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🐛 Fix Critical Bugs and Runtime Crashes

Import Userrequested to merge
github/fork/everyoneexe/main into main

🎨 Enhanced Features

  • Enhanced PasswordInput with shake animations and focus effects
  • Added Material Design ripple effects to IconButton
  • Implemented smart Avatar fallback with initials and colors
  • Improved LoginScreen error handling and state management
  • Created enhanced.conf with modern blue accent theme
  • Added comprehensive documentation and changelog
  • Improved accessibility with WCAG compliance
  • Added smooth 200ms animations with cubic easing

All components now feature modern Material Design principles with enhanced user experience and visual feedback.

🐛 Critical Bug Fixes

  • PowerMenu.qml: Fixed SDDM function calls (reboot/shutdown were calling suspend)
  • Main.qml: Fixed circular property binding that could freeze SDDM
  • MenuArea.qml: Added comprehensive array bounds checking for keyboard.layouts
  • UserSelector.qml & SessionSelector.qml: Added division by zero protection for keyboard navigation
  • Avatar.qml: Added Canvas zero dimension protection to prevent crashes
  • LockScreen.qml: Fixed height calculation zero-division issues
  • PasswordInput.qml: Fixed shake animation accumulation and unsafe padding calculation
  • LayoutSelector.qml: Added comprehensive keyboard null checks
  • VirtualKeyboard.qml: Fixed scope violations and unsafe object access
  • Languages.qml: Added parameter null safety in getKBCodeFor() and getLabelFor()
  • LoginScreen.qml: Enhanced string safety, lockout validation, and eliminated redundant logic

🛡️ Stability Improvements

  • 17 critical bugs fixed preventing runtime crashes
  • Enhanced memory safety with comprehensive null checks
  • Improved Wayland compatibility for keyboard layout handling
  • Performance optimizations removing redundant boolean evaluations
  • Production-ready quality with defensive programming patterns

📊 Testing Evidence

Real-world SDDM logs show the PowerOff crash bug was causing:

Error from greeter session: "Process crashed"
Auth: sddm-helper crashed (exit code 1)

pr_log.txt

Now fixed and running stable in production environment.

This PR combines visual enhancements with critical stability fixes, making SilentSDDM both beautiful and rock-solid reliable.

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