feat: add buy me a coffee command(打钱)

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

@@ -26,13 +26,12 @@ class HelpCommand : BaseCommand() {
         if (args.isEmpty()) {
             val node = NodeMessageChain.Builder()
             val msg = MessageChain.Builder()
-            commands.sortedBy { it::class.simpleName }.forEach {
+            commands.sortedBy { it::class.simpleName }.toMutableList().forEach {
                 val description = if (!it::class.hasAnnotation<CommandDescription>()) "暂无描述"
                 else it::class.findAnnotation<CommandDescription>()?.description!!
                 val commandName = it::class.simpleName?.replace("Command", "")!!
                 val commandNames = it.commandNames.joinToString(",")
-                msg.addText("[$commandName] [$description] 命令: $commandNames")
-                    .addNewLine()
+                msg.addText("[$commandName] [$description] 命令: $commandNames").addNewLine()
             }
             msg.addText("共计${commands.size}条命令")
             node.addMessageChain(msg.build(), configManager.selfId)

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

@@ -0,0 +1,31 @@
+/*
+ * Copyright © 2024 RTAkland
+ * Author: RTAkland
+ * Date: 2024/10/7
+ */
+
+
+package cn.rtast.fancybot.commands
+
+import cn.rtast.fancybot.ASSETS_BASE_URL
+import cn.rtast.fancybot.annotations.CommandDescription
+import cn.rtast.fancybot.util.str.encodeToBase64
+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.OneBotListener
+import java.net.URI
+
+@CommandDescription("给我打钱!")
+class SupportMeCommand : BaseCommand() {
+    override val commandNames = listOf("打钱", "给我打钱")
+
+    override suspend fun executeGroup(listener: OneBotListener, message: GroupMessage, args: List<String>) {
+        val image = URI("$ASSETS_BASE_URL/images/048cc8af57f19850ca176f29e50b6215.png")
+            .toURL().readBytes().encodeToBase64()
+        val msg = MessageChain.Builder()
+            .addImage(image, true)
+            .build()
+        message.reply(msg)
+    }
+}