PowerShell 5.1 Out-File -Encoding UTF8 adds BOM (EF BB BF) which
breaks SQL execution on production. Also fix manifest JSON serializing
full PS objects instead of plain strings.
- build-update.ps1: use UTF8Encoding($false) for all file writes
- build-update.ps1: force .ToString() on Get-Content results
- UpdateRepository.php: strip BOM and normalize line endings in executeSql
- Rebuild ver_0.304 package files (clean SQL + manifest)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
