THESIS: A winter museum fieldbook for deciding and moving together. OWN-WORLD: frost, blue ink, source-led photos and time rails. STORY: choose, book, then follow an editable day. FIRST VIEWPORT: next decision, present time, one action. FORM: museum fieldbook, candidate4,seed852c402b. FINISH: unreviewed and undocumented is unfinished; this build ends with the finish review, the verdict, DESIGN.md, and every shipping raster carrying its provenance