feat: T6 wave 2 – medicine book, document rights, label particulars, herd events

- Veterinary medicine catalogue, lots and append-only movement ledger
  (rest always computed; corrections as counter-bookings; inactive
  medicines take no new stock; unit must match on lot moves).
- Documents of medicine lots, authority notices and restrictions need the
  domain right on top of documents:* (403 before any lookup).
- Label particulars: pure checkLabel with six mandatory gaps and four
  warnings, AFM font metrics, Berlin-day dates, geometric reading order
  for split addresses, new master-data fields with row-locked updates.
- Herd events ColonyCreated, ColonyMoved, ApiaryChanged and
  TskReferenceDayReached (ids only, never forwarded to webhooks); CSV
  import emits ColonyCreated with audit.
- ARCHITECTURE.md §12 Compliance (T6), Annahmen 59–70.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Backend/src/honey-batches/honey-plausibility.ts

@@ -1,3 +1,4 @@
+import { roundToThousandths } from '../common/quantity';
 import { formatNumberDe } from '../suggestions/texts/format-number';
 import {
   WARNING_SEVERITY,
@@ -25,9 +26,7 @@ export function sharedHoneyType(
 }
 
 /** kg on a gram grid, so sums of floats compare and print cleanly. */
-export function roundKg(value: number): number {
-  return Math.round(value * 1000) / 1000;
-}
+export const roundKg = roundToThousandths;
 
 /**
  * The extraction (Schleuderung) against the net weight of its harvests