- lib/nntp/xover_client: a minimal one-connection client for seed:range with XFEATURE COMPRESS GZIP (a zlib stream after "224 … [COMPRESS=GZIP]", then a "." line; 420 for an empty range). About 6x less header traffic. Overviews come out with the field names nntp-js uses. - SfvService.claimAll: one sfv_entries lookup per stored batch. - Fragments go through the regular ingest path beside fetching (at most two batches in flight); a failure fails the run at the end. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>