Add visual debug indicator to chat widget

Shows unread count and sessions count next to the chat button
for debugging purposes.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/desktop/src/components/ChatFloatingWidget.tsx

@@ -192,9 +192,21 @@ export function ChatFloatingWidget({
   const currentSession = sessions.find(s => s.ticketId === selectedTicketId)
 
   // Botao flutuante (fechado)
+  // DEBUG: Log do estado do widget
+  console.log("[ChatFloatingWidget] Estado:", {
+    isOpen,
+    totalUnread,
+    sessionsCount: sessions.length,
+    sessions: sessions.map(s => ({ id: s.sessionId, ticketId: s.ticketId, unread: s.unreadCount }))
+  })
+
   if (!isOpen) {
     return (
       <div className="fixed bottom-4 right-4 z-50">
+        {/* DEBUG: Indicador visual do estado */}
+        <div className="absolute -left-32 bottom-0 rounded bg-yellow-100 p-1 text-[10px] text-yellow-800 shadow">
+          unread: {totalUnread} | sessions: {sessions.length}
+        </div>
         <button
           onClick={onToggle}
           className="relative flex size-14 items-center justify-center rounded-full bg-black text-white shadow-lg transition hover:bg-black/90"