Merge #188: feat(blog): add UDP tracker floating IP setup article

4f31d17 feat(blog): add UDP tracker floating IP setup article (Jose Celano)

Pull request description:

  ## Summary
  - add a new blog post: /blog/setup-udp-tracker-behind-floating-ip
  - include detailed Hetzner/Ubuntu guidance for running a UDP tracker behind floating IPs
  - document routing, Docker IPv6, SNAT, and verification steps
  - add source references and related-reading links
  - add SEO-friendly cover image and update generated blog metadata

  ## Validation
  - npm run check (passes; existing warnings only in an older post)
  - article route served with 200 in dev server during review

ACKs for top commit:
  josecelano:
    ACK 4f31d17

Tree-SHA512: 09e34fdab60d32a9c3fa8f934aa634af6ea6e47ae3c92890553b4dfde8956048c5ae741df6e9b35052db989a249770eeb8f3208824dc9db7e0134173fab07426

Author: josecelano

src/routes/blog/setup-udp-tracker-behind-floating-ip/+page.server.ts

@@ -0,0 +1,14 @@
+import { getMetadata } from '$lib/data/metadata';
+import type { PageServerLoad } from './$types';
+
+export const load: PageServerLoad = async ({ url }) => {
+	const slug = url.pathname.split('/').filter(Boolean).pop();
+	if (!slug) throw new Error('Slug could not be determined.');
+
+	const metadata = await getMetadata();
+	const currentPost = metadata.find((post) => post.slug === slug);
+
+	if (!currentPost) throw new Error(`Post not found: ${slug}`);
+
+	return { currentPost, allPosts: metadata };
+};