Restore change reasons in recent feed

frontend-modern/src/components/Infrastructure/ResourceChangeSummary.tsx

@@ -112,6 +112,9 @@ export const ResourceChangeSummary: Component<ResourceChangeSummaryProps> = (pro
                       <Show when={change.actor}>
                         <p class={`mt-1 ${itemText()} text-muted`}>By {change.actor}</p>
                       </Show>
+                      <Show when={change.reason}>
+                        <p class={`mt-1 ${itemText()} text-muted`}>{change.reason}</p>
+                      </Show>
                     </div>
 
                     <div class="flex flex-wrap items-center gap-1.5">

frontend-modern/src/components/Infrastructure/__tests__/ResourceChangeSummary.test.tsx

@@ -28,6 +28,7 @@ describe('ResourceChangeSummary', () => {
             kind: 'restart',
             from: 'running',
             to: 'restarting',
+            reason: 'Restart after maintenance',
             observedAt: '2026-03-18T12:00:00Z',
             sourceType: 'platform_event',
             sourceAdapter: 'docker_adapter',
@@ -51,6 +52,7 @@ describe('ResourceChangeSummary', () => {
       screen.getByRole('link', { name: 'Open related resource vm-200 in Infrastructure' }),
     ).toHaveAttribute('href', '/infrastructure?resource=vm-200');
     expect(screen.getByText('By agent:ops-helper')).toBeInTheDocument();
+    expect(screen.getByText('Restart after maintenance')).toBeInTheDocument();
     expect(screen.queryByRole('link', { name: 'Open resource storage-1 in Infrastructure' })).toBeNull();
   });
 

frontend-modern/src/components/Infrastructure/__tests__/ResourceDetailDrawer.identity-runtime.test.tsx

@@ -354,6 +354,7 @@ describe('ResourceDetailDrawer runtime and identity cards', () => {
     expect(getByText('Latest canonical change')).toBeInTheDocument();
     const latestChangeItem = getByText('Config update: Updated canonical config').closest('li');
     expect(latestChangeItem).not.toBeNull();
+    expect(getByText('Updated canonical config')).toBeInTheDocument();
     expect(latestChangeItem).toHaveTextContent(/just now|m ago|h ago|d ago/);
   });
 });

frontend-modern/src/pages/__tests__/AIIntelligence.test.tsx

@@ -589,6 +589,7 @@ describe('AIIntelligence entitlement gating', () => {
     expect(screen.getByText(/Health A · 91\/100/)).toBeInTheDocument();
     expect(screen.getByText(/Recent changes 1/)).toBeInTheDocument();
     expect(screen.getByText('Config update: Updated guest configuration')).toBeInTheDocument();
+    expect(screen.getByText('Updated guest configuration')).toBeInTheDocument();
     expect(
       screen.getByRole('link', { name: 'Open resource vm-100 in Infrastructure' }),
     ).toHaveAttribute('href', '/infrastructure?resource=vm-100');