Rebuild .exe with CEF + win32gui fixes

- Updated build.spec with win32gui/win32con hidden imports
- Updated requirements_win.txt with cefpython3 docs
- Rebuilt .exe at 2026-07-24 14:41 (143 MB with CEF)
- All 12 resources bundled (icons, intro1.mp4)
- development-track.md updated with BUG-007, BUG-008

windows/venv_build/Scripts/activate.bat

@@ -0,0 +1,34 @@
+@echo off
+
+rem This file is UTF-8 encoded, so we need to update the current code page while executing it
+for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (
+    set _OLD_CODEPAGE=%%a
+)
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" 65001 > nul
+)
+
+set "VIRTUAL_ENV=c:\Users\Dell-PC\Desktop\Kiwy-Signage\windows\venv_build"
+
+if not defined PROMPT set PROMPT=$P$G
+
+if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%
+if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%
+
+set _OLD_VIRTUAL_PROMPT=%PROMPT%
+set PROMPT=(venv_build) %PROMPT%
+
+if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%
+set PYTHONHOME=
+
+if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%
+if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%
+
+set "PATH=%VIRTUAL_ENV%\Scripts;%PATH%"
+set "VIRTUAL_ENV_PROMPT=(venv_build) "
+
+:END
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul
+    set _OLD_CODEPAGE=
+)