KI-AGENT: Terminpicker und Dokumentaufruf verbessert

mobile/app/more/customer/[id].tsx

@@ -32,6 +32,7 @@ import {
   uploadCustomerFile,
 } from '@/src/lib/api';
 import { useAuth } from '@/src/providers/auth-provider';
+import { getOpenableFileUrl } from '@/src/lib/file-opening';
 
 const PRIMARY = '#69c350';
 
@@ -276,7 +277,7 @@ export default function CustomerDetailScreen() {
 
   async function onOpenFile(file: ProjectFile) {
     if (!file.url) return;
-    await WebBrowser.openBrowserAsync(file.url, {
+    await WebBrowser.openBrowserAsync(getOpenableFileUrl(file.url), {
       presentationStyle: WebBrowser.WebBrowserPresentationStyle.FORM_SHEET,
       controlsColor: PRIMARY,
       showTitle: true,