Nick SzaunigandClaude Sonnet 5
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Backend business-rule guards (inactive apiary blocking colony create/move, active colonies blocking apiary deactivation, negative quantity on IN/OUT stock movements, unavailable queen blocking colony assignment, inactive colony blocking split/merge/move) threw English, UUID-laden exception text that the frontend either discarded in favor of a generic message or - in colony-actions.tsx's move/split/merge/ assign-queen dialogs - didn't handle at all, so the guard fired with zero visible feedback. Translated the messages to plain German and wired the affected mutations to display them, so a beekeeper sees the actual reason a save was rejected instead of silence or "failed". Co-Authored-By: Claude Sonnet 5 <[email protected]>