[Bug]: "Open in VS Code" Replaces the Current VS Code Window Instead of Opening a New One #34449

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/desktop

Steps to reproduce

1. Open any folder in VS Code (project A).
2. In T3 Code, open a thread for a different project (project B).
3. In the chat header, click "Open in VS Code".

Expected behavior

Project B opens in a new VS Code window, and project A's window stays as it was.

Actual behavior

Project B opens in project A's window and replaces it.

T3 runs code <project path> without --new-window, so VS Code picks the window:

• t3code/packages/contracts/src/editor.ts

  Lines 29 to 35 in 3ed5fb2

  	{
  	id: "vscode",
  	label: "VS Code",
  	commands: ["code"],
  	launchStyle: "goto",
  	remoteScheme: "vscode",
  	},

• t3code/apps/server/src/process/externalLauncher.ts

  Line 492 in 3ed5fb2

  args: [...baseArgs, ...resolveCommandEditorArgs(editorDef, input.cwd)],

Impact

Major degradation or frequent failure

Version or commit

v0.1.9

Environment

Desktop app on Linux Mint

Logs or stack traces

Screenshots, recordings, or supporting files

No response

Workaround

Open a new VS Code window first, or open the folder from VS Code yourself. However, this doesn't always work because t3.code sometimes overwrites the wrong window, which is extremely frustrating.