- 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]>
