fix: 增加密码策略最小长度验证

src/modules/system/service/sys_user.go

@@ -287,6 +287,11 @@ func (s SysUser) ValidatePasswordPolicy(password string, errLang string) (bool,
 		"uppercase":    policy.Uppercase,
 		"lowercase":    policy.Lowercase,
 	})
+
+	if len(password) < policy.MinLength {
+		return false, errMsg
+	}
+
 	specialChars := len(regexp.MustCompile(`[!@#$%^&*(),.?":{}|<>]`).FindAllString(password, -1))
 	if specialChars < policy.SpecialChars {
 		return false, errMsg