fix(proxmox): address PR review findings

- Storage: prevent double-slash ID when cluster/resources returns
  shared storage without a node field (e.g. "storage//PBS_TFTSR"
  → "storage/PBS_TFTSR")
- Firewall: add comment explaining why rule_num is omitted from
  add_rule — PVE assigns position (pos) automatically on creation
- Network: replace misleading "implementation pending" toasts with
  an immediate warning; dialog no longer opens since backend commands
  (POST/PUT/DELETE nodes/{node}/network) are not yet implemented
- Backup: same treatment for New Job — warns immediately instead of
  opening a form that silently does nothing
- VMList: add comment explaining handleVMAction receives clusterId
  from props (not a stale closure over state); add inline comment
  clarifying the migration button disabled conditions

src-tauri/src/commands/proxmox.rs

@@ -709,13 +709,13 @@ pub async fn list_proxmox_datastores(
             let storage_name = obj.get("storage").and_then(|v| v.as_str()).unwrap_or("");
             let node_name = obj.get("node").and_then(|v| v.as_str()).unwrap_or("");
 
-            normalized.insert(
-                "id".to_string(),
-                serde_json::Value::String(format!(
-                    "storage/{}/{}",
-                    node_name, storage_name
-                )),
-            );
+            // Avoid double-slash when cluster/resources omits "node" for shared storage
+            let storage_id = if node_name.is_empty() {
+                format!("storage/{}", storage_name)
+            } else {
+                format!("storage/{}/{}", node_name, storage_name)
+            };
+            normalized.insert("id".to_string(), serde_json::Value::String(storage_id));
             normalized.insert(
                 "storage".to_string(),
                 serde_json::Value::String(storage_name.to_string()),

src-tauri/src/proxmox/firewall.rs

@@ -80,6 +80,8 @@ pub async fn list_firewall_rules(
 }
 
 /// Add firewall rule — uses correct PVE API field names (proto, enable, dest).
+/// `rule.rule_num` is intentionally not sent: PVE assigns the position (pos) automatically
+/// on creation. rule_num is only used for update/delete operations on existing rules.
 pub async fn add_rule(
     client: &crate::proxmox::client::ProxmoxClient,
     node: &str,

src/components/Proxmox/VMList.tsx

@@ -122,6 +122,8 @@ export function VMList({
     }));
   }, [rawVms]);
 
+  // clusterId comes from props (not captured via closure over state), so it is always
+  // current when an action fires even if the user switches clusters mid-session.
   const handleVMAction = useCallback(async (vm: VMInfo, action: string) => {
     if (!clusterId) {
       toast.error('No cluster selected');
@@ -746,6 +748,8 @@ function MigrationDialog({
           <Button variant="outline" onClick={onClose}>
             Cancel
           </Button>
+          {/* Disabled when: no target node typed/selected,
+              OR same-cluster migration with no enumerated nodes to choose from */}
           <Button
             onClick={onSubmit}
             disabled={!targetNode || (!isCrossCluster && availableTargets.length === 0)}

src/pages/Proxmox/BackupPage.tsx

@@ -80,26 +80,14 @@ export function ProxmoxBackupPage() {
   }, [selectedClusterId, loadJobs]);
 
   const handleNewJob = () => {
-    setJobName('');
-    setJobNode('');
-    setJobSchedule('');
-    setJobVms('');
-    setShowNewJobDialog(true);
+    toast.warning(
+      'Backup job creation requires additional backend implementation (POST cluster/backup) and is not yet available.',
+    );
   };
 
   const handleSubmitNewJob = async () => {
-    if (!jobName || !jobNode || !jobSchedule) {
-      toast.error('Job name, node, and schedule are required');
-      return;
-    }
-
-    try {
-      toast.info(`Creating backup job ${jobName} - implementation pending`);
-      setShowNewJobDialog(false);
-    } catch (error) {
-      console.error('Failed to create backup job:', error);
-      toast.error(`Failed to create backup job: ${error}`);
-    }
+    toast.warning('Backup job creation is not yet available.');
+    setShowNewJobDialog(false);
   };
 
   if (clusters.length === 0 && !isLoading) {

src/pages/Proxmox/NetworkPage.tsx

@@ -17,7 +17,7 @@ export function ProxmoxNetworkPage() {
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
   const [showAddDialog, setShowAddDialog] = useState(false);
-  const [editingInterface, setEditingInterface] = useState<NetworkInterface | null>(null);
+  const [editingInterface] = useState<NetworkInterface | null>(null);
   
   // Form state
   const [ifaceName, setIfaceName] = useState('');
@@ -52,58 +52,24 @@ export function ProxmoxNetworkPage() {
       .catch(console.error);
   }, [loadInterfaces, nodeId]);
 
+  const NOT_IMPLEMENTED_MSG =
+    'Network interface management requires additional backend implementation (POST/PUT/DELETE nodes/{node}/network) and is not yet available.';
+
   const handleAddInterface = () => {
-    setEditingInterface(null);
-    setIfaceName('');
-    setIfaceType('eth');
-    setAddress('');
-    setNetmask('');
-    setGateway('');
-    setActive(true);
-    setShowAddDialog(true);
+    toast.warning(NOT_IMPLEMENTED_MSG);
   };
 
-  const handleEditInterface = (iface: NetworkInterface) => {
-    setEditingInterface(iface);
-    setIfaceName(iface.iface);
-    setIfaceType(iface.type);
-    setAddress(iface.address || '');
-    setNetmask(iface.netmask || '');
-    setGateway(iface.gateway || '');
-    setActive(iface.active);
-    setShowAddDialog(true);
+  const handleEditInterface = (_iface: NetworkInterface) => {
+    toast.warning(NOT_IMPLEMENTED_MSG);
   };
 
   const handleSubmit = async () => {
-    if (!ifaceName || !ifaceType) {
-      toast.error('Interface name and type are required');
-      return;
-    }
-
-    try {
-      if (editingInterface) {
-        toast.info(`Updating interface ${ifaceName} - implementation pending`);
-      } else {
-        toast.info(`Creating interface ${ifaceName} - implementation pending`);
-      }
-      setShowAddDialog(false);
-    } catch (error) {
-      console.error('Failed to save interface:', error);
-      toast.error(`Failed to save interface: ${error}`);
-    }
+    toast.warning(NOT_IMPLEMENTED_MSG);
+    setShowAddDialog(false);
   };
 
-  const handleDeleteInterface = async (iface: NetworkInterface) => {
-    if (!confirm(`Are you sure you want to delete interface ${iface.iface}?`)) {
-      return;
-    }
-
-    try {
-      toast.info(`Deleting interface ${iface.iface} - implementation pending`);
-    } catch (error) {
-      console.error('Failed to delete interface:', error);
-      toast.error(`Failed to delete interface: ${error}`);
-    }
+  const handleDeleteInterface = async (_iface: NetworkInterface) => {
+    toast.warning(NOT_IMPLEMENTED_MSG);
   };
 
   return (