add commands system

src/cmd/ping.ts

@@ -0,0 +1,7 @@
+import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js"
+
+export const data = new SlashCommandBuilder().setName("ping").setDescription("Replies with Pong!")
+
+export const exec = async (interaction: ChatInputCommandInteraction) => {
+	await interaction.reply("Pong!")
+}