chore(turbo): pass through PATHEXT

[adammansfield]

What Changed

Add PATHEXT to globalPassThroughEnv in turbo.json.

Why

On Windows with bun dev:desktop or bun start:desktop, Turbo strict mode omits PATHEXT, so terminal-drawer commands cannot resolve executables in PATH without explicit file extensions.

Expected:

echo "$env:PATHEXT"  
# .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL

cd C:\temp
$env:PATH = "C:\temp;$env:PATH"
'@echo hello world' > testshim.cmd  
testshim
# hello world

Actual:
bun dev:desktop

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes -- no UI changes
• I included a video for animation/interaction changes -- no animation changes

Validation

• bun fmt
• bun lint
• bun typecheck
• bun dev:desktop (on Windows)
• bun start:desktop (on Windows)

After fix:
bun dev:desktop

---

Note

Low Risk
Low risk config-only change that affects how Turborepo forwards environment variables, primarily impacting Windows command resolution.

Overview
Adds PATHEXT to Turborepo’s globalPassThroughEnv in turbo.json, ensuring all tasks inherit this variable from the invoking shell (notably fixing Windows executable resolution in strict env mode).

^{Reviewed by Cursor Bugbot for commit 2f36b31. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Pass PATHEXT through to all Turborepo tasks via globalPassThroughEnv

Adds PATHEXT to globalPassThroughEnv in turbo.json so all Turborepo tasks inherit the PATHEXT environment variable from the invoking shell. This is primarily relevant on Windows, where PATHEXT controls which file extensions are treated as executable.

^{Macroscope summarized 2f36b31.}

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[macroscopeapp]

Approvability

Verdict: Approved

Single-line Turborepo configuration change that passes through the Windows PATHEXT environment variable for build compatibility. No runtime or production behavior impact.

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