The peer top-up loop re-announced to trackers only at the full advertised
interval (~30 min), so a torrent that dropped to a handful of peers would
sit there for up to half an hour with only the 5-minute DHT refresh to
help — looking like the re-announce system was dead.
Now, when fewer than LOW_PEER_THRESHOLD (10) peers are connected, the next
tracker announce is scheduled at the tracker's min_interval floor (never
below 60s) instead of the full interval, so a thin swarm actually tries to
recover. Once peers recover the full interval is used again. Capture the
tracker's min_interval (was being dropped) to stay announce-compliant.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
096535292d