[Feature Request] Windows support for /statusline command output format

Bug Description
Claude code command /statusline in windows should produce a PowerShell or a cmd script instead of bash
When running /statusline it produces a bash script. But it fails to run properly, and no status line is shown

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.0.76
• Feedback ID: b7901c5b-751b-4362-9164-e49f5ff7478b

Errors

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