Refactor architecture: improve env loading and command workflow

app/src/commands/economy/balance.ts

@@ -1,13 +1,13 @@
-import type { Command } from "@lib/types";
+import { createCommand } from "@lib/utils";
 import { getUserBalance } from "@/modules/economy/economy.service";
 import { SlashCommandBuilder, EmbedBuilder } from "discord.js";
 
-export const balance: Command = {
+export const balance = createCommand({
     data: new SlashCommandBuilder().setName("balance").setDescription("Check your balance"),
     execute: async (interaction) => {
         const balance = await getUserBalance(interaction.user.id) || 0;
         const embed = new EmbedBuilder().setDescription(`Your balance is ${balance}`);
         await interaction.reply({ embeds: [embed] });
     }
-};
+});