refactor(knowledge): Move the searchstore manager to app infra (#764)

backend/infra/impl/document/searchstore/vikingdb/vikingdb_manager.go

@@ -65,6 +65,10 @@ type VikingEmbeddingConfig struct {
 	BuiltinEmbedding embedding.Embedder
 }
 
+func NewVikingDBService(host string, region string, ak string, sk string, scheme string) *vikingdb.VikingDBService {
+	return vikingdb.NewVikingDBService(host, region, ak, sk, scheme)
+}
+
 func NewManager(config *ManagerConfig) (searchstore.Manager, error) {
 	if config.Service == nil {
 		return nil, fmt.Errorf("[NewManager] vikingdb service is nil")

backend/infra/impl/embedding/ark/ark.go

@@ -33,6 +33,15 @@ import (
 	"github.com/coze-dev/coze-studio/backend/types/errno"
 )
 
+type EmbeddingConfig = ark.EmbeddingConfig
+
+type APIType = ark.APIType
+
+const (
+	APITypeText               = ark.APITypeText
+	APITypeMultiModal APIType = ark.APITypeMultiModal
+)
+
 func NewArkEmbedder(ctx context.Context, config *ark.EmbeddingConfig, dimensions int64, batchSize int) (contract.Embedder, error) {
 	emb, err := ark.NewEmbedder(ctx, config)
 	if err != nil {