- Garden and plant dialogs keep centimeters as the source of truth (LengthField in lib/units.ts): a no-change Save no longer rewrites 900 cm as 899.922 or a 45 cm spacing as 44.958, bumping versions and writing bogus history entries on the way. - The UI stamps every date with the browser's local day (lib/dates.ts). Journal notes already did; plop placement, fill and removal now do too, so a 9 pm placement isn't "planted tomorrow". The fill endpoint gained an optional plantedAt; API and agent callers still default to UTC today. - Removing an object that holds plants asks first and says how many go with it. An empty one still goes straight away (one Undo restores it). - The expanded plant card's action row wraps instead of clipping "Delete". - Monogram lettering switches to a dark ink on pale marker colors (garlic, cabbage, marigold) instead of near-white on near-white. - Copy-as-plan proposes the next free year and warns when the typed name already exists, so two gardens can't both read as "the 2027 plan". - Plan cards show the base name with a "2027 plan" tag, so the year — the point of the name — survives truncation. - A rejected model spec now says which model and why: a wrapped ErrInvalidInput's reason reaches the client as the 400's message, and the Settings field shows it inline instead of toasting "invalid input". Also defuses a clock bomb in TestRemainingReturnsWhenAPlantingIsRemoved, which only passed while the real date was before 2026-08-01. Co-Authored-By: Claude Fable 5 <[email protected]>