fix: fix Chinese filename garbled in zip file list (GBK to UTF-8)

backend/internal/router/admin/versions.go

@@ -12,6 +12,7 @@ import (
 	"strconv"
 	"strings"
 	"time"
+	"unicode/utf8"
 
 	"verification-platform-backend/internal/database"
 	"verification-platform-backend/internal/middleware"
@@ -20,6 +21,7 @@ import (
 	"verification-platform-backend/pkg/response"
 
 	"github.com/gin-gonic/gin"
+	"golang.org/x/text/encoding/simplifiedchinese"
 )
 
 func SetupVersionRoutes(r *gin.RouterGroup) {
@@ -952,11 +954,20 @@ func parseZipFile(zipPath string) ([]VersionFileInfo, error) {
 		rc.Close()
 
 		fileHash := hex.EncodeToString(hash.Sum(nil))
-		fileType := getFileType(f.Name)
+
+		// 修复中文文件名乱码：如果文件名不是有效 UTF-8，尝试 GBK 解码
+		fileName := f.Name
+		if !utf8.ValidString(fileName) {
+			if decoded, err := simplifiedchinese.GBK.NewDecoder().String(fileName); err == nil {
+				fileName = decoded
+			}
+		}
+
+		fileType := getFileType(fileName)
 
 		files = append(files, VersionFileInfo{
-			FilePath: f.Name,
+			FilePath: fileName,
-			FileName: filepath.Base(f.Name),
+			FileName: filepath.Base(fileName),
 			FileSize: int64(f.UncompressedSize64),
 			FileHash: fileHash,
 			FileType: fileType,