Rebuilt changelog data from manifest JSON files to fix garbled Polish
characters. Converted changelog.php from static HTML to PHP script that
filters entries by instance version (?ver= parameter).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replaces the manual ZIP packaging workflow with an automated build script.
UpdateRepository now supports both manifest JSON format (new) and legacy
_sql.txt/_files.txt format (fallback), enabling a smooth transition for
existing client instances.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>