- protocol.md: add START_DISPLAY (0x000A) and STOP_DISPLAY (0x000B) wire
schemas and field descriptions; add both to command table
- xorg.md: add 'Multiple windows' section covering glfwPollEvents global
behaviour, per-context glfwMakeContextCurrent requirement, and
glfwInit/glfwTerminate ref-counting; includes the gotcha that
short-circuiting the event loop can starve non-polled windows
- planning.md: add cooperative capture release deferred decision;
add xorg viewer remote controls (zoom, pan, scale, future shader
post-processing) to deferred decisions; note xorg viewer controls
not yet exposed remotely in module table
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>