Restrict routing to maritime ports

scripts/seed-reference.ts

@@ -1,6 +1,7 @@
 import { createHash } from 'node:crypto'
 import { readFileSync } from 'node:fs'
 import { ensureGraph, getDb } from '../dist/db.js'
+import { AFRICA_MARITIME_LOCODES } from '../dist/maritime.js'
 
 type SupplierSeed = { lei: string; name: string; countryCode: string; city: string }
 type HubSeed = {
@@ -155,6 +156,7 @@ const hubNodes = hubs.map((hub) => {
     country,
     country_code: hub.countryCode,
     transport_types: transportTypes(hub.functionCode),
+    is_maritime_port: AFRICA_MARITIME_LOCODES.has(hub.code),
     navigation_priority: priorityHubCodes.has(hub.code) ? 1 : 0,
     source: 'UN/LOCODE Africa',
     locode: hub.code,