CMake Debugger - Feature Request - Hover on locals

### Brief Issue Summary

It would be great when using the [CMake Debugger](https://devblogs.microsoft.com/cppblog/introducing-cmake-debugger-in-vs-code-debug-your-cmake-scripts-using-open-source-cmake-debugger/) to be able to hover over locals to view their value.

### CMake Tools Diagnostics

_No response_

### Debug Log

_No response_

### Additional Information

Right now, you have to copy the variable name, search it in the debug variables panel, and click filter.

Being able to hover directly over the file would save time.

Review the CMake Debugger integration and the existing debug variables panel to understand how local values are exposed. Trace how source-file hover information is handled, then verify that hovering over a local displays its value without requiring manual searching in the debug variables panel.

Written by the indexing model from the issue text.