Bns-indexer on VPS was only exposed on port 50011 via nginx, which corporate
firewalls, mobile carriers, and many VPNs block. Added an nginx location on
443 that proxies to the same 127.0.0.1:50010, giving us a browser-friendly
WSS endpoint on the standard HTTPS port.
* lib/electrum.js CHIPNET_ELECTRUM: wss://silentmode.st/electrum listed
first (used by registrar.connect() + everything that depends on it).
* lib/resolver-web.js CHIPNET_ELECTRUM: same, kept in lockstep per the
"change both together" comment.
* bns-register.js bundle rebuilt to bake the new list.
* portal.html imports the bundle with ?v= so Chrome's in-memory ES-module
map doesn't serve a stale copy across tabs.
Portal now connects successfully; next remaining issue is that
bns-indexer only supports (server.version, get_history, transaction.get) —
`blockchain.scripthash.listunspent` for wallet address queries is not
implemented, so the "list your names" step fails there. Follow-up: add a
GET /api/holdings/<address> to public-gateway.mjs backed by the existing
BCHN electrum access, so the portal can pull holdings over plain HTTP.
