fix: ensure proxmox nodes are displayed even if cluster endpoints are missing

Fixes #727. Previously, if temperature monitoring was enabled and a node wasn't found in ClusterEndpoints, the entire node processing was skipped. This change ensures we only skip temperature collection.

internal/monitoring/monitor.go

@@ -6165,6 +6165,7 @@ func (m *Monitor) pollPVEInstance(ctx context.Context, instanceName string, clie
 			// Prefer the resolved host for this node, with cluster overrides when available.
 			sshHost := modelNode.Host
 			foundNodeEndpoint := false
+			shouldCollect := true
 
 			if modelNode.IsClusterMember && instanceCfg.IsCluster {
 				// For cluster members, wait until we have validated endpoints
@@ -6175,9 +6176,8 @@ func (m *Monitor) pollPVEInstance(ctx context.Context, instanceName string, clie
 						Str("node", node.Node).
 						Str("instance", instanceCfg.Name).
 						Msg("Skipping temperature collection - cluster endpoints not yet validated")
-					continue
-				}
-
+					shouldCollect = false
+				} else {
 					hasFingerprint := instanceCfg.Fingerprint != ""
 					for _, ep := range instanceCfg.ClusterEndpoints {
 						if strings.EqualFold(ep.NodeName, node.Node) {
@@ -6198,10 +6198,12 @@ func (m *Monitor) pollPVEInstance(ctx context.Context, instanceName string, clie
 							Str("instance", instanceCfg.Name).
 							Int("endpointCount", len(instanceCfg.ClusterEndpoints)).
 							Msg("Skipping temperature collection - node endpoint not found in cluster metadata")
-					continue
+						shouldCollect = false
+					}
 				}
 			}
 
+			if shouldCollect {
 				if strings.TrimSpace(sshHost) == "" {
 					sshHost = node.Node
 				}
@@ -6278,6 +6280,7 @@ func (m *Monitor) pollPVEInstance(ctx context.Context, instanceName string, clie
 						Msg("Temperature data unavailable after collection")
 				}
 			}
+		}
 
 		if m.pollMetrics != nil {
 			nodeNameLabel := strings.TrimSpace(node.Node)