- INotify/Thread epoll dispatch was silently dropping every live
core::INotify event (an isKnownINotify registry fixes it) - this had
broken mail delivery for over a week, masked by routine restarts.
- TCPServer::lock self-deadlocked every admin-console connection via a
plain std::mutex being re-entered; switched to recursive_mutex.
- TLS.cpp/h: SNI-based certificate selection (addSNIContext), the
groundwork for multi-tenant TLS (qualityiron.vegas alongside
barant.com on one APIServer process).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>