Switch bridge TCP↔RNS tunnel from fire-and-forget RNS.Packet to
RNS.Buffer over RNS.Channel, which provides ordered reliable delivery
with automatic retransmission. A dropped packet no longer silently
corrupts Radicle's Noise session.
Delete adapter.py, link.py, messages.py (and their tests) — these
implemented a parallel peer-discovery and binary gossip layer that
duplicates what Radicle handles natively over the bridge session.
Remove the cmd_node, cmd_ping, cmd_peers CLI commands that used them.
Remove --lora flag: Reticulum caps announce bandwidth at 2% per
interface automatically, so application-level duty-cycle management
is unnecessary. --announce-retry-delays remains for tuning startup
timing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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