Add Discord.js bot base with prefix commands and Winston logging

Co-authored-by: yhqe <139268606+yhqe@users.noreply.github.com>

src/handlers/commandHandler.js

@@ -0,0 +1,51 @@
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const logger = require('../utils/logger');
+
+/**
+ * Loads all command files from src/commands and registers them on the client.
+ * Each command file must export: { name, description, aliases?, usage?, execute }
+ *
+ * @param {import('discord.js').Client} client
+ */
+function loadCommands(client) {
+  const commandsPath = path.join(__dirname, '..', 'commands');
+  const commandFiles = fs
+    .readdirSync(commandsPath)
+    .filter((file) => file.endsWith('.js'));
+
+  let loaded = 0;
+
+  for (const file of commandFiles) {
+    try {
+      const command = require(path.join(commandsPath, file));
+
+      if (!command.name || typeof command.execute !== 'function') {
+        logger.warn(
+          `[CommandHandler] Skipping ${file}: missing "name" or "execute".`,
+        );
+        continue;
+      }
+
+      client.commands.set(command.name.toLowerCase(), command);
+
+      // Register aliases if provided
+      if (Array.isArray(command.aliases)) {
+        for (const alias of command.aliases) {
+          client.commands.set(alias.toLowerCase(), command);
+        }
+      }
+
+      logger.debug(`[CommandHandler] Loaded command: ${command.name}`);
+      loaded++;
+    } catch (err) {
+      logger.error(`[CommandHandler] Failed to load ${file}:`, err);
+    }
+  }
+
+  logger.info(`[CommandHandler] ${loaded} command(s) loaded.`);
+}
+
+module.exports = { loadCommands };