v0.32.0

Added

• I've added wf_agent_post_thread (wolfram/agent.h): post several texts as a thread, the first as a top-level post and each later one as a reply to the one before it with the first as root, so a client does not have to carry the root/parent bookkeeping. It stops at the first failure and says how many posts went through. (#166)

Fixed

• I've fixed a use-after-free in wf_xrpc_server_stop: a WebSocket worker that had already left the stream list could still be about to call MHD_upgrade_action when the daemon was stopped and its upgrade handle freed. That was the intermittent relay_server segfault on macOS. stop() now waits for such workers. (#164)