feat: use siliconflow model

api/v1/oss/handler.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 
 	"gitea.com/bitwsd/document_ai/config"
@@ -59,7 +60,7 @@ func GetSignatureURL(ctx *gin.Context) {
 		ctx.JSON(http.StatusOK, common.SuccessResponse(ctx, gin.H{"sign_url": "", "repeat": true, "path": task.FileURL}))
 		return
 	}
-	extend := filepath.Ext(req.FileName)
+	extend := strings.ToLower(filepath.Ext(req.FileName))
 	if extend == "" {
 		ctx.JSON(http.StatusOK, common.ErrorResponse(ctx, common.CodeParamError, "invalid file name"))
 		return