- how it works: async POST /v2/tasks + polling, window held between tasks, /v1/solve stays synchronous; example uses an http proxy and native Linux UA - new "Architecture" section (api, RabbitMQ, worker, Redis) via the optional engine block; base engine styles moved into landing.css - features: window between tasks, inner_text; limits: open window takes a slot Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>