refactor: Extract interaction handling logic into dedicated ComponentInteractionHandler, AutocompleteHandler, and CommandHandler classes.

src/lib/handlers/AutocompleteHandler.ts

@@ -0,0 +1,21 @@
+import { AutocompleteInteraction } from "discord.js";
+import { AuroraClient } from "@/lib/BotClient";
+
+/**
+ * Handles autocomplete interactions for slash commands
+ */
+export class AutocompleteHandler {
+    static async handle(interaction: AutocompleteInteraction): Promise<void> {
+        const command = AuroraClient.commands.get(interaction.commandName);
+
+        if (!command || !command.autocomplete) {
+            return;
+        }
+
+        try {
+            await command.autocomplete(interaction);
+        } catch (error) {
+            console.error(`Error handling autocomplete for ${interaction.commandName}:`, error);
+        }
+    }
+}