feat(ROADMAP): mark Phase 5 as completed and update project state; prepare for Phase 6 planning

.planning/phases/05-nuxt-content-setup-renderer/05-UAT.md

@@ -34,21 +34,19 @@ result: pass
 
 ### 6. Articles bilingues accessibles
 expected: Les articles de test existent pour FR et EN. Naviguer vers `/fr/blog/test-kotlin-syntax` (FR) et `/en/blog/test-kotlin-syntax` (EN) — les deux pages chargent sans 404.
-result: issue
-reported: "both empty page, nav and footer there but no content — Vue warn: Component <Anonymous> is missing template or render function at <RouteProvider key=\"/fr/blog/test-kotlin-syntax\">. <main> SSR renders empty: `<main class=\"flex-1\"><!--[--><!----><!--]--></main>`. Same behavior FR and EN."
-severity: major
+result: pass
+resolved_by: "127db8b — renamed [...slug].vue → [slug].vue (catch-all pattern broken with @nuxtjs/i18n v10 + Nuxt 4 prefix strategy) + literal queryCollection('blog_fr'/'blog_en') branches for static extractor. Verified via curl: FR + EN return 200 with full markdown content rendered in <main>."
 
 ### 7. Collections @nuxt/content configurées
 expected: Le fichier `content.config.ts` définit `blog_fr` et `blog_en`. `queryCollection('blog_fr')` retourne les articles FR. Vérifiable via le bon rendu de `/test` (qui query `blog_fr`).
-result: issue
-reported: "/test donne 404. Route `/test` supprimée/déplacée par commit 7cd1531 'fix(05): update test.vue path to /fr/blog prefix' — donc plus de page showcase standalone, et les routes blog prefixées elles-mêmes sont cassées (cf Test 6)."
-severity: major
+result: pass
+resolved_by: "Fixed alongside Test 6 via 127db8b. `/fr/test` (i18n-prefixed version of test.vue) renders correctly and queries blog_fr. `/test` itself 404s by design under strategy: 'prefix' — all routes must be locale-prefixed. Unprefixed URL redirect to detected locale handled by detectBrowserLanguage.redirectOn: 'no prefix' + i18n.baseUrl."
 
 ## Summary
 
 total: 7
-passed: 5
-issues: 2
+passed: 7
+issues: 0
 pending: 0
 skipped: 0
 blocked: 0
@@ -56,17 +54,35 @@ blocked: 0
 ## Gaps
 
 - truth: "Les articles FR/EN du blog doivent se rendre au chemin `/fr/blog/test-kotlin-syntax` et `/en/blog/test-kotlin-syntax` avec le contenu markdown dans `<main>`."
-  status: failed
+  status: resolved
   reason: "User reported: both empty page, nav and footer there but no content. Vue warn in SSR log: Component <Anonymous> is missing template or render function at <RouteProvider key=\"/fr/blog/test-kotlin-syntax\">. <main class=\"flex-1\"> rendered empty. Non-blocking i18n baseUrl warning also present but unrelated. Same behavior both locales."
   severity: major
   test: 6
-  artifacts: []
+  root_cause: "Catch-all pattern [...slug].vue not registered by @nuxtjs/i18n v10 + Nuxt 4 under strategy: 'prefix' — page component resolved to {} causing the Vue warning. Secondary: queryCollection() with a dynamic variable is not picked up by @nuxt/content's static Vite extractor."
+  resolved_by_commit: "127db8b"
+  artifacts:
+    - path: "app/pages/blog/[slug].vue"
+      issue: "Renamed from [...slug].vue; queryCollection calls replaced with literal branches"
   missing: []
 
-- truth: "La page query `blog_fr` doit être routable (historiquement `/test`, depuis commit 7cd1531 déplacée sous `/fr/blog`) et rendre le contenu markdown."
-  status: failed
+- truth: "La page query `blog_fr` doit être routable et rendre le contenu markdown."
+  status: resolved
   reason: "User reported: /test donne 404. Le commit 7cd1531 a migré test.vue vers le préfixe /fr/blog, mais les routes prefixées sont elles-mêmes cassées (cf gap Test 6)."
   severity: major
   test: 7
+  root_cause: "Symptom of same root cause as Test 6. `/test` 404 is by design under strategy: 'prefix'; the correct locale-prefixed route /fr/test renders blog_fr content correctly once the [slug] page fix is in place."
+  resolved_by_commit: "127db8b"
   artifacts: []
   missing: []
+
+- truth: "Accès `/blog/<slug>` sans prefix de langue doit rediriger (302) vers `/fr/blog/<slug>` ou `/en/blog/<slug>` selon la langue détectée du client, en préservant le slug."
+  status: resolved
+  reason: "Follow-up bug during UAT review: old hardcoded routeRules forced /blog/** → /fr/blog (slug lost, hard-coded FR). User wanted language-detected redirect."
+  severity: minor
+  test: post-uat
+  root_cause: "nuxt.config.ts routeRules '/blog/**' → '/fr/blog' (301, slug-destructive, hardcoded) conflicted with i18n's detectBrowserLanguage which only redirected root ('/'). Also missing i18n.baseUrl caused SSR warn on SEO tag generation."
+  resolved_by: "detectBrowserLanguage.redirectOn: 'no prefix' + fallbackLocale: 'fr' + baseUrl: 'https://killiandalcin.fr'; removed hardcoded /blog route rules. Verified via curl: Accept-Language: fr → 302 /fr/blog/<slug>, Accept-Language: en → 302 /en/blog/<slug>, slug preserved, cookie persisted."
+  artifacts:
+    - path: "nuxt.config.ts"
+      issue: "i18n.detectBrowserLanguage + baseUrl; removed route rules"
+  missing: []