feat: enviar al grupo si está activo; si no, al creador

Co-authored-by: aider (openrouter/openai/gpt-5) <aider@aider.chat>

src/services/command.ts

@@ -158,8 +158,11 @@ export class CommandService {
       (dueDate ? ` (vence ${dueDate})` : '') +
       (assignedList ? ` — asignados: ${assignedList}` : '');
 
+    // Enviar al grupo si está activo; si no, al creador (DM)
+    const recipient = groupIdToUse || createdBy;
+
     return [{
-      recipient: createdBy,
+      recipient,
       message: resp,
       mentions: mentionsForSending.length > 0 ? mentionsForSending : undefined
     }];