fix(cms): remove unpublished content fallbacks

tests/int/press-collection-items.int.spec.ts

@@ -0,0 +1,16 @@
+import { describe, expect, it } from 'vitest'
+
+import { pressEventsFromCms, pressNewsFromCms } from '@/spa/pressCollectionItems'
+import { pressIndexContent } from '@/spa/pressIndexContent'
+
+describe('press collection items', () => {
+  it('does not replace an empty published events collection with demo event rows', () => {
+    expect(
+      pressEventsFromCms([], '/images/event-placeholder.jpg', {}, pressIndexContent.events),
+    ).toEqual([])
+  })
+
+  it('does not replace an empty published posts collection with demo news cards', () => {
+    expect(pressNewsFromCms([], '/images/news-placeholder.jpg', pressIndexContent.news)).toEqual([])
+  })
+})