[SAOC 2025] Improve error messages and LSP integration Weekly Update #8

[Iskaban10]

## [SAOC 2025] Improve error messages and LSP integration Weekly 
Update #8

This week, I continued exploring serve-d and code-d and 
investigated the feasibility of importing the dmd frontend into 
serve-d.

I focused on:

- Examining files in workspace-d such as dub.d and 
lintgenerator.d that parse compiler output.

- Currently working on importing the lsp diagnostics from dmd to 
serve-d.