Download one honeypot_http parquet export

Download a single parquet snapshot for honeypot_http. Returns a 307 redirect to a presigned R2 URL valid for 24 hours. 307 (not 301) because the URL is minted per request and expires — intermediaries must not cache it.

Required scope: HONEYPOT_HTTP_FEED. Columns: timestamp, tunnel_id, domain, port, method, uri, version, headers (JSON string), raw (bytes), meta_proxy_ip, meta_server, meta_pool_id, meta_provider.