feat: SEO improvements — related content, IndexNow, manifest, llms.txt

- Enable showRelatedContent + showSummary in article config
- Add IndexNow ping step to CI deploy pipeline
- Fix site.webmanifest branding (was Congo, now Internet for Kids)
- Update llms.txt to include French language section

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

static/llms.txt

@@ -15,12 +15,13 @@ This blog covers:
 
 ## Languages
 
-Content is available in English (/en/) and German (/de/).
+Content is available in English (/en/), German (/de/), and French (/fr/).
 
 ## Sections
 
 - /en/ — Articles on child protection and online safety (English)
 - /de/ — Artikel zum Kinderschutz und Online-Sicherheit (Deutsch)
+- /fr/ — Articles sur la protection de l'enfance et la sécurité en ligne (Français)
 - /en/about/ — About this publication
 - /en/tags/ — Browse by topic
 

static/site.webmanifest

@@ -0,0 +1,21 @@
+{
+  "name": "Internet for Kids",
+  "short_name": "IFK",
+  "description": "Expert insights on child protection laws, online safety, and digital family protection worldwide.",
+  "start_url": "/en/",
+  "display": "standalone",
+  "background_color": "#ffffff",
+  "theme_color": "#1a365d",
+  "icons": [
+    {
+      "src": "/android-chrome-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/android-chrome-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}