Initial SvelteKit frontend port of windwiderstand.de

Full parity with Astro site: content rows, post/tag routes, pagination,
event badges + OSM map, comments, Live-Search via /api/search-index,
CMS image proxy, RSS, sitemap.

Deploy: Dockerfile + docker-compose.prod.yml + Gitea Actions workflow
to build + push to git.pm86.de registry and ssh-deploy to Contabo.

src/hooks.server.ts

@@ -0,0 +1,53 @@
+import { getTranslationBundleBySlug } from '$lib/cms';
+import { TRANSLATION_BUNDLE_SLUG } from '$lib/constants';
+import type { Handle } from '@sveltejs/kit';
+
+/**
+ * Page-Routen: kurze Edge-Cache + SWR. Webhook purged App-Cache,
+ * Edge läuft via stale-while-revalidate auf den warmen App-Cache.
+ */
+const PAGE_CACHE_CONTROL =
+  'public, max-age=0, s-maxage=30, stale-while-revalidate=300';
+
+function isCacheablePath(pathname: string): boolean {
+  if (pathname.startsWith('/api/')) return false;
+  if (pathname.startsWith('/cms-images/')) return false;
+  if (pathname.startsWith('/_app/')) return false;
+  return true;
+}
+
+export const handle: Handle = async ({ event, resolve }) => {
+  try {
+    const bundle = await getTranslationBundleBySlug(TRANSLATION_BUNDLE_SLUG, { locale: 'de' });
+    if (bundle?.strings && typeof bundle.strings === 'object') {
+      const normalized: Record<string, string> = {};
+      for (const [key, val] of Object.entries(bundle.strings)) {
+        const v = val as unknown;
+        const str =
+          typeof v === 'string'
+            ? v
+            : typeof v === 'object' && v !== null && 'value' in v
+              ? (v as { value?: unknown }).value
+              : (v as { text?: unknown })?.text ?? (v as { label?: unknown })?.label;
+        if (typeof str === 'string') normalized[key] = str;
+      }
+      event.locals.translations = normalized;
+    } else {
+      event.locals.translations = {};
+    }
+  } catch {
+    event.locals.translations = {};
+  }
+
+  const response = await resolve(event);
+
+  if (
+    event.request.method === 'GET' &&
+    isCacheablePath(event.url.pathname) &&
+    !response.headers.has('cache-control')
+  ) {
+    response.headers.set('cache-control', PAGE_CACHE_CONTROL);
+  }
+
+  return response;
+};