Add translationKey and French slugs to link FR/EN articles

For all French posts with English counterparts, add translationKey to
both FR and EN versions so the language switcher can link them. Also
give French posts proper French slugs and add aliases to preserve the
old English-slug URLs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

content/fr/post/evaluate-local-ai-with-ease-on-ovhcloud/index.md

@@ -1,6 +1,8 @@
 ---
 title: "Maîtrisez votre IA : explorez l'IA locale grâce à OVH et 1 €"
 date: !!timestamp '2024-09-04 11:12:00'
+slug: evaluer-ia-locale-ovhcloud
+translationKey: evaluate-local-ai-ovhcloud
 image: /post/evaluate-local-ai-with-ease-on-ovhcloud/og.webp
 toc: true
 tags:
@@ -8,6 +10,8 @@ tags:
 - cloud
 - hosting
 - privacy
+aliases:
+- /fr/post/evaluate-local-ai-with-ease-on-ovhcloud
 ---
 
 Les IA génératives répondent aujourd’hui à de nombreux usages, et il serait dommage de ne pas en tirer parti.