Ship production optimization M1-M12.5A: queues, metrics, HTTP observability, and vector search reliability.

Keep similar-ai from tripping the global circuit on a lone URL 502, clamp Qdrant search to 100, and add Server-Timing plus slow-request logging. Studio shared props, Academy S3 exists caching, heat chunking, and Redis/scheduler hygiene stay in this rollout.

scripts/sync-safe-updated.sh

@@ -329,6 +329,9 @@ build_rsync_args() {
     --exclude "/var/php-sessions"
     --exclude "/oldSite"
     --exclude "/vendor"
+    --exclude ".config"
+    --exclude ".copilot"
+    --exclude ".vscode"
     -e "$ssh_bin"
   )
 }