News hub: add working pagination that respects the type filter

Client-side paginator (9 per page) reusing the site's pagination styling; page numbers with dots for long lists, Previous/Next with disabled states, resets to page 1 on filter change and hides when a single page.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

css/pages/_news.css

@@ -94,6 +94,15 @@
 .newshub-card h3 a:hover { color: #2D738C; }
 .newshub-excerpt { margin: 0; font-size: 14px; line-height: 22px; color: #667085; }
 
+/* Pagination reuses the shared .pagination look; reset button chrome */
+.newshub-pagination { margin-top: 44px; }
+.newshub-pagination .pagination-arrow,
+.newshub-pagination .page-number {
+    background: transparent;
+    border: none;
+    font-family: inherit;
+}
+
 @media (max-width: 768px) {
     .newshub-hero { padding: 92px 20px 32px; }
     .newshub-hero h1 { font-size: 30px; }