Fix "filename, directory name, or volume label syntax is incorrect" on CMD/Terminal open

[Copilot]

When opening a folder in CMD or the default terminal on Windows, an error banner appeared because the directory path was embedded inside a double-quoted shell string (cd /d "...") passed through Node.js's execFile. Node.js escapes inner double-quotes as \", but cmd.exe doesn't treat \" as an escaped quote — it closes the quoted segment early, garbling the path.

Changes

• openInDefaultTerminal (Windows) / openInCmd: Replace the cd /d "..." approach with start's native /D flag to set the working directory directly.

// Before — embedded quotes get mangled by Node.js→cmd.exe escaping
execFile("cmd.exe", ["/c", "start", exe, "/k", `cd /d "${directory}"`]);

// After — directory is a discrete arg; Node.js quotes it cleanly
execFile("cmd.exe", ["/c", "start", "/D", directory, exe]);

Passing directory as its own array element lets Node.js quote it correctly without any embedded-quote ambiguity, and start /D natively handles the working directory for the spawned process.

Original prompt

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This section details on the original issue you should resolve

<issue_title>The filename, directory name, or volume label syntax is incorrect.</issue_title>
<issue_description>When opening in CMD or Terminal, I get the following error:

The filename, directory name, or volume label syntax is incorrect.

The terminal still opens, but this is displayed at the top, which it shouldn't.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes The filename, directory name, or volume label syntax is incorrect. #4

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