CMake Language Services - cmake-tidy and more..

### Brief Issue Summary

Request from customer to have an AST parser, and cmake-tidy and cmake-format tools to allow functions extractions or advanced refactoring actions in future iterations of CMake language services.

### CMake Tools Diagnostics

_No response_

### Debug Log

_No response_

### Additional Information

_No response_

The issue names no files, tests, or entry points. Start by surveying the existing CMake language services and how they handle parsing and refactoring, then assess the requested AST parser, cmake-tidy, and cmake-format capabilities. Done criteria are not defined, so the scope and expected behavior need clarification before implementation.

Written by the indexing model from the issue text.