From e743e6795b1a38f79263f5f091db84952dec4f75 Mon Sep 17 00:00:00 2001
From: duffyduck <info@hacker-net.de>
Date: Fri, 17 Jul 2026 13:54:35 +0200
Subject: [PATCH] Vertrag-Zugangsdaten: Externtab-Link zu Kunden-Adressen
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Icon neben "Portal Benutzername" öffnet die Stressfrei-/Corporate-
Adressverwaltung des Kunden in neuem Tab, ohne das Vertragsformular
zu verlassen.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 frontend/src/pages/contracts/ContractForm.tsx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/frontend/src/pages/contracts/ContractForm.tsx b/frontend/src/pages/contracts/ContractForm.tsx
index a20dfbdd..34a6fca5 100644
--- a/frontend/src/pages/contracts/ContractForm.tsx
+++ b/frontend/src/pages/contracts/ContractForm.tsx
@@ -1086,6 +1086,18 @@ export default function ContractForm() {
                   <label className="flex items-center gap-2 mb-2 text-sm font-medium text-gray-700">
                     <span>Portal Benutzername</span>
                     {copyValue && <CopyButton value={copyValue} title={`Benutzername "${copyValue}" in Zwischenablage kopieren`} />}
+                    {customerId && (
+                      <a
+                        href={`/customers/${customerId}?tab=stressfrei`}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        title={`${customerEmailLabel} Adresse beim Kunden anlegen (neuer Tab)`}
+                        aria-label={`${customerEmailLabel} Adresse beim Kunden anlegen (neuer Tab)`}
+                        className="text-gray-400 hover:text-blue-600 p-0.5 rounded"
+                      >
+                        <ExternalLink className="w-3.5 h-3.5" />
+                      </a>
+                    )}
                   </label>
                 );
               })()}