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-solacenet-gateway-provider.ts

@@ -0,0 +1,63 @@
+/**
+ * Upsert solacenet_provider_connector for the gateway rail plane (PG-SN-002).
+ * Run: npx ts-node -r tsconfig-paths/register scripts/seed-solacenet-gateway-provider.ts
+ * Requires DATABASE_URL and prisma client.
+ */
+
+import { v4 as uuidv4 } from 'uuid';
+import type { Prisma } from '@prisma/client';
+import prisma from '@/shared/database/prisma';
+import { logger } from '@/infrastructure/monitoring/logger';
+
+const CONNECTOR_ID = 'dbis-gateway-rail-plane';
+
+async function main() {
+	const metadata: Prisma.InputJsonValue = {
+		capabilityId: 'gateway-microservices',
+		governanceDoc: 'docs/solacenet/RAIL_AND_PROTOCOL_GOVERNANCE.md',
+		note: 'Logical provider for SolaceNet-maintained gateway rail adapters; bindings use solacenet_capability_binding.',
+	};
+
+	const existing = await prisma.solacenet_provider_connector.findUnique({
+		where: { connectorId: CONNECTOR_ID },
+	});
+
+	if (existing) {
+		await prisma.solacenet_provider_connector.update({
+			where: { connectorId: CONNECTOR_ID },
+			data: {
+				name: 'DBIS Gateway Rail Plane (SolaceNet)',
+				providerType: 'gateway-rail',
+				status: 'active',
+				metadata,
+			},
+		});
+		logger.info('Updated solacenet_provider_connector', { connectorId: CONNECTOR_ID });
+		return;
+	}
+
+	await prisma.solacenet_provider_connector.create({
+		data: {
+			id: uuidv4(),
+			connectorId: CONNECTOR_ID,
+			name: 'DBIS Gateway Rail Plane (SolaceNet)',
+			providerType: 'gateway-rail',
+			status: 'active',
+			metadata,
+		},
+	});
+	logger.info('Created solacenet_provider_connector', { connectorId: CONNECTOR_ID });
+}
+
+if (require.main === module) {
+	main()
+		.catch((e) => {
+			logger.error('seed-solacenet-gateway-provider failed', {
+				error: e instanceof Error ? e.message : e,
+			});
+			process.exitCode = 1;
+		})
+		.finally(async () => {
+			await prisma.$disconnect();
+		});
+}