Let admins hide the Proxmox-link card per server

Not every registered server is a Proxmox VM/LXC -- bare-metal boxes
and other hosts had no reason to show a "link to Proxmox" option, but
it appeared unconditionally on every server's detail page.

New hideProxmoxLink column on servers (default false, so existing
behavior is unchanged until someone opts in). A "Not a VM? Hide this"
link in the card's header sets it; once hidden, a small "+ Show
Proxmox link options" link takes its place so it's still reachable,
not buried in a settings form. The card always shows regardless of
this flag once a server IS actually linked, so unlinking never becomes
unreachable by hiding the card out from under an active link.

Verified against a temp SQLite DB with real migrations: a new server
defaults to false, and toggling true/false both persist correctly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/api/client.ts

@@ -220,6 +220,7 @@ export interface ServerRecord {
   proxmoxNode: string | null;
   proxmoxGuestType: "qemu" | "lxc" | null;
   proxmoxVmid: number | null;
+  hideProxmoxLink: boolean;
 }
 
 export interface ServerHardware {
@@ -271,6 +272,7 @@ export interface ServerUpdateInput {
   proxmoxNode?: string | null;
   proxmoxGuestType?: "qemu" | "lxc" | null;
   proxmoxVmid?: number | null;
+  hideProxmoxLink?: boolean;
 }
 
 export type ScheduleType = "cron" | "systemd_timer" | "docker" | "backup" | "update" | "n8n_workflow" | "manual";

web/src/pages/ServerDetail.tsx

@@ -175,6 +175,15 @@ export default function ServerDetail({ user }: { user: CurrentUser }) {
     }
   }
 
+  async function toggleHideProxmoxLink(hide: boolean) {
+    try {
+      await api.servers.update(serverId, { hideProxmoxLink: hide });
+      await loadDetail();
+    } catch (err) {
+      setLinkError(err instanceof Error ? err.message : String(err));
+    }
+  }
+
   function openAddTask() {
     setEditingTask(null);
     setTaskForm({ ...emptyTaskForm });
@@ -397,10 +406,17 @@ export default function ServerDetail({ user }: { user: CurrentUser }) {
         </div>
       </div>
 
-      {isAdmin && (
+      {isAdmin && (server.proxmoxIntegrationId || !server.hideProxmoxLink) ? (
         <div className="card mb-3">
           <div className="card-header">
             <h3 className="card-title">Proxmox link</h3>
+            {!server.proxmoxIntegrationId && (
+              <div className="card-actions">
+                <button className="btn btn-link btn-sm p-0" onClick={() => toggleHideProxmoxLink(true)}>
+                  Not a VM? Hide this
+                </button>
+              </div>
+            )}
           </div>
           <div className="card-body">
             {server.proxmoxIntegrationId ? (
@@ -465,6 +481,14 @@ export default function ServerDetail({ user }: { user: CurrentUser }) {
             )}
           </div>
         </div>
+      ) : (
+        isAdmin && (
+          <div className="mb-3">
+            <button className="btn btn-link btn-sm p-0" onClick={() => toggleHideProxmoxLink(false)}>
+              + Show Proxmox link options
+            </button>
+          </div>
+        )
       )}
 
       <div className="row row-cards mb-3">