Prepare requests with captured conversation history

internal/usecase/runner.go

@@ -79,6 +79,8 @@ type preparationState struct {
 type preparedOperation struct {
 	run        *domain.PreparedRun
 	validation validate.PreparedValidation
+	capture    bool
+	parent     *domain.Exchange
 }
 
 func NewRunner(
@@ -399,7 +401,7 @@ func (r *Runner) completePreparation(
 	if err != nil {
 		return nil, err
 	}
-	return &preparedOperation{run: prepared, validation: validationPlan}, nil
+	return &preparedOperation{run: prepared, validation: validationPlan, capture: req.CaptureExchange, parent: req.ContinueFrom}, nil
 }
 
 func (r *Runner) prepareValidation(
@@ -473,11 +475,15 @@ func (r *Runner) completePreparationWithStructuredOutput(
 		effectivePrompt.SessionID = state.directSessionID
 	}
 	effectivePrompt.Messages = domain.ConcatRenderedMessages(renderedPrompt.Messages, req.AppendedMessages)
+	if req.ContinueFrom != nil {
+		effectivePrompt.Messages = domain.ConcatRenderedMessages(req.ContinueFrom.Messages(), effectivePrompt.Messages)
+	}
 
 	end := time.Now().UTC()
 	effectiveModel := state.effectiveModel
 	effectiveModel.APIKey = ""
 	return &domain.PreparedRun{
+		ParentRunID:          req.ContinueFrom.RunID(),
 		PromptID:             state.definition.ID,
 		PromptHash:           state.promptDefinitionHash,
 		SelectedProfileID:    state.selectedProfileID,