diff --git a/backend/application/base/appinfra/app_infra.go b/backend/application/base/appinfra/app_infra.go
index 4cb3f073..d516d4d0 100644
--- a/backend/application/base/appinfra/app_infra.go
+++ b/backend/application/base/appinfra/app_infra.go
@@ -89,44 +89,44 @@ func Init(ctx context.Context) (*AppDependencies, error) {
 
 	deps.DB, err = mysql.New()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init db failed, err=%w", err)
 	}
 
 	deps.CacheCli = redis.New()
 
 	deps.IDGenSVC, err = idgen.New(deps.CacheCli)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init id gen svc failed, err=%w", err)
 	}
 
 	deps.ESClient, err = es.New()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init es client failed, err=%w", err)
 	}
 
 	deps.ImageXClient, err = initImageX(ctx)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init imagex client failed, err=%w", err)
 	}
 
 	deps.TOSClient, err = initTOS(ctx)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init tos client failed, err=%w", err)
 	}
 
 	deps.ResourceEventProducer, err = initResourceEventBusProducer()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init resource event bus producer failed, err=%w", err)
 	}
 
 	deps.AppEventProducer, err = initAppEventProducer()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init app event producer failed, err=%w", err)
 	}
 
 	deps.ModelMgr, err = initModelMgr()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init model manager failed, err=%w", err)
 	}
 
 	deps.CodeRunner = initCodeRunner()
@@ -135,19 +135,17 @@ func Init(ctx context.Context) (*AppDependencies, error) {
 
 	imageAnnotationModel, _, err := internal.GetBuiltinChatModel(ctx, "IA_")
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("get builtin chat model failed, err=%w", err)
 	}
 
-	deps.ParserManager = initParserManager(deps.TOSClient, deps.OCR, imageAnnotationModel)
-
-	deps.SearchStoreManagers, err = initSearchStoreManagers(ctx, deps.ESClient)
+	deps.ParserManager, err = initParserManager(deps.TOSClient, deps.OCR, imageAnnotationModel)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init parser manager failed, err=%w", err)
 	}
 
 	deps.SearchStoreManagers, err = initSearchStoreManagers(ctx, deps.ESClient)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("init search store managers failed, err=%w", err)
 	}
 
 	return deps, nil
@@ -267,10 +265,12 @@ func initOCR() ocr.OCR {
 	return ocr
 }
 
-func initParserManager(storage storage.Storage, ocr ocr.OCR, imageAnnotationModel chatmodel.BaseChatModel) parser.Manager {
+func initParserManager(storage storage.Storage, ocr ocr.OCR, imageAnnotationModel chatmodel.BaseChatModel) (parser.Manager, error) {
 	var parserManager parser.Manager
 	parserType := os.Getenv(consts.ParserType)
 	switch parserType {
+	case "builtin", "":
+		parserManager = builtin.NewManager(storage, ocr, imageAnnotationModel)
 	case "paddleocr":
 		url := os.Getenv(consts.PPStructureAPIURL)
 		client := &http.Client{}
@@ -280,10 +280,10 @@ func initParserManager(storage storage.Storage, ocr ocr.OCR, imageAnnotationMode
 		}
 		parserManager = ppstructure.NewManager(apiConfig, ocr, storage, imageAnnotationModel)
 	default:
-		parserManager = builtin.NewManager(storage, ocr, imageAnnotationModel)
+		return nil, fmt.Errorf("parser type %s not supported", parserType)
 	}
 
-	return parserManager
+	return parserManager, nil
 }
 
 func getVectorStore(ctx context.Context) (searchstore.Manager, error) {
diff --git a/backend/go.mod b/backend/go.mod
index c7cfab80..f06a9352 100755
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/apache/rocketmq-client-go/v2 v2.1.3-0.20250427084711-67ec50b93040
 	github.com/apache/thrift v0.21.0
 	github.com/bytedance/mockey v1.2.14
-	github.com/bytedance/sonic v1.13.2
+	github.com/bytedance/sonic v1.14.0
 	github.com/cloudwego/eino v0.3.55
 	github.com/cloudwego/eino-ext/components/model/ark v0.1.15
 	github.com/cloudwego/eino-ext/components/model/claude v0.1.1
@@ -128,7 +128,7 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/bytedance/gopkg v0.1.1
-	github.com/bytedance/sonic/loader v0.2.4 // indirect
+	github.com/bytedance/sonic/loader v0.3.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cilium/ebpf v0.11.0 // indirect
diff --git a/backend/go.sum b/backend/go.sum
index 24568a42..39e3cc96 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -890,11 +890,11 @@ github.com/bytedance/mockey v1.2.14 h1:KZaFgPdiUwW+jOWFieo3Lr7INM1P+6adO3hxZhDsw
 github.com/bytedance/mockey v1.2.14/go.mod h1:1BPHF9sol5R1ud/+0VEHGQq/+i2lN+GTsr3O2Q9IENY=
 github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
 github.com/bytedance/sonic v1.8.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U=
-github.com/bytedance/sonic v1.13.2 h1:8/H1FempDZqC4VqjptGo14QQlJx8VdZJegxs6wwfqpQ=
-github.com/bytedance/sonic v1.13.2/go.mod h1:o68xyaF9u2gvVBuGHPlUVCy+ZfmNNO5ETf1+KgkJhz4=
+github.com/bytedance/sonic v1.14.0 h1:/OfKt8HFw0kh2rj8N0F6C/qPGRESq0BbaNZgcNXXzQQ=
+github.com/bytedance/sonic v1.14.0/go.mod h1:WoEbx8WTcFJfzCe0hbmyTGrfjt8PzNEBdxlNUO24NhA=
 github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
-github.com/bytedance/sonic/loader v0.2.4 h1:ZWCw4stuXUsn1/+zQDqeE7JKP+QO47tz7QCNan80NzY=
-github.com/bytedance/sonic/loader v0.2.4/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI=
+github.com/bytedance/sonic/loader v0.3.0 h1:dskwH8edlzNMctoruo8FPTJDF3vLtDT0sXZwvZJyqeA=
+github.com/bytedance/sonic/loader v0.3.0/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI=
 github.com/casbin/casbin/v2 v2.37.0/go.mod h1:vByNa/Fchek0KZUgG5wEsl7iFsiviAYKRtgrQfcJqHg=
 github.com/cenkalti/backoff/v4 v4.1.1/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
 github.com/cenkalti/backoff/v4 v4.1.2/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=