feat(bikeshare): add nine Spanish city bike systems

Adds the station-based public bike systems of seven Spanish cities on
PBSC and two on JCDecaux, 1,843 stations in all (live feeds, 2026-10-17):

- PBSC (`<city>.publicbikesystem.net`, GBFS v2 like Bicing): BiciMAD
  (Madrid), Bizi Zaragoza, BIKI (Valladolid), BiciCoruña, Dbizi
  (Donostia-San Sebastián), Bilbao Bizi and BicinRivas (Rivas-Vaciamadrid).
- JCDecaux (`api.cyclocity.fr/contracts/…`, like Lillestrøm): Valenbisi
  (Valencia) and Sevici (Seville).

Both hosts are already allowed by the proxy. Every system uses a 40 km
load radius; the farthest station is 11.7 km from its centre (BiciMAD).
The radius also keeps out what two feeds list away from their city:
Sevici's workshop at (0,0) and lab in Madrid, and BiciCoruña's planned
stations with no position yet.

spainCitiesSystems.test.mjs checks the registry and proxy for each feed,
that the outermost live stations activate their system and sit inside
its radius, that central Madrid activates BiciMAD and BicinRivas, that
the far-away stations are not loaded through the real ingestion path,
and that JCDecaux names arrive without underscores and PBSC capacities
as docks.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layers/bikeshare/registry.js

@@ -604,6 +604,114 @@ const RAW_GBFS_CITY_REGISTRY = [
       'https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_bs/en/station_status.json',
     provider: 'AMBici',
   },
+  {
+    id: 'madrid-bicimad',
+    city: 'Madrid, Spain',
+    centerLat: 40.4241,
+    centerLon: -3.6825,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://madrid.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://madrid.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'BiciMAD',
+  },
+  {
+    id: 'valencia-valenbisi',
+    city: 'Valencia, Spain',
+    centerLat: 39.4706,
+    centerLon: -0.3749,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://api.cyclocity.fr/contracts/valence/gbfs/station_information.json',
+    stationStatusUrl:
+      'https://api.cyclocity.fr/contracts/valence/gbfs/station_status.json',
+    provider: 'Valenbisi',
+  },
+  {
+    id: 'zaragoza-bizi',
+    city: 'Zaragoza, Spain',
+    centerLat: 41.6481,
+    centerLon: -0.8927,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://zaragoza.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://zaragoza.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'Bizi Zaragoza',
+  },
+  {
+    id: 'sevilla-sevici',
+    city: 'Seville, Spain',
+    centerLat: 37.3726,
+    centerLon: -5.9607,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://api.cyclocity.fr/contracts/seville/gbfs/station_information.json',
+    stationStatusUrl:
+      'https://api.cyclocity.fr/contracts/seville/gbfs/station_status.json',
+    provider: 'Sevici',
+  },
+  {
+    id: 'valladolid-biki',
+    city: 'Valladolid, Spain',
+    centerLat: 41.6233,
+    centerLon: -4.7382,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://valladolid.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://valladolid.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'BIKI',
+  },
+  {
+    id: 'a-coruna-bicicoruna',
+    city: 'A Coruña, Spain',
+    centerLat: 43.3534,
+    centerLon: -8.4156,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://acoruna.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://acoruna.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'BiciCoruña',
+  },
+  {
+    id: 'donostia-dbizi',
+    city: 'Donostia-San Sebastián, Spain',
+    centerLat: 43.3075,
+    centerLon: -1.9696,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://sansebastian.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://sansebastian.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'Dbizi',
+  },
+  {
+    id: 'bilbao-bilbaobizi',
+    city: 'Bilbao, Spain',
+    centerLat: 43.2624,
+    centerLon: -2.9367,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://bilbao.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://bilbao.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'Bilbao Bizi',
+  },
+  {
+    id: 'rivas-bicinrivas',
+    city: 'Rivas-Vaciamadrid, Spain',
+    centerLat: 40.3535,
+    centerLon: -3.5319,
+    loadRadiusKm: 40,
+    stationInformationUrl:
+      'https://rivas.publicbikesystem.net/customer/gbfs/v2/en/station_information.json',
+    stationStatusUrl:
+      'https://rivas.publicbikesystem.net/customer/gbfs/v2/en/station_status.json',
+    provider: 'BicinRivas',
+  },
 ];
 function normalizeRegistryEntry(entry) {
   const id = String(entry?.id || '')