Architecture values

Architecture values retain authored identities and explicit connections. Constructors copy collections. Parent ownership, ports, independent arrowheads, parallel connection identities and ordered alignments remain separate values.

///|
test "architecture constructors" {
  let services = [
    @architecture.Service::new("api"),
    @architecture.Service::new("db"),
  ]
  let edge = @architecture.Connection::new(
    "request",
    @architecture.Endpoint::new("api", Right),
    @architecture.Endpoint::new("db", Left),
    target_head=true,
  )
  let architecture = @architecture.Architecture::new("example", services[:], [
    edge,
  ])
  assert_eq(@architecture.validate(architecture).length(), 0)
}

validate has explicit node, connection, depth and work limits. It reports missing/duplicate identities, invalid parents, ownership cycles, invalid endpoints, unowned group attachments and invalid alignment members. Validation does not invent nodes or repair ownership. No syntax, renderer or host API is required to construct or validate a model.