Environment launcher

NOTICE: Profile backup format overhaul: Backup files created in older versions are no longer compatible. To restore profiles in this build or any future version, backups must be generated directly from the current build using the new .elbackup format, completely replacing the legacy JSON system. CHANGED: Native UI dialogs: All external helper dialogs (Update, Countdown, Quick Exit, Manual Continue, and Skipped Apps) have been rewritten into native .dll components. They now run directly within the main process instead of spawning separate standalone processes, substantially lowering resource overhead and avoiding false positive detections. Additionally, dialogs can now be freely dragged across the screen, and a new option to reset their positions has been added to the settings. CHANGED: Drag and drop stability: When dragging items in the Profile Editor, all expanded application settings now automatically collapse to prevent layout glitches during reordering. CHANGED: Primary app safety check: Added a toast notification preventing users from disabling the designated Primary App, prompting them to select a different primary application first. CHANGED: Process detachment mechanism: Profile applications are now spawned with detached process hierarchies, decoupling third-party executables from EL’s main tree to prevent aggressive antivirus software from flagging the launcher. CHANGED: Isolated multi-profile monitoring: Launching multiple profiles concurrently no longer interrupts active watchdog sessions. Each profile is now monitored independently from start to finish. CHANGED: Watchdog orphan cleanup: Added an automatic maintenance check on launch that cleans up leftover watchdog session files caused by sudden system restarts or ungraceful terminations. FIXED: Resolved an issue where available update notifications failed to appear in the UI. FIXED: Fixed a bug where disabling the countdown window in the settings had no effect and the dialog continued to show. FIXED: Fixed an issue where the Profile Editor path validation system failed to detect and highlight invalid application paths.