PREVIEW badge on cards and a modal note, a Pass filter row (hidden until previews exist), previews superseded by a full image (config_fp/base_fp match) hidden by default, a preview bar with 'Full pass for survivors (N)'. The button asks web/dashboard.js (postMessage) to switch Preview pass off in the matching Config Builder and call app.queuePrompt; a marked stub covers a future run API; fallback is an instructions toast. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>