[FEATURE] Fix in built LSPs for Windows

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

/plugin installed official Claude Code LSPs fail on Native Windows install with "-ENOENT" trying to call "uv_spawn" on the wrong file.

Proposed Solution

Literally append ".cmd" to each LSP command if Windows environment detected - confirmed fixed on my side. I see no way to supply and "override" command to the official plugins, I had tried writing my own ".lsp.json" in there and it's ignored. I don't see where they read their cmdline from at all ... perhaps it is bundled into the Claude.exe .js file.

Alternative Solutions

Git clone official plugins, append ".cmd" to all commands, install from this new source.

Priority

High - Significant impact on productivity

Feature Category

Other

Use Case Example

1. Be on Windows
2. Install official LSP plugin
3. Witness "error loading LSP plugin xyz"
4. Check claude --debug log for "-ENOENT" described above

Additional Context

_No response_