História revízii

Autor SHA1 Správa Dátum
  b 6b4397d2e2 fix: gofmt, ErrConflict error code, ErrInvalidState as func 1 mesiac pred
  b 6a6e5442cd fix: remove unused CancelOrderRequest struct 1 mesiac pred
  b c9c9456595 feat: add Order model, status constants, and AppError 1 mesiac pred