Chart.js v4.4.0
https://www.chartjs.org
License: MIT

Vendored as a single UMD build (js/vendor/chart.umd.js) so Analytics
and Reports charts render fully offline, instead of depending on
cdn.jsdelivr.net being reachable at runtime — consistent with BMS's
offline-first design. Attaches `window.Chart` when loaded via a plain
<script> tag. Used by beat-bms/js/analytics.js and beat-bms/js/pages.js.
