Citizen Launcher 0.9.2

Maintenance/UX hotfix for the distro-neutral preview.

Removed mandatory PowerShell Core from base Winetricks setup.
Robust RSI Electron Builder latest.yml parsing (path, nested url, version fallback).
DXVK is included in automatic repair.
Responsive GUI with safer grid sizing and readable diagnostics.
Added regression tests for RSI metadata formats and the minimal prefix contract.

0.9.2

fixes Wine Registry: reg: Angegebener Schlüssel nicht zugreifbar oder erstellbar
- registry path now uses valid single separators
- file-association tweak is non-fatal because it is not required by Star Citizen
adds automatic application updates
- Debian package installs a root systemd updater timer
- updater checks GitHub Releases every six hours
- downloads only the expected citizen-launcher_<version>_amd64.deb
- requires and verifies GitHub's SHA-256 asset digest
- verifies package name/version/architecture before APT installation
- generic user installs self-update from the verified tarball
GUI shows whether automatic package updates are active
a running old GUI detects when a newer package was installed and offers a one-click restart
adds a GitHub Actions release workflow and central VERSION file