Dedup VMs across real Proxmox cluster nodes (was listing each VM once per entered host)

src/main.js

@@ -153,7 +153,30 @@ ipcMain.handle('proxmox:login', async (_e, { host, username, password }) => {
     return { success: false, error: attempts[0].error };
   }
 
-  clients = succeeded;
+  // Several hostnames can point at nodes of the SAME real Proxmox cluster
+  // (e.g. Stefan's setup) — in that case /cluster/resources returns the
+  // identical cluster-wide VM list from every one of them, so keeping all
+  // logged-in clients would just show each VM 3x. Detect real cluster
+  // membership and keep only one representative client per cluster.
+  const seenGroups = new Set();
+  const dedupedClients = [];
+  await Promise.all(
+    succeeded.map(async (entry) => {
+      try {
+        entry.clusterId = await entry.client.getClusterId();
+      } catch {
+        entry.clusterId = null;
+      }
+    })
+  );
+  for (const entry of succeeded) {
+    const group = entry.clusterId || `standalone:${entry.host}`;
+    if (seenGroups.has(group)) continue;
+    seenGroups.add(group);
+    dedupedClients.push(entry);
+  }
+
+  clients = dedupedClients;
   createWindow('vms.html', 680, 520, true);
 
   if (failed.length > 0) {