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

cmake/GenerateKey.cmake

@@ -0,0 +1,33 @@
+# GenerateKey.cmake — Build-time 1337-bit key generation
+# Compiles and runs the keygen tool to produce:
+#   1. generated/EmbeddedKey.h (compiled into the app)
+#   2. resources/garbage.xtx   (distributed read-only alongside the app)
+
+set(KEYGEN_SOURCE "${CMAKE_SOURCE_DIR}/tools/keygen.cpp")
+set(KEYGEN_BINARY "${CMAKE_BINARY_DIR}/tools/keygen${CMAKE_EXECUTABLE_SUFFIX}")
+set(GENERATED_DIR "${CMAKE_BINARY_DIR}/generated")
+set(GENERATED_KEY_HEADER "${GENERATED_DIR}/EmbeddedKey.h")
+set(GARBAGE_XTX "${CMAKE_SOURCE_DIR}/resources/garbage.xtx")
+
+file(MAKE_DIRECTORY ${GENERATED_DIR})
+file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/tools")
+
+# Step 1: Compile keygen tool (runs on host at configure/build time)
+add_executable(spw_keygen EXCLUDE_FROM_ALL "${KEYGEN_SOURCE}")
+if(WIN32)
+    target_link_libraries(spw_keygen PRIVATE bcrypt)
+endif()
+set_target_properties(spw_keygen PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/tools"
+)
+
+# Step 2: Run keygen to produce header + garbage.xtx
+add_custom_command(
+    OUTPUT "${GENERATED_KEY_HEADER}" "${GARBAGE_XTX}"
+    COMMAND spw_keygen "${GENERATED_KEY_HEADER}" "${GARBAGE_XTX}"
+    DEPENDS spw_keygen "${KEYGEN_SOURCE}"
+    COMMENT "Generating 1337-bit cryptographic key and garbage.xtx..."
+    VERBATIM
+)
+
+add_custom_target(generate_key DEPENDS "${GENERATED_KEY_HEADER}" "${GARBAGE_XTX}")