Minimal client over tokio::net::TcpStream — AUTHENTICATE then
SIGNAL NEWNYM, one-shot connection. Supports cookie-file and
password auth (cookie preferred when both provided); covers the
multi-line `250-...\r\n250 OK` reply form so future torrc tweaks
won't confuse the parser.
Not yet wired into the crawler — that lands in the next commits.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
d37b94871e