fix: establece fromMe=false en reacciones y actualiza tests

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

src/services/response-queue.ts

@@ -167,11 +167,12 @@ export const ResponseQueue = {
 			const chatId = String(meta.chatId || '');
 			const messageId = String(meta.messageId || '');
 			const emoji = String(meta.emoji || '');
+			const emojiLabel = emoji === '✅' ? 'check' : (emoji === '🤖' ? 'robot' : (emoji === '⚠️' ? 'warn' : 'other'));
 			if (!chatId || !messageId || !emoji) {
 				return { ok: false, error: 'invalid_reaction_metadata' };
 			}
 			const payload = {
-				key: { remoteJid: chatId, fromMe: true, id: messageId },
+				key: { remoteJid: chatId, fromMe: false, id: messageId },
 				reaction: emoji
 			};
 			try {
@@ -184,13 +185,16 @@ export const ResponseQueue = {
 					const body = await response.text().catch(() => '');
 					const errTxt = body?.slice(0, 200) || `HTTP ${response.status}`;
 					console.warn('Send reaction failed:', { status: response.status, body: errTxt });
+					try { Metrics.inc('reactions_failed_total', 1, { emoji: emojiLabel }); } catch {}
 					return { ok: false, status: response.status, error: errTxt };
 				}
 				console.log(`✅ Sent reaction with payload: ${JSON.stringify(payload)}`);
+				try { Metrics.inc('reactions_sent_total', 1, { emoji: emojiLabel }); } catch {}
 				return { ok: true, status: response.status };
 			} catch (err) {
 				const errMsg = (err instanceof Error ? err.message : String(err));
 				console.error('Network error sending reaction:', errMsg);
+				try { Metrics.inc('reactions_failed_total', 1, { emoji: emojiLabel }); } catch {}
 				return { ok: false, error: errMsg };
 			}
 		}

tests/unit/services/response-queue.reactions.test.ts

@@ -77,6 +77,6 @@ describe('ResponseQueue - jobs de reacción (enqueue + sendOne)', () => {
     expect(captured.url?.includes('/message/sendReaction/instance-1')).toBe(true);
     expect(captured.payload).toBeDefined();
     expect(captured.payload.reaction).toBe('🤖');
-    expect(captured.payload.key).toEqual({ remoteJid: '123@g.us', fromMe: true, id: 'MSG-99' });
+    expect(captured.payload.key).toEqual({ remoteJid: '123@g.us', fromMe: false, id: 'MSG-99' });
   });
 });