Move the GTK application sources into desktop/.

Co-authored-by: Cursor <cursoragent@cursor.com>

desktop/build-windows.bat

@@ -0,0 +1,100 @@
+@echo off
+setlocal EnableExtensions
+
+REM ---------------------------------------------------------------------------
+REM Native Windows build with MSVC. No MSYS2 or MinGW shell required.
+REM
+REM Requirements:
+REM   * Visual Studio 2019/2022 with the "Desktop development with C++"
+REM     workload installed.
+REM   * A GTK4 build for MSVC, for example the gvsbuild prebuilt package
+REM     unzipped to C:\gtk (see README.md).
+REM
+REM If GTK lives somewhere other than C:\gtk, set GTK_ROOT first, e.g.
+REM     set GTK_ROOT=D:\gtk
+REM ---------------------------------------------------------------------------
+
+if not defined GTK_ROOT set "GTK_ROOT=C:\gtk"
+
+REM --- 1. Locate Visual Studio and enter the 64-bit MSVC environment --------
+set "VSWHERE=%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
+if not exist "%VSWHERE%" (
+    echo [error] vswhere.exe not found.
+    echo         Install Visual Studio with the "Desktop development with C++"
+    echo         workload, then run this script again.
+    exit /b 1
+)
+
+set "VSPATH="
+for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set "VSPATH=%%i"
+if not defined VSPATH (
+    echo [error] No Visual Studio C++ installation found.
+    exit /b 1
+)
+
+call "%VSPATH%\VC\Auxiliary\Build\vcvars64.bat" >nul
+if errorlevel 1 (
+    echo [error] Failed to initialise the MSVC environment.
+    exit /b 1
+)
+
+REM --- 2. Point the build at the GTK4 installation --------------------------
+set "PATH=%GTK_ROOT%\bin;%PATH%"
+set "PKG_CONFIG_PATH=%GTK_ROOT%\lib\pkgconfig;%PKG_CONFIG_PATH%"
+
+set "PKG_CONFIG=pkg-config"
+where pkg-config >nul 2>nul
+if errorlevel 1 (
+    where pkgconf >nul 2>nul
+    if errorlevel 1 (
+        echo [error] pkg-config/pkgconf was not found.
+        echo         Make sure GTK_ROOT points at a GTK4 install that contains
+        echo         bin\pkg-config.exe. Current GTK_ROOT: %GTK_ROOT%
+        exit /b 1
+    )
+    set "PKG_CONFIG=pkgconf"
+)
+
+REM --- 3. Collect the GTK4 flags in MSVC syntax -----------------------------
+set "GTK_CFLAGS="
+set "GTK_LIBS="
+for /f "usebackq delims=" %%c in (`%PKG_CONFIG% --cflags gtk4 --msvc-syntax`) do set "GTK_CFLAGS=%%c"
+for /f "usebackq delims=" %%l in (`%PKG_CONFIG% --libs gtk4 --msvc-syntax`) do set "GTK_LIBS=%%l"
+
+if not defined GTK_CFLAGS (
+    echo [error] pkg-config could not find gtk4.
+    echo         Check that "%PKG_CONFIG_PATH%" contains gtk4.pc.
+    exit /b 1
+)
+
+if not exist "assets\app-icon.ico" (
+    echo [error] assets\app-icon.ico is missing.
+    echo         Generate it with: python scripts\gen-icons.py
+    exit /b 1
+)
+
+REM --- 4. Compile resources + sources ---------------------------------------
+echo Building maturita.exe with MSVC...
+rc /nologo /fo maturita.res maturita.rc
+if errorlevel 1 (
+    echo [error] Resource compile failed.
+    exit /b 1
+)
+
+cl /nologo /O2 /MD /W3 /std:c11 /D_CRT_SECURE_NO_WARNINGS ^
+   %GTK_CFLAGS% *.c maturita.res ^
+   /Fe:maturita.exe ^
+   /link /SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup %GTK_LIBS%
+
+if errorlevel 1 (
+    echo [error] Build failed.
+    exit /b 1
+)
+
+if not exist icons\hicolor\512x512\apps mkdir icons\hicolor\512x512\apps
+copy /Y assets\app-icon.png icons\hicolor\512x512\apps\maturita.png >nul
+
+echo.
+echo Built maturita.exe ^(icon embedded from assets\app-icon.ico^)
+echo Run it from this terminal with:  maturita.exe
+echo Or use run-windows.bat / double-click maturita.exe.