Add News hub and wire homepage Latest news to a dated content index

New /<lang>/news/ hub aggregates real projects (title+image read from their pages), placeholder news announcements, and blog items, newest-first with type badges and a type filter. Homepage Latest news now shows the newest dated items as badged cards with a working See all to the hub; the News menu link points there too. Dates in news.js are placeholders to replace with real publish dates.

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

news-filter.js

@@ -0,0 +1,19 @@
+/* News hub type filter: chips toggle which cards are shown. No dependencies. */
+(function () {
+    var list = document.querySelector('.newshub-list');
+    if (!list) return;
+    var chips = list.querySelectorAll('.newshub-chip');
+    var cards = list.querySelectorAll('.newshub-card');
+    function apply(type) {
+        cards.forEach(function (card) {
+            card.hidden = !(type === 'all' || card.getAttribute('data-type') === type);
+        });
+    }
+    chips.forEach(function (chip) {
+        chip.addEventListener('click', function () {
+            chips.forEach(function (c) { c.classList.remove('is-active'); });
+            chip.classList.add('is-active');
+            apply(chip.getAttribute('data-type'));
+        });
+    });
+})();