E2E-verified both directions dev-box<->x250 over real RF (5KB image ~60s):
1. Sender daemon never called link.identify() — receiver's
get_remote_identity() was None, so every arrived transfer carried an
empty source_hash and the Rust side dropped it (now also warns
instead of silently vanishing it).
2. Receiver treated resource.data as bytes, but RNS hands a concluded
Resource's data as a file-like BufferedReader — b64encode raised
TypeError and the transfer was lost even when attributed.
3. Radio twins of merged contacts carry the peer's Archipelago ed25519
key as pubkey_hex, not an RNS hash — prefix lookup could never match
('Unknown Reticulum prefix', observed live). resolve_dest_hash now
falls back to matching the announce-bound arch_pubkey_hex.
4. The daemon RPC socket kept asyncio's default 64KiB line limit; any
attachment >~48KB overflowed it and tore down the whole daemon
connection ('reticulum-daemon is gone'). Raised to 16MiB.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>