merge: 合并 feat/tokentime 到 develop，解决 limiter/scenarioRepo 参数冲突

backend/internal/eino/graph_test.go

@@ -214,7 +214,7 @@ func TestNewHistoryLambda_ReturnsNonNil(t *testing.T) {
 	fetcher := func(ctx context.Context, sessionID string, limit int) ([]models.Message, error) {
 		return nil, nil
 	}
-	lambda := NewHistoryLambda(fetcher, 10)
+	lambda := NewHistoryLambda(fetcher, nil, 10)
 	require.NotNil(t, lambda)
 }