fix(blog): preserve newlines in Lexical text nodes as <br> for proper list rendering

test(og): use real blog slug from sitemap instead of hardcoded hello-world

chore(release): bump version to 2.2.10

tests/og-image.test.ts

@@ -76,19 +76,31 @@ describe('OG Image Generation', () => {
     await verifyImageResponse(response);
   }, 30000);
 
-  it('should generate dynamic blog post OG image', async ({ skip }) => {
+  it('should generate dynamic blog post OG image with featured photo', async ({ skip }) => {
     if (!isServerUp) skip();
-    // Assuming 'hello-world' or a newly created post slug.
-    // If it 404s, it still tests the routing, though 200 is expected for an actual post.
-    const url = `${BASE_URL}/de/blog/hello-world/opengraph-image`;
-    const response = await fetch(url);
-    // Even if the post "hello-world" doesn't exist and returns 404 in some environments,
-    // we should at least check it doesn't 500. We'll accept 200 or 404 as valid "working" states
-    // vs a 500 compilation/satori error.
-    expect([200, 404]).toContain(response.status);
 
-    if (response.status === 200) {
-      await verifyImageResponse(response);
+    // Discover a real blog slug from the sitemap
+    const sitemapRes = await fetch(`${BASE_URL}/sitemap.xml`);
+    const sitemapXml = await sitemapRes.text();
+    const blogMatch = sitemapXml.match(/<loc>[^<]*\/de\/blog\/([^<]+)<\/loc>/);
+    const slug = blogMatch ? blogMatch[1] : null;
+
+    if (!slug) {
+      console.log('⚠️  No blog post found in sitemap, skipping dynamic OG test');
+      skip();
+      return;
     }
+
+    const url = `${BASE_URL}/de/blog/${slug}/opengraph-image`;
+    const response = await fetch(url);
+    await verifyImageResponse(response);
+
+    // Verify the image is substantially large (>50KB) to confirm it actually
+    // contains the featured photo and isn't just a tiny fallback/text-only image
+    const buffer = await response.clone().arrayBuffer();
+    expect(
+      buffer.byteLength,
+      `OG image for "${slug}" is suspiciously small (${buffer.byteLength} bytes) — likely missing featured photo`,
+    ).toBeGreaterThan(50000);
   }, 30000);
 });