/**
 * module: flow-engine —— 唯一出口。只做 re-export,不写逻辑(编码规范 §10.1)。
 */
export type {
  AdvanceOutcome,
  FailureAction,
  FlowEngineService,
  FlowIssue,
  FlowModel,
  FlowPosition,
  FlowStep,
  NextAction,
  StepRuntime,
  StepState,
} from './contract.ts';
export { FlowDeclarationInvalidError } from './contract.ts';

export type {
  CardGateway,
  Clock,
  FlowStateStore,
  IdGenerator,
  ListenerRegistrar,
  LlmStepGateway,
  MemoryRecorder,
  PredicateEvaluator,
  TaskContext,
  TaskDataGateway,
  ToolStepInvoker,
} from './port.ts';

export type { FlowRunnerDeps } from './internal/usecase/flow-runner.ts';
export { createFlowRunner } from './internal/usecase/flow-runner.ts';

export {
  checkDeclaration,
  failureAction,
  initialPosition,
  lastStepIsAcceptance,
  markStep,
  nextAction,
  parallelGroupComplete,
  STEP_STATES,
} from './internal/domain/step-sequence.ts';

export { createFlowStateStore } from './internal/adapter/flow-state-store.ts';
export { flowStateTable } from './internal/adapter/flow-state-schema.ts';