Module flow 

Structs

DecisionCase

Conditional branch case.

DecisionStep

Decision / branching step.

FlowPolicy

Flow-wide policies (placeholder for future expansion).

MessageStep

Single message/prompt step inside a flow.

QAFlowSpec

QAFlow: directed graph of steps executed inside the wizard.

QuestionStep

Step that asks a question.

Enums

CardMode

Card/render modes for message steps.

StepSpec

A single wire-up step in QA flows.

Type Aliases

StepId

Identifier for QA flow steps.