tasks: archive the bilingual blog folder-model deploy

tasks/completed_archive.json

@@ -70,5 +70,11 @@
     "subject": "Phase 0 deployed — draft links + Sveltia admin live on me.nech.pl, push to git.nech.pl, 2026-10-06",
     "completedAt": "2026-10-06",
     "learnings": "Runbook rsync recipe includes --delete (exact mirror, like games/opal). Trailing-slash smoke shape: trailingSlash:false pages answer on /tdah not /tdah/ (slash variant 404s; directory-without-index 403s as on /blog/). Client-component fixes verify via served-chunk md5 vs local build, not static HTML grep."
+  },
+  {
+    "id": "blog-6",
+    "subject": "Bilingual blog folder model deployed (drafts at /blog/d/<id> noindexed, per-collection admin) + GitLab implicit-grant auth fix, 2026-10-07",
+    "completedAt": "2026-10-07",
+    "learnings": "Folder-model migration: drafts live only under /blog/d/ gated by noindex + robots.txt Disallow, so smoke checks both URL shape (old /blog/hello-world-again.html must be absent) and served config.yml (auth_type: implicit for GitLab public-client PKCE failure). Sveltia config ships as a static artifact — verify the live copy, not just the repo."
   }
 ]