1. improve ycompiler.
2. import class_ana(llvm) for dynamic-cast.
3. re-struct build-system.
4. re-struct ci-system.
5. add some docs.
6. import AI(eg: claude-code, google-cli, qwen-code and so on).
1. improve ycompiler.
2. import class_ana(llvm) for dynamic-cast.
3. re-struct build-system.
4. re-struct ci-system.
5. add some docs.
6. import AI(eg: claude-code, google-cli, qwen-code and so on).