feat: centralizar CTA de ayuda en command.ts y añadir a DMs

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

src/services/command.ts

@@ -37,6 +37,7 @@ export type CommandOutcome = {
 
 export class CommandService {
 	static dbInstance: Database = db;
+	private static readonly CTA_HELP: string = 'ℹ️ Tus tareas: /t mias · Todas: /t todas · Info: /t info · Web: /t web';
 
 	private static parseNueva(message: string, mentionsNormalized: string[]): {
 		action: string;
@@ -1190,7 +1191,7 @@ export class CommandService {
 		].filter(Boolean);
 		responses.push({
 			recipient: createdBy,
-			message: ackLines.join('\n'),
+			message: [ackLines.join('\n'), '', CommandService.CTA_HELP].join('\n'),
 			mentions: mentionsForSending.length > 0 ? mentionsForSending : undefined
 		});
 
@@ -1206,7 +1207,7 @@ export class CommandService {
 					groupName ? `Grupo: ${groupName}` : null,
 					`- Completar: \`/t x ${createdTask?.display_code}\``,
 					`- Soltar: \`/t soltar ${createdTask?.display_code}\``
-				].filter(Boolean).join('\n'),
+				].filter(Boolean).join('\n') + '\n\n' + CommandService.CTA_HELP,
 				mentions: [creatorJid]
 			});
 		}