Automatic release history

Publish automatic release history and verify managed updates in 1.0.4

Version 1.0.4 adds a release-history list at /site-updates/release-notes. Every managed upgrade publishes a separate post for each new commit, titled with its date and short hash. The first run includes the previous Ubuntu deployment, audio fixes, maintenance page, and managed Node.js upgrade history.

Existing page introductions and edited posts are preserved. Publication is repeatable without duplicate posts, and failed upgrades restore the previous release history with the database backup.

This release also updates the managed Nginx configuration and maintenance HTML with revision markers so the live upgrade can verify deployment-file installation and the branded update page. The maintenance page continues to reconnect automatically when the site is ready.