Each colony can now hold its hive setup (Ist-Zustand) as validated JSON with an append-only change log: - catalog: hive systems and part types with dimensions, placement rules and state fields; Liebig-Zander 10 seeded with fixed ids (owner's equipment incl. Bausperre, Futterzarge, Nassenheider) - pure domain module (operations, validator, derived facts) with shared JSON fixtures the frontend runs too - API: catalog (hive-systems:manage), setup create/change/history/ state at a day (colonies:read/update), 409 HIVE_CONFLICT with the current state, idempotent writes, HiveChanged event - inspections can carry hive ops saved in the same transaction - backup export/import of the new tables (backup wins per colony) - docs: ARCHITECTURE section 13, Annahmen 95-100 Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>