Add Windows Player support and related files

- New windows/ directory with build scripts, specs, and configuration
- Windows-specific requirements (requirements_win.txt)
- Launch and runtime scripts for Windows (run_win.py, launch_player.bat)
- PyInstaller build configuration (build.spec)
- Updated .gitignore to exclude windows/venv312/
- Updated config and source files for Windows compatibility
- Moved working_files to proper directory

windows/test_import_fix.py

@@ -0,0 +1,39 @@
+"""Test that setting env vars before importing main.py fixes the crash."""
+import os
+import sys
+
+# This is the KEY fix: set Windows env vars BEFORE main.py is imported
+os.environ['SDL_VIDEODRIVER'] = 'windows'
+os.environ['SDL_AUDIODRIVER'] = 'directsound'
+os.environ['KIVY_WINDOW'] = 'sdl2'
+# Use 'angle_sdl2' on Windows for better DirectX compatibility
+os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'
+# Let Kivy auto-detect input providers on Windows
+os.environ['KIVY_INPUTPROVIDERS'] = ''
+os.environ['KIVY_VIDEO'] = 'ffpyplayer'
+os.environ['KIVY_AUDIO'] = 'ffpyplayer'
+os.environ['FFPYPLAYER_CODECS'] = 'h264,h265,vp9,vp8'
+os.environ['SDL_VIDEO_ALLOW_SCREENSAVER'] = '0'
+
+# Add src to path
+sys.path.insert(0, r'C:\Users\Dell-PC\Desktop\Kiwy-Signage\src')
+
+print("=" * 60)
+print("Testing main.py import with Windows env vars...")
+print("=" * 60)
+
+try:
+    import main
+    print("SUCCESS: main.py imported without crashing!")
+    print(f"  SDL_VIDEODRIVER = {os.environ.get('SDL_VIDEODRIVER')}")
+    print(f"  KIVY_WINDOW = {os.environ.get('KIVY_WINDOW')}")
+    print(f"  KIVY_GL_BACKEND = {os.environ.get('KIVY_GL_BACKEND')}")
+    print(f"  KIVY_INPUTPROVIDERS = {os.environ.get('KIVY_INPUTPROVIDERS')}")
+except SystemExit as e:
+    print(f"FAILED: SystemExit({e}) - Kivy window provider still not loading")
+    sys.exit(1)
+except Exception as e:
+    print(f"FAILED with exception: {e}")
+    import traceback
+    traceback.print_exc()
+    sys.exit(1)