chore(relays): drop retiring relay.goblin.st from the pinned pool

relay.goblin.st + nrelay.us-ea.st retire 2026-07-04 04:44 UTC. The live
gist pool already dropped relay.goblin.st; this removes it from the
compiled-in PINNED_POOL fallback so first-run/offline no longer ships a
dead relay. relay.floonet.dev remains THE primary dm+discovery+exit
(money-path) relay.

- pool.rs: remove the relay.goblin.st entry (12 relays now) and repoint
  the pinned-pool tests onto relay.floonet.dev (counts 13->12, dm 11->10,
  discovery 4->3; the dm-membership and exit assertions). Synthetic
  parsing-logic fixtures that name relay.goblin.st are left untouched.
- wallet/e2e.rs: refresh the money-path E2E harness doc comment onto
  relay.floonet.dev (the RELAY_A/RELAY_B consts already point there) so
  the ignored on-chain test documents a live relay after retirement.

Validated: cargo test --lib pool (5 passed), cargo build ok.

src/nostr/pool.rs

@@ -67,7 +67,6 @@ const PINNED_POOL: &str = r#"{
   "min_message_length": 131072,
   "relays": [
     { "url": "wss://relay.floonet.dev", "roles": ["dm", "discovery"], "vetted": "2026-07-02", "exit": "EqbUPt7aYkar2CTmjBVnyWaKzb2WT8NdojUGXU4mrfNG.AF5YCD8hgEUqByamrPqZz72h7GE599LbqQrhaew9bBip@HfyUPUv4z8uMQoZYuZGMWf6oe2vaKBVPrfgHk6WvwFPe" },
-    { "url": "wss://relay.goblin.st",    "roles": ["dm", "discovery"], "vetted": "2026-07-01", "exit": "4XPnpmFdieZBY1BM2jU9Qn915v5RGz58ywpgQhuFKBao.8NMrW1i4VaPhY6qhV7supid7P1YcWJ9mGZBKjGEuqN9U@B8bX5x5yKa7oQMCNioLS9seYwNCio3U9jYPxgCZoKjk5" },
     { "url": "wss://relay.primal.net",   "roles": ["dm"],              "vetted": "2026-07-01" },
     { "url": "wss://relay.damus.io",     "roles": ["dm"],              "vetted": "2026-07-01" },
     { "url": "wss://nos.lol",            "roles": ["dm"],              "vetted": "2026-07-01" },
@@ -381,16 +380,15 @@ mod tests {
 		let pool = RelayPool::parse(PINNED_POOL).expect("pinned pool must parse");
 		assert_eq!(pool.version, 1);
 		assert_eq!(pool.min_message_length, MIN_MESSAGE_LENGTH);
-		assert_eq!(pool.relays.len(), 13);
+		assert_eq!(pool.relays.len(), 12);
 		let dm = pool.dm_relays();
-		assert_eq!(dm.len(), 11);
+		assert_eq!(dm.len(), 10);
 		assert!(dm.iter().any(|r| r.url == "wss://relay.floonet.dev"));
-		assert!(dm.iter().any(|r| r.url == "wss://relay.goblin.st"));
 		assert!(dm.iter().all(|r| r.vetted.is_some()));
 		let disc = pool.discovery_relays();
-		// relay.floonet.dev + relay.goblin.st carry both roles; the two indexers
+		// relay.floonet.dev carries both roles; the two indexers
 		// are discovery-only.
-		assert_eq!(disc.len(), 4);
+		assert_eq!(disc.len(), 3);
 		assert!(disc.contains(&"wss://purplepag.es".to_string()));
 		assert!(disc.contains(&"wss://indexer.coracle.social".to_string()));
 	}
@@ -398,11 +396,11 @@ mod tests {
 	#[test]
 	fn exit_field_is_optional_and_looked_up_by_url() {
 		// The pinned pool advertises the money-path relay's co-located scoped
-		// exit (the .8 floonet-mixexit) so it bootstraps OFFLINE, before any
+		// exit (the .AF floonet-mixexit) so it bootstraps OFFLINE, before any
 		// network; every other relay is exit-less (reached over the tunnel).
 		let pinned = RelayPool::parse(PINNED_POOL).unwrap();
 		assert!(pinned.has_exit());
-		assert!(pinned.exit_for("wss://relay.goblin.st").is_some());
+		assert!(pinned.exit_for("wss://relay.floonet.dev").is_some());
 		assert!(pinned.exit_for("wss://nos.lol").is_none());
 
 		// A pool that DOES advertise an exit for one relay.

src/wallet/e2e.rs

@@ -12,16 +12,17 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//! LIVE two-wallet end-to-end payment over the Floonet path — CROSS-RELAY and
+//! LIVE two-wallet end-to-end payment over the Floonet path — over the shared
-//! CROSS-NODE. Two real Goblin wallets restored from mainnet mnemonics (seeds
+//! exit-backed primary relay, CROSS-NODE. Two real Goblin wallets restored from
-//! via env, NEVER a file) run on DIFFERENT relays (A on `wss://relay.goblin.st`,
+//! mainnet mnemonics (seeds via env, NEVER a file) both run on the shipped
-//! B on `wss://nrelay.us-ea.st`, each pinned via its own `nostr.toml`) and
+//! default relay (`wss://relay.floonet.dev`, each pinned via its own
-//! DIFFERENT Grin nodes (A on grincoin.org, B on main.gri.mw). One sends a real
+//! `nostr.toml`) but on DIFFERENT Grin nodes (A on grincoin.org, B on
-//! gift-wrapped Grin payment to the other, asynchronously through the relays.
+//! main.gri.mw). One sends a real gift-wrapped Grin payment to the other,
-//! Proves the whole money path a phone would use, plus the outbox model: the
+//! asynchronously through the relay. Proves the whole money path a phone would
-//! sender publishes the wrap to the RECIPIENT's advertised (kind 10050) relay,
+//! use, plus the outbox model: the sender publishes the wrap to the RECIPIENT's
-//! not its own, and settlement posts through two independent nodes.
+//! advertised (kind 10050) relay, and settlement posts through two independent
-//! mixnet -> exit -> cross-relay gift wrap -> S2 -> finalize -> post.
+//! nodes.
+//! mixnet -> exit -> gift wrap -> S2 -> finalize -> post.
 //!
 //! Ignored by default (real mainnet funds + a full recovery scan). Run:
 //!   GOBLIN_E2E_SEED_A="word ..." GOBLIN_E2E_SEED_B="word ..." \