fix: remove outdated entry from jieba dictionary

- Added entries to .gitignore for temporary test files.
- Included a message to display MSVC value during build.
- Added UTF-8 compile option for MSVC in unittest CMakeLists.

- Removed conditional check for MSVC when adding test commands.
- Ensured that test commands are always added regardless of the compiler.

- Added configuration for test paths in CMake to simplify file references.
- Updated load_test.cpp and various unit tests to use defined path macros for dictionary and test data files.
- Introduced test_paths.h.in to manage directory paths consistently across tests.

…tests

- Removed unused Jieba test and associated includes from load_test.cpp.
- Simplified main function to focus on essential operations.
- Ensured consistent exit handling by returning EXIT_SUCCESS.

…st configuration

- Added include directories for the current binary and test directories to improve test file accessibility.
- Ensured proper configuration for test paths in the build process.

…ptions

- Eliminated the default installation prefix condition to streamline the configuration.
- Simplified the test build logic by ensuring tests are enabled only for top-level projects.
- Cleaned up redundant code for better readability and maintainability.