Project Group Last Updated Sorting

Optional current-DMG patch for the Projects sidebar.

Upstream applies Last updated to task rows inside each project, but it then reapplies the saved manual project order to the project groups themselves. A complete saved order therefore leaves every project header fixed even when a different project has the newest task.

This feature makes Last updated sort both project groups and their task rows by recency. Priority and Manual order keep upstream's saved project-group ordering behavior.

The feature is disabled by default because it intentionally changes upstream sidebar semantics. Enable it in linux-features/features.json:

{
  "enabled": [
    "project-group-last-updated-sort"
  ]
}

Run the feature tests with:

node --test linux-features/project-group-last-updated-sort/test.js

The patch targets only the current upstream Projects sidebar chunk. Upstream bundle drift leaves the asset unchanged and reports an optional patch warning.