- Cut every fragment of a stream from one encoding (age frozen at the
first fragment) and bounds-check the slice: re-encoding mid-stream
corrupted fragments and could panic when the tick went backwards.
- Fold the bloom summary to fit the MTU instead of sending a ~540-byte
frame that small-MTU links reject; drop the sim's summary MTU
exemption that hid this.
- Finish a peer's in-flight stream before starting another, and count
an addressed message as delivered only after its last fragment.
- Alternate custody and broadcast per peer, rotate through addressed
candidates, and evict the oldest bounce record when full, so neither
path starves.
- Add Exchange::on_send_error; Node::poll uses it so Busy/Unreachable
sends are retried rather than silently dropped.
- Clear bounce records per contact, record duplicates against their
sender, and skip addressed messages that cannot fit the MTU.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
kyleandClaude Opus 5.5
cc39318673