feat(clients): "Needs you" queue for approvals, questions and review-ready results #65

Request

2026-10-31: the owner wants an agent workspace for fast actions, where attention goes only to the high-priority blockers ("set it up for t3code").

State

Built in preview worktree feat/needs-you-inbox (web only):

• a cross-project queue with pins first and requests/failures ahead of review-ready results;
• reuses T3's existing approval, question, reply and snooze controls;
• auto-advances; Reviewed / Later · 1h with Undo.

67 focused tests, web typecheck and lint pass. The rendered flow was never checked, there is no mobile version, and nothing was committed upstream.

Acceptance

• Rendered pass in a real client.
• Decide on mobile parity.
• Ideas discussion before any upstream PR (behavior change).

Related: #54, #55.