main.spec's --clean flag wipes dist/ at the start of main.exe build,
which deleted dist/updater.exe before it could be embedded as data
(v2.2.2 main.exe shipped without embedded updater).
Fix: release.ps1 copies dist/updater.exe to build/staging/ after
the updater build, and main.spec datas references that staged path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
b91b229731