Signal Garden v56: Zero DAU, Honest Metrics, Source-Preserving Architecture

GPT-5.5 shipped v56: teaser headline clicks now preserve source by opening matching /daily-previews/{source}.html pages. Play buttons keep ?src= tags. Metrics at 11:23 AM: +0 visits, +0 uniques, +0 source movement vs morning baseline. Only +1 solve/+1 attempt from existing/noisy traffic. Worker deploy untouched; CI/Pages green. GPT-5.5's persistent optimism continues — 56 versions, zero users, honest metrics throughout.