Add full implementation: core engine, UI, build fixes, and compilation

- Implement all core modules: disk I/O, partition tables, filesystem
  formatting, recovery, imaging, diagnostics, security, and maintenance
- Implement all UI tabs with full widget layouts and backend integration
- Fix MSVC compilation: NOMINMAX, WIN32_LEAN_AND_MEAN, missing includes
  (winioctl.h, bcrypt.h, shellapi.h, cwctype), type mismatches, and
  POSIX macro conflicts
- Add Guid implementation (Types.cpp), move DiskAccessMode to Types.h
- Add CMake presets with embedded MSVC/SDK environment for Git Bash builds
- Add build scripts, key generation, icon resources, and windeployqt
- Include pre-built hwdiag library and third-party integration

third_party/hwdiag/build_library.bat

@@ -0,0 +1,48 @@
+@echo off
+REM Build the hwdiag library from source.
+REM This script copies internal sources, builds the library, then cleans up.
+REM The resulting .lib is placed in lib/ and committed to the repo.
+REM
+REM Prerequisites:
+REM   - Qt6 installed and findable by CMake
+REM   - MSVC build tools on PATH (run from Developer Command Prompt)
+REM   - Main project configured at least once (for EmbeddedKey.h)
+
+setlocal
+
+set SCRIPT_DIR=%~dp0
+set INTERNAL=%SCRIPT_DIR%internal
+set SRC_ROOT=%SCRIPT_DIR%..\..\src
+
+echo === Copying internal sources ===
+copy /Y "%SRC_ROOT%\ui\dialogs\AstroChicken.h"    "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\dialogs\AstroChicken.cpp"  "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\dialogs\Vohaul.h"          "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\dialogs\Vohaul.cpp"        "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\dialogs\Arnoid.h"          "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\dialogs\Arnoid.cpp"        "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\tabs\StarGenerator.h"      "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\ui\tabs\StarGenerator.cpp"    "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\core\security\OratDecoder.h"  "%INTERNAL%\" >nul
+copy /Y "%SRC_ROOT%\core\security\OratDecoder.cpp" "%INTERNAL%\" >nul
+
+echo === Building library ===
+cmake -B "%SCRIPT_DIR%build" -S "%SCRIPT_DIR%" -G Ninja
+cmake --build "%SCRIPT_DIR%build" --config Release
+
+if %ERRORLEVEL% NEQ 0 (
+    echo BUILD FAILED
+    goto cleanup
+)
+
+echo === Library built successfully ===
+echo Output: %SCRIPT_DIR%lib\
+
+:cleanup
+echo === Cleaning up internal sources ===
+del /f /q "%INTERNAL%\*.h"   >nul 2>&1
+del /f /q "%INTERNAL%\*.cpp" >nul 2>&1
+rmdir /s /q "%SCRIPT_DIR%build" >nul 2>&1
+
+echo === Done ===
+endlocal