Chrome 151 across Windows, Linux, macOS and Android, with chrome-latest*
following it. Per-OS Firefox profiles. Certificate verification callbacks for
pinning. Response.Location(). Per-request header order.

Fixes both halves of the long-download problem: connections are held for the
response body's lifetime in both connection pools, so a large or slow transfer
is no longer cut off around two minutes in. Response bodies could be silently
corrupted under concurrency; HTTP/1.1 ignored context cancellation; proxy
handshakes were unbounded; the local proxy silently truncated compressed
responses.

Two changes are visible on the wire. The Go client package now sends the same
handshake as the session API, which moves its fingerprint to the correct value
for profiles carrying a signature-algorithm override. A partial header order is
now a prefix that extends the profile's own table rather than replacing it.

See CHANGELOG.md for the full list.