feat: SolaceNet gateway rails, IRU marketplace hardening, and docs

- Gateway adapter registry, rails routes, optional SOLACENET_GATEWAY_RAILS_ENFORCE; HTTP integration tests.
- IRU marketplace: rate limits, public routes, notifications/SMTP env docs; marketplace UI constants and flows.
- Quantum proxy legacy protocol types; debank/tezos/GSDS touch-ups; .env.example operator notes.
- SolaceNet doc set (gaps, runbooks, telecom schema example).

Tests: npm run test:iru-marketplace, npm run test:gateway (pass).
Note: full-repo tsc still reports unrelated legacy errors outside this change set.
Made-with: Cursor

scripts/seed-gateway-capability.ts

@@ -9,7 +9,7 @@ async function main() {
 			name: 'DBIS Gateway Microservices',
 			version: '1.0.0',
 			description:
-				'Regulated-grade integration fabric for SWIFT, DTC/DTCC, and extensible financial rails',
+				'SolaceNet-maintained gateway rail adapters and HTTP surface; many connectors are scaffolds until production APIs (see marketplace copy + PROTOCOL_GAPS_CHECKLIST). Governance: docs/solacenet/RAIL_AND_PROTOCOL_GOVERNANCE.md',
 			defaultState: 'enabled' as any,
 			dependencies: ['ledger', 'iso20022', 'reconciliation'].filter(Boolean),
 		});