Chat im Ticketsystem: Messenger unter Kunden, Reiter Chat auf der Kundenseite

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/pages/CustomerDetailPage.jsx

@@ -13,6 +13,7 @@ import { useWebsiteProjects } from '../hooks/useWebsiteProjects'
 import { customerTabs, resolveCustomerTab } from '../lib/customerTabs'
 import { customerStage, isArchived, isInvoiceReady, setCustomerArchived, upgradeToCustomer } from '../lib/leads'
 import CustomerViewLog from '../components/customer/CustomerViewLog'
+import ChatThread from '../components/chat/ChatThread'
 import KundenansichtButton from '../components/customer/KundenansichtButton'
 import { getCustomerPortalStatus } from '../lib/teamApi'
 import { formatLastLogin } from '../lib/lastLogin'
@@ -104,6 +105,7 @@ export default function CustomerDetailPage() {
       {activeTab === 'tickets' && <CustomerTickets customerId={customer.$id} />}
       {activeTab === 'invoices' && <CustomerInvoices customer={customer} onShowOverview={() => setTab('overview')} />}
       {activeTab === 'projects' && <CustomerProjects customerId={customer.$id} />}
+      {activeTab === 'chat' && <Card><ChatThread customerId={customer.$id} customerName={customer.name} /></Card>}
       {activeTab === 'protokoll' && <CustomerViewLog customerId={customer.$id} />}
     </div>
   )