Enhance CMake configuration and CI/CD workflows for improved testing

- Updated CMakeLists.txt to introduce options for enabling experimental tests and minimal CI builds.
- Modified CMakePresets.json to refine test presets, including stable and experimental test configurations.
- Enhanced CI workflows in ci.yml to streamline testing processes, ensuring stable tests are prioritized and experimental tests are run separately.
- Added new documentation files outlining the CI/CD testing strategy and testing categories for better clarity on testing practices.
- Improved test discovery in CMakeLists.txt to simplify labeling and enhance CI efficiency.

src/CMakeLists.txt

@@ -41,7 +41,13 @@ foreach (FILE ${YAZE_RESOURCE_FILES})
   )
 endforeach()
 
-add_subdirectory(lib/nativefiledialog-extended)
+# Conditionally add native file dialog (optional for CI builds)
+if(NOT YAZE_MINIMAL_BUILD)
+  add_subdirectory(lib/nativefiledialog-extended)
+  set(YAZE_HAS_NFD ON)
+else()
+  set(YAZE_HAS_NFD OFF)
+endif()
 
 if (YAZE_BUILD_APP)
   include(app/app.cmake)