fix: Make handleTaskCommand async to support await usage

src/bot/commands/task.ts

@@ -14,7 +14,7 @@ function formatTaskList(tasks: any[]) {
   }).join('\n');
 }
 
-export function handleTaskCommand(body: string, sender: string, groupId: string, linkedGroups: Set<string>) {
+export async function handleTaskCommand(body: string, sender: string, groupId: string, linkedGroups: Set<string>) {
   if (groupId && linkedGroups.has(groupId)) {
     if (body.startsWith('/tarea')) {
       const command = body.replace('/tarea', '').trim();