Allow New Folder / New Project from Add Project picker

[Invictine]

Problem

The Add project picker can only select an existing folder. There is no option to create a project — no New Folder / New Project action. To start something new you must leave T3 Code, create the folder in Explorer/Finder, then come back and add it.

Proposal

1. Add a New Folder button in the picker toolbar (next to Add, Open in Explorer).
2. Inline name input -> creates the folder, navigates into/selects it so Add picks it up immediately.
3. Smallest scope: empty folder only. No scaffolding, no git init yet.
4. Follow-up (optional): Create new project vs Add existing folder as two explicit entry points, plus templates later.

Why it matters

New-project flow is currently split across two apps. VS Code / Finder / Explorer all allow creation inline — users expect it here too.

Related

• [Bug]: macOS add-project flow forces folder picker and prevents manual path entry / viewing hidden folders #1312 (add-project flow) — closed
• [Feature]: Support full folder management and drag-and-drop folder import #6138 (full folder management + drag-drop) — open, broader; this is the smallest standalone slice
• Companion idea: disambiguate Add button label + Will add: <path> preview (filing separately).

Happy to help test. Labels: enhancement, ux.

[Invictine]

Fixed in my fork: Invictine/t3code branch feat/add-picker-new-folder-action (https://github.com/Invictine/t3code/tree/feat/add-picker-new-folder-action).

What changed (web, CommandPalette browse mode):

• While the typed path is a pending new folder (the state where the submit button reads Create & Add), the footer now shows an explicit New folder action next to Open in .... Clicking it submits the same path, which the server creates on add (createWorkspaceRootIfMissing), so creation is discoverable before the results list empties out. Hidden during clone flows, where Create & Clone already owns that meaning.
• No new RPC or schema: reuses the existing create-on-add path. Mobile uses a plain path-input submit so it is unaffected.

Verified: web tsgo --noEmit clean, vp lint clean (2 pre-existing warnings elsewhere), existing CommandPalette.logic.test.ts suite green. Happy to open an upstream PR if maintainers want it.