fix(icon): troca BotOff (inexistente no lucide-react) por Bot

BotOff não é exportado pelo lucide-react e gerava "Attempted import error"
no build. O indicador de "bot pausado" no ChatListItem agora usa Bot —
o title e a cor âmbar já comunicam o estado.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

newwhats.clube67.com/newwhats.local/frontend/components/ChatListItem.tsx

@@ -7,7 +7,7 @@ import {
     VolumeX, Star, StarOff, Archive, ArchiveRestore,
     Trash2, MailOpen, Volume2, PinOff,
     Mic, FileText, Video, Image as ImageIcon,
-    AlertCircle, BotOff,
+    AlertCircle, Bot,
 } from 'lucide-react';
 import type { NewWhatsChat, PresenceState } from '../types/inboxTypes';
 import { 
@@ -227,7 +227,7 @@ export default function ChatListItem({
                     <div className="flex items-center gap-2 flex-shrink-0 ml-1">
                         {chat.bot_paused && (
                             <span title="Bot pausado — aguardando atendente">
-                                <BotOff className="w-4 h-4 text-amber-500" />
+                                <Bot className="w-4 h-4 text-amber-500" />
                             </span>
                         )}
                         {isMuted && <VolumeX className="w-4 h-4 text-[#8696a0]" />}