Windows: 0.5.22 desktop shows ERR_FILE_NOT_FOUND on launch — clean reinstall reproduces, 0.5.20 works

Environment

Windows 11
Buzz Desktop 0.5.22 (Buzz_0.5.22_x64-setup_alpha-unsigned.exe)
Installed via auto-update from 0.5.20, then reproduced with clean reinstall from versioned release asset

Steps to reproduce

Install Buzz_0.5.22_x64-setup_alpha-unsigned.exe
Launch Buzz Desktop
App window opens and immediately shows Microsoft Edge "File not found / ERR_FILE_NOT_FOUND" error page

Expected behavior
App loads normally

Additional context

Uninstalling 0.5.22 and installing 0.5.20 resolves the issue
WebView2 cache cleared before testing clean reinstall — did not help
Windows Defender shows no detections on any Buzz binary

That's everything the maintainers need to reproduce and fix it.

Start by reproducing the launch failure with Buzz_0.5.22_x64-setup_alpha-unsigned.exe on Windows 11, then compare the 0.5.22 and 0.5.20 release assets and startup behavior. Done means a clean 0.5.22 installation opens the app normally instead of showing Microsoft Edge's ERR_FILE_NOT_FOUND page.

Written by the indexing model from the issue text.