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.

app/Http/Controllers/SitemapController.php

@@ -22,6 +22,18 @@ final class SitemapController extends Controller
 
     public function index(): Response|BinaryFileResponse
     {
+        if ((bool) config('sitemaps.pre_generated.enabled', true)) {
+            foreach ([
+                public_path('sitemaps/index.xml'),
+                public_path('sitemaps/sitemap.xml'),
+                public_path('sitemap.xml'),
+            ] as $path) {
+                if (is_file($path) && is_readable($path)) {
+                    return $this->xmlFileResponse($path);
+                }
+            }
+        }
+
         // 1. Published release (release management pipeline fallback).
         $published = $this->published->resolveIndex();
         if ($published !== null) {