added install script for agent

changed backend to agent

frontend/src/components/Nodes.jsx

@@ -72,7 +72,7 @@ export function Nodes({ nodes, onChanged }) {
     <section className="space-y-5">
       <div className="border-b border-zinc-800 pb-5">
         <h1 className="text-2xl font-semibold text-zinc-100">Nodes</h1>
-        <p className="mt-2 max-w-3xl text-sm leading-6 text-zinc-500">Register Incus backend agents by URL and token.</p>
+        <p className="mt-2 max-w-3xl text-sm leading-6 text-zinc-500">Register Incus node agents by URL and token.</p>
       </div>
 
       {error ? <Notice tone="bad" text={error} /> : null}

frontend/src/components/Scheduler.jsx

@@ -60,7 +60,7 @@ export function Scheduler({ onChanged, schedules, vms }) {
       <div className="border-b border-zinc-800 pb-5">
         <h1 className="text-2xl font-semibold text-zinc-100">Scheduler</h1>
         <p className="mt-2 max-w-3xl text-sm leading-6 text-zinc-500">
-          Configure automatic backups per VM. Schedules are stored on the backend and run while the backend service is active.
+          Configure automatic backups per VM. Schedules are stored in management and run while the management service is active.
         </p>
       </div>
 

frontend/src/components/Settings.jsx

@@ -45,7 +45,7 @@ export function Settings({ nodes, onChanged }) {
       const result = await api.put(`/settings/${encodeURIComponent(nodeId)}`, { values });
       setFields(result.data.fields || []);
       setValues(Object.fromEntries((result.data.fields || []).map((field) => [field.key, field.value || ''])));
-      setMessage('Settings saved. Running jobs use the updated values; a changed PORT still needs a backend restart.');
+      setMessage('Settings saved. Running jobs use the updated values; a changed PORT still needs an agent restart.');
       await onChanged?.();
     } catch (requestError) {
       setError(errorMessage(requestError));