Feature Request: Add `wsl` / `wsl.exe` command support

Feature Request: RTK support for wsl and wsl.exe commands

Background

Running rtk discover --all on a Windows 11 + WSL2 hybrid environment showed:

These are the most-used unhandled commands by far, with zero RTK coverage.

Use Case

On Windows with WSL2, nearly every Linux tool invocation goes through wsl:

wsl -d Ubuntu -- git status
wsl -d Ubuntu -- npm run build
wsl -d Ubuntu -- python3 script.py

The output is often large (file listings, build logs, test results) — exactly where RTK filtering saves the most tokens.

Proposed Behavior

rtk wsl [args] should:

• Pass the command through to wsl / wsl.exe
• Apply the same output filtering/truncation as other RTK commands
• Optionally detect the inner command (e.g. wsl -- git status → apply git filtering rules)

Environment

• OS: Windows 11 Pro
• RTK version: 0.40.0
• Shell: PowerShell + WSL2 Ubuntu

The issue names no files or tests; start by tracing how RTK dispatches existing command wrappers and applies output filtering. Compare handling of wsl -d Ubuntu -- git status with the existing git filtering rules. Done means both wsl and wsl.exe pass through correctly and their output receives the intended filtering, with coverage in the relevant CLI tests.