Same-day patch on 3.0.0. The README that landed with 3.0.0 carried
over inaccuracies that a copy-paste integrator would hit immediately
(client.basic.pay signature mismatch, three non-existent CLI
commands, wrong state-machine transition), plus misleading adapter
descriptions for X402 and Basic.

PyPI long descriptions are immutable per release, so the fix has to
ship as a new version. No SDK code changes — wheel content is
identical except for the embedded README metadata and version.

Full list in CHANGELOG.md [3.0.1] entry.