fix: salir button works, cap at 3 buttons, no AI error on unmatched input

- Add 'goodbye' function: resets context + sends farewell with menu hint
- Add safety slice to 3 buttons in buildMenuResponse (WhatsApp hard limit)
- In hybrid mode: when greeting_menu is configured for the user's category,
  use it as fallback instead of escalating to AI — prevents "Lo siento,
  tengo problemas..." from appearing when nothing matches
- Expose buildGreetingMenu() as public for BotRouter access
- DB: fixed submenu_informes and submenu_ciclos from 4→3 buttons,
  added salir flow (goodbye function) and salir/exit commands (company 2)

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

services/BotRouter.php

@@ -108,6 +108,21 @@ class BotRouter
             return $response;
         }
 
+        // Only escalate to AI if bot type truly needs it; avoid AI for menu-driven bots
+        $config   = self::getConfig($company);
+        $permType = (string)($context['permission_type'] ?? 1);
+        $perType  = $config['per_type'][$permType] ?? [];
+
+        // If a greeting_menu is configured for this category, use it as fallback instead of AI
+        $greetingMenuKey = $perType['greeting_menu'] ?? null;
+        if ($greetingMenuKey !== null) {
+            $menus = array_merge($config['menus'] ?? [], $perType['menus'] ?? []);
+            if (isset($menus[$greetingMenuKey])) {
+                self::log("NormalBot no manejó '{$input}' — mostrando menú de categoría en lugar de IA");
+                return NormalBot::buildGreetingMenu($menus[$greetingMenuKey], $context['from'], $company);
+            }
+        }
+
         self::log("NormalBot no manejó '{$input}', escalando a IA");
         return self::runAiBot($company, $context, $input);
     }