fix: stop repeated/duplicate bot responses

Root cause: WpWebhook called OutboundWorker::processQueue() after every
incoming message. BotRouter already sends synchronously in enqueueResponse();
failed messages stayed status='queued'. On the next incoming message
processQueue() would re-send ALL previously-failed messages, causing
the bot to repeat old responses.

- Remove OutboundWorker::processQueue() from WpWebhook::processEvent()
  BotRouter handles immediate delivery; retries should be manual/cron only
- Fix chatSend(): instead of queuing + processQueue() (which drains ALL
  queued messages), call WhatsAppSender::sendText() directly for the
  one message being sent

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

admin/DashboardController.php

@@ -2532,18 +2532,26 @@ HTML;
 
         $db = db();
 
-        // Enqueue the message then process immediately so it's sent to WhatsApp right away
-        $payload = json_encode(['text' => $text]);
-        $db->prepare("INSERT INTO outbound_queue (company_id, to_number, message_type, payload, status, created_at) VALUES (?, ?, 'text', ?, 'queued', NOW())")
-           ->execute([$companyId, $phone, $payload]);
+        // Look up the WhatsApp phone_number_id for this company
+        $company       = CompanyRepository::findById($companyId);
+        $phoneNumberId = $company['phone_number_id'] ?? env('WHATSAPP_PHONE_NUMBER_ID', '');
 
-        // Add to conversations log
-        $msgId = 'admin_' . time() . '_' . $phone;
+        // Send directly — do NOT call processQueue() which would re-send ALL queued/failed messages
+        $sendResult = WhatsAppSender::sendText($phone, $text, $phoneNumberId);
+
+        // Log to conversations regardless of WhatsApp delivery result
+        $msgId  = 'admin_' . time() . '_' . $phone;
+        $status = $sendResult['success'] ? 'sent' : 'failed';
         $db->prepare("INSERT INTO conversations (company_id, message_id, phone_number, direction, message_type, content, created_at) VALUES (?, ?, ?, 'outbound', 'text', ?, NOW())")
            ->execute([$companyId, $msgId, $phone, $text]);
 
-        // Send now — don't wait for the manual queue processor
-        OutboundWorker::processQueue();
+        // Also keep an outbound_queue record for auditing
+        $db->prepare("INSERT INTO outbound_queue (company_id, to_number, message_type, payload, status, wam_id, created_at) VALUES (?, ?, 'text', ?, ?, ?, NOW())")
+           ->execute([$companyId, $phone, json_encode(['text' => $text]), $status, $sendResult['wam_id'] ?? null]);
+
+        if (!$sendResult['success']) {
+            jsonResponse(500, ['error' => $sendResult['error'] ?? 'Error al enviar']);
+        }
 
         jsonResponse(200, ['status' => 'sent']);
     }

admin/v1/WpWebhook.php

@@ -144,13 +144,9 @@ class WpWebhook
 
         // Persistir evento crudo para auditoría
         self::saveRawEvent($raw);
-
-        // Procesar cola outbound inmediatamente para respuestas automáticas
-        try {
-            OutboundWorker::processQueue();
-        } catch (\Throwable $e) {
-            self::log('WARN', 'OutboundWorker falló: ' . $e->getMessage());
-        }
+        // Note: BotRouter already sends synchronously in enqueueResponse().
+        // Running processQueue() here would re-send ALL previously-failed messages
+        // on every incoming webhook, causing duplicate/repeated responses.
     }
 
     private static function resolveCompany(array $payload): void