Archive the Clarté hosting move

tasks/completed_archive.json

@@ -34,5 +34,11 @@
     "subject": "Fixture image codec fix (9.3M PNG → 145K JPEG) + toolchain incident",
     "completedAt": "2026-09-06",
     "learnings": "PNG is the wrong codec for photographic renders at any resize; JPEG q84 at 1600px was 64× lighter. Incident: something pruned Node 20's lib/node_modules (likely a disk-hygiene pass) leaving broken bin shims — nvm trees are toolchain, not cache; guard cleanup there."
+  },
+  {
+    "id": "clarte-1",
+    "subject": "Clarté ADHD self-assessment hosted at me.nech.pl/tdah/ + /adhd/ (ex GitHub Pages)",
+    "completedAt": "2026-09-21",
+    "learnings": "cp -r propagates source perms (Diag_ADHD ships 600) through public/ → out/ → nginx 403 as www-data can't read; fix modes at the source AND the build artifact. Old GitHub Pages deployments retire via a noindex meta-refresh stub kept in GH Actions' static-site/."
   }
 ]
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