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.

config/forum_security.php

@@ -15,6 +15,8 @@ return [
     'queues' => [
         'moderation' => env('FORUM_SECURITY_MODERATION_QUEUE', 'forum-moderation'),
         'firewall' => env('FORUM_SECURITY_FIREWALL_QUEUE', 'forum-security'),
+        // Plugin jobs have no Horizon consumer. Pause enqueue until a worker exists.
+        'dispatch_enabled' => (bool) env('FORUM_QUEUE_DISPATCH_ENABLED', false),
     ],
 
     'firewall' => [