[Feature]: Support full folder management and drag-and-drop folder import

[isaachorowitz]

Before submitting

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

Area

apps/desktop

Problem or use case

T3 Code currently makes it difficult to manage folders from within the IDE. In particular, I cannot drag a folder from outside the app, such as from the Desktop or Finder, into the chat/workspace, and there is no straightforward in-app way to delete, rename, move, or otherwise manage folders.

This forces users to leave the IDE or use a separate file manager for basic workspace organization.

Expected behavior

Users should be able to:

• Drag a folder from Finder/Desktop into the chat or workspace to add/open it.
• Rename folders from an in-app folder/project control.
• Delete folders when appropriate, with a clear confirmation and safety warning.
• Move or otherwise organize folders from within the IDE where the operation is supported by the operating system.

The UI should clearly distinguish between removing a folder from T3 Code and deleting the folder from disk.

Smallest useful scope

Start with drag-and-drop folder import plus rename and remove/delete actions in the folder/project context menu. Keep destructive disk deletion behind an explicit confirmation.

Why this matters

Basic folder management is part of the core IDE workflow. Without it, users have to constantly switch between T3 Code and Finder/File Explorer for simple organization tasks.

Contribution

• I would be open to helping implement this.