A fresh ScadaBridgeConfig has only the Admin LdapGroupMappings row
(InitialSchema migration ships one row, SecurityConfiguration.HasData
declares four). docker-env2/seed-sites.sh already inserts the missing
three idempotently; docker/seed-sites.sh did not, so multi-role got
Admin only on a primary cutover. Mirror the env2 insert block.
Switch site host to WebApplicationBuilder with Kestrel HTTP/2 gRPC server,
add GrpcPort/keepalive config, wire SiteStreamManager as ISiteStreamSubscriber,
expose gRPC ports in docker-compose, add site seed script, update all 10
requirement docs + CLAUDE.md + README.md for the new dual-transport architecture.