Improve RetroAchievements Matching for Archived/Compressed Games

LaunchBox currently has partial support for archived games during RetroAchievements scans. .7z archives are already handled by temporarily extracting the archive and attempting to hash a game file from inside it.

However, this same scan-time handling does not appear to apply consistently to other archive formats, such as .zip and .rar. As a result, games in those archive formats may fail to match during a RetroAchievements scan, even though the emulator can identify them correctly once the game is launched.

The request is to expand LaunchBox’s RetroAchievements scan support so archived games are handled consistently across supported archive formats:

• Already supported: .7z archives are temporarily extracted during the RetroAchievements scan.

• Not fully supported: .zip and .rar archives do not appear to receive the same scan-time extraction and matching behavior.

• Remaining gap: some archive layouts may still fail if LaunchBox does not select the same game file that the emulator uses.

Ideally, LaunchBox would use the same general approach for all supported archive formats: temporarily extract the archive during the RetroAchievements scan, identify the correct game file inside, hash that file for RetroAchievements matching, and then clean up the temporary files.

This would let users keep games compressed while still allowing LaunchBox to display and track RetroAchievements data reliably.