Document that immediate re-announcements go directly to the triggering peer
(unicast) rather than to the multicast group, and explain the two conditions
that trigger a reply: new peer and restarted peer (site_id change).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
architecture.md is now a concise overview (~155 lines) with a
Documentation section linking to all sub-docs.
New sub-docs in docs/:
transport.md — wire modes, frame header, serialization, web peer
relay.md — delivery modes, memory model, congestion, scheduler
codec.md — stream metadata, format negotiation, codec backends
xorg.md — screen grab, viewer sink, render loop, overlays
discovery.md — multicast announcements, multi-site, site gateways
node-state.md — wanted/current state, reconciler, stats, queries
device-resilience.md — device loss handling, stream events, audio (future)
All cross-references updated to file links. Every sub-doc links back
to architecture.md. docs/transport.md links to docs/protocol.md.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
