修改航线文件重命名报错，增加图片缩略图，完善喊话功能

rain

2024-07-15 e567c76939c6516b4146aa6a554d95c0bcb4f078

 src/main/java/com/dji/sample/component/mqtt/model/TopicConst.java

@@ -34,4 +34,9 @@

    public static final String REGEX_SN = "[A-Za-z0-9]+";

    public static final String DRC = "/drc";

    public static final String UP = "/up";

    public static final String DOWN = "/down";
}