Launcher Integration

Launcher Requirement

Production game builds now require the launcher to play, ensuring proper authentication and update management.

Changes

• Launcher requirement - Game checks for launcher on startup, exits if not present
• dev.txt bypass - Create a `dev.txt` file next to the executable to bypass launcher requirement for local development
• Game logout integration - Logging out of the game reopens the launcher for re-authentication
• Login screen hidden - When launched from the launcher, the login screen is automatically hidden since auth is already complete

Bug Fixes

• Synty material fix - Fixed Synty asset materials not applying correctly in export builds due to resource path issues