* Feat: Refactoring the API Server module for better layering
Signed-off-by: barnettZQG <barnett.zqg@gmail.com>

* Fix: code style
Signed-off-by: barnettZQG <barnett.zqg@gmail.com>

* Fix: code style
Signed-off-by: barnettZQG <barnett.zqg@gmail.com>

* Fix: fix the lint errors
Signed-off-by: barnettZQG <barnett.zqg@gmail.com>