PunktfunkConnection.setCursorRender(clientDraws:) over the new
punktfunk_connection_set_cursor_render export, driven by one
edge-detected reconciler in StreamView (clientDraws = captured &&
desktopMouse) called from every transition — the ⌃⌥⇧M chord,
engage/release, and session start. Capture model and released now get
the host-composited pointer back in the video (full fidelity); the
desktop model keeps the local NSCursor path. xcframework rebuilt v12.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>