Phase 3 wiring (task #12):
- NostrSeedDiscovery: async ProviderDiscovery that queries relays for signed
seed adverts and parses endpoint ids (swarm/iroh_provider.rs, seed_advert.rs).
- seed_and_advertise publish path; dep-free fetch/publish helpers reuse the
node's Nostr identity (build_nostr_client/load_or_create_nostr_keys made
pub(crate)).
- swarm::init builds the IrohProvider once into a OnceLock runtime; providers()
returns it; announce_held_blob() is called from update.rs after a release
component passes both hash gates.
- config swarm_enabled (ARCHIPELAGO_SWARM_ENABLED, default off); server.rs init.
Paid swarm serving (Phase 4 step F):
- swarm/paid.rs gates the iroh-blobs provider through streaming::gate,
intercepting connect + GET (peer push hard-disabled). Free by default
(content-download service disabled); denies unpaid peers when enabled;
fails open on internal error so a payment fault never blocks distribution.
Wired into IrohProvider::new.
All iroh code behind the iroh-swarm feature; the default build is inert.
Default build clean; --features iroh-swarm: 11/11 swarm tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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