feat: add about command

src/main/kotlin/cn/rtast/fancybot/FancyBot.kt

@@ -149,7 +149,7 @@ val commands = listOf(
     NiuziSignCommand(), MyNiuziCommand(),
     JiJianCommand(), LikeMeCommand(),
     CompilerCommand(), GPTCommand(),
-    GithubUserCommand()
+    GithubUserCommand(), AboutCommand()
 )
 
 suspend fun main() {

src/main/kotlin/cn/rtast/fancybot/commands/AboutCommand.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright © 2024 RTAkland
+ * Author: RTAkland
+ * Date: 2024/9/16
+ */
+
+
+package cn.rtast.fancybot.commands
+
+import cn.rtast.rob.entity.GroupMessage
+import cn.rtast.rob.util.BaseCommand
+import cn.rtast.rob.util.ob.MessageChain
+import cn.rtast.rob.util.ob.OBMessage
+
+class AboutCommand : BaseCommand() {
+    override val commandNames = listOf("/about", "/关于")
+
+    override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
+        val msg = MessageChain.Builder()
+            .addAt(message.sender.userId)
+            .addNewLine()
+            .addText("Bot名称: FancyBot")
+            .addNewLine()
+            .addText("作者: RTAkland")
+            .addNewLine()
+            .addText("联系方式: me@rtast.cn")
+            .addNewLine()
+            .addText("项目地址: https://repo.rtast.cn/RTAkland/FancyBot")
+            .build()
+        listener.sendGroupMessage(message.groupId, msg)
+    }
+}