refactor handling of -1 from base to business logic and UI for sizelimit working

modules/base/tool.go

@@ -93,21 +93,18 @@ func CreateTimeLimitCode[T time.Time | string](data string, minutes int, startTi
 
 // FileSize calculates the file size and generate user-friendly string.
 func FileSize(s int64) string {
-	if s == -1 {
-		return "-1"
-	}
 	return humanize.IBytes(uint64(s))
 }
 
-// Get FileSize bytes value from  String.
+// GetFileSize gets FileSize bytes value from String.
 func GetFileSize(s string) (int64, error) {
 	s = strings.TrimSpace(s)
-	if s == "-1" {
-		return -1, nil
+	// default to bytes if no unit is provided
+	if _, err := strconv.ParseInt(s, 10, 64); err == nil {
+		s += " B"
 	}
 	v, err := humanize.ParseBytes(s)
-	iv := int64(v)
-	return iv, err
+	return int64(v), err
 }
 
 // StringsToInt64s converts a slice of string to a slice of int64.