is 138 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #490   +/-   ##
=======================================
  Coverage   49.70%   49.70%           
=======================================
  Files          10       10           
  Lines        3058     3058           
=======================================
  Hits         1520     1520           
  Misses       1538     1538           

Flag	Coverage Δ
python-3.13	49.70% <ø> (ø)

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[Copilot]

🟡 Changes recommended

The stated sitemap-only scope does not cover the workflow pin updates and Pillow bump, whose verification impact must be addressed.

2 open issues

• Align PR scope with dependency and workflow updates · New
• Align promotion scope and description with unrelated dependency changes · New

What changed in this PR

This pull request adds a permanent redirect from /news-sitemap.xml to /sitemap.xml, updates its redirect contract and checks, and also changes reusable workflow pins and the Pillow dependency.

Changes:

• Adds and documents the legacy news sitemap redirect.
• Updates redirect sampling, tests, contract counts, and operational guidance.
• Updates four workflow references and the pinned Pillow version.
• The description and verification scope should be aligned with these additional changes, including the Pillow redaction-hash impact.

File	Description
scripts/​requirements.txt	Bumps the pinned Pillow dependency.
OPERATIONS.md	Documents sitemap sampling and routerless HTTPS 404 behavior.
deploy/​README.md	Updates redirect counts, classes, and sampled destinations.
deploy/​Caddyfile	Adds the /news-sitemap.xml to /sitemap.xml redirect.
checks/​tests/​test_check_live_urls_sample.py	Updates the expected redirect-class count.
checks/​redirect-urls.txt	Adds the legacy sitemap URL to the redirect contract.
checks/​README.md	Documents the expanded contract and sitemap redirect.
checks/​check-live-urls.sh	Classifies the new redirect and samples its destination.
.github/​workflows/​test-pull-request.yml	Updates the reusable validation workflow pin.
.github/​workflows/​publish-release.yml	Updates reusable release and validation workflow pins.
.github/​workflows/​merge-bot-pull-request.yml	Updates the reusable merge-bot workflow pin.
.github/​workflows/​deploy-site.yml	Updates reusable validation and deployment workflow pins.

_{Review effort: Lite}