show client username, check whether credential exists before requesting confirmation from frontend

src/views/Approve.svelte

@@ -7,6 +7,7 @@
     import ShowResponse from './approve/ShowResponse.svelte';
     import Unlock from './Unlock.svelte';
 
+    console.log($appState.currentRequest);
 
     // Extra 50ms so the window can finish disappearing before the redraw
     const rehideDelay = Math.min(5000, $appState.config.rehide_ms + 100);

src/views/approve/CollectResponse.svelte

@@ -14,7 +14,7 @@
     // Extract executable name from full path
     const client = $appState.currentRequest.client;
     const m = client.exe?.match(/\/([^/]+?$)|\\([^\\]+?$)/);
-    const appName = m[1] || m[2];
+    const appName = m ? m[1] || m[2] : '';
 
     const dispatch = createEventDispatcher();
 
@@ -61,6 +61,8 @@
         <code class="">{@html client.exe ? breakPath(client.exe) : 'Unknown'}</code>
         <div class="text-right">PID:</div>
         <code>{client.pid}</code>
+        <div class="text-right">User:</div>
+        <code>{client.username ?? 'Unknown'}</code>
     </div>
 </div>