Design Lab Skill This skill implements a complete design exploration workflow: interview, generate variations, collect feedback, refine, preview, and finalize. CRITICAL: Cleanup Behavior All temporary files MUST be deleted when the process ends, whether by: - User confirms final design → cleanup, then generate plan - User aborts/cancels → cleanup immediately, no plan generated Never leave or routes behind. If the user says "cancel", "abort", "stop", or "nevermind" at any point, confirm and then delete all temporary artifacts. --- Phase 0: Preflight Detection Before starting the interview, aut…