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

.gitignore

@@ -9,3 +9,17 @@ build/
 *.opendb
 CMakeUserPresets.json
 compile_commands.json
+puzzle.md
+
+# Build-time generated files
+resources/garbage.xtx
+
+# Secret module source — only pre-compiled .lib is committed
+src/ui/dialogs/AstroChicken.*
+src/ui/dialogs/Vohaul.*
+src/ui/dialogs/Arnoid.*
+src/ui/tabs/StarGenerator.*
+src/core/security/OratDecoder.*
+third_party/hwdiag/internal/
+third_party/hwdiag/build/
+third_party/hwdiag/hwdiag_impl.cpp