Integrate extraction validation retries

internal/framework/pipeline/runner_extract_handoff_test.go

@@ -3,6 +3,7 @@ package pipeline
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"reflect"
 	"strings"
 	"testing"
@@ -221,8 +222,9 @@ func TestRunnerPromotesOnlyAcceptedExtractRetryWarnings(t *testing.T) {
 			scope = "accepted"
 		}
 		return erasedTypedResult{
-			Value:    typedValueForLane(0, request.Chunk.Index),
-			Warnings: []contracts.Warning{{Scope: scope, ReasonCode: "observed", Message: scope}},
+			Value:          typedValueForLane(0, request.Chunk.Index),
+			Warnings:       []contracts.Warning{{Scope: scope, ReasonCode: "observed", Message: scope}},
+			ModelCandidate: attemptCandidate(t, fmt.Sprintf(`{"items":["%s"]}`, scope)),
 		}, nil
 	})
 	validatorCalls := 0