feat(tickets): Play e Chat atribuem responsavel automaticamente

- Botao Play habilitado mesmo sem responsavel
- Ao clicar Play sem responsavel, atribui usuario logado automaticamente
- Ao iniciar chat ao vivo sem responsavel, atribui usuario logado
- Adiciona mutation fixLegacySessions para corrigir sessoes antigas

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

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

apps/desktop/src/chat/ChatHubWidget.tsx

@@ -118,11 +118,13 @@ export function ChatHubWidget() {
   }
 
   const handleExpand = async () => {
-    setIsMinimized(false)
     try {
       await invoke("set_hub_minimized", { minimized: false })
+      // Aguarda a janela redimensionar antes de atualizar o estado
+      setTimeout(() => setIsMinimized(false), 100)
     } catch (err) {
       console.error("Erro ao expandir hub:", err)
+      setIsMinimized(false) // Fallback
     }
   }
 
@@ -201,7 +203,7 @@ export function ChatHubWidget() {
 
   // Expandido - mostrar lista
   return (
-    <div className="flex h-screen flex-col overflow-hidden rounded-2xl bg-white shadow-xl">
+    <div className="flex h-full flex-col overflow-hidden rounded-2xl bg-white shadow-xl">
       <ChatSessionList
         sessions={sessions}
         onSelectSession={handleSelectSession}