ozon Product by urls

Ozon Product Information by URL

CoreClaw worker adapted from src/crawler_platform/sites/site_ozon.

Input follows the CoreClaw request-list format used by the LinkedIn workers:
url is an array of { "url": "..." } items, with optional
retry_times and max_concurrency. A successful product-page request writes
the merged cookie jar to cookies.json; later runs load that file automatically.
default_cookies.py contains the supplied initial cookie snapshot.