ZIO Tapir Issue Reproduction

tapirdemo.scala

//> using scala "2.13.10"
//> using dep "dev.zio::zio:2.0.13"
//> using dep "dev.zio::zio-http:0.0.5" 
//> using dep "com.softwaremill.sttp.tapir::tapir-zio-http-server:1.2.12"
//> using dep "com.softwaremill.sttp.tapir::tapir-core:1.2.12"
//> using dep "com.softwaremill.sttp.tapir::tapir-swagger-ui-bundle:1.2.12"


/**
  * This is a simple example of using ZIO Tapir to create an HTTP server. 
  * To run this example, use the following command: `scala-cli run https://gist.github.com/ASRagab/d74409042bc080bb8ec88972a3eaade3`
  * Then access the swagger/openapi documentation at http://localhost:8080/docs
  * The server will run until you press Ctrl-C
  *
  * TO REPRODUCE THE ISSUE use 3.0.0-RC1 of zio-http instead of 0.0.5
  * The server will not startup, you cannot reach any of the endpoints and no errors are reported
  */


import sttp.tapir.PublicEndpoint
import sttp.tapir.server.ServerEndpoint
import sttp.tapir.server.ziohttp.ZioHttpInterpreter
import sttp.tapir.swagger.bundle.SwaggerInterpreter
import sttp.tapir.ztapir._
import zio._
import zio.http.{HttpApp, Server}

object Simple extends ZIOAppDefault {

  val PORT = 8080

  val helloEndpoint: PublicEndpoint[Unit, String, String, Any] =
    endpoint
      .in("api" / "v1" / "hello")
      .get
      .out(stringBody)
      .errorOut(stringBody)

  val lengthEndpoint: PublicEndpoint[String, String, Int, Any] =
    endpoint
      .in("api" / "v1" / "length")
      .post
      .in(stringBody)
      .out(plainBody[Int])
      .errorOut(stringBody)

  val swaggerEndpoints: List[ServerEndpoint[Any, Task]] =
    SwaggerInterpreter()
      .fromEndpoints(
        List(helloEndpoint, lengthEndpoint),
        "ZIO Tapir OpenAPI Explorer",
        "1.0"
      )

  val serverEndpoints: List[ServerEndpoint[Any, Task]] =
    List(
      helloEndpoint.zServerLogic(_ => ZIO.succeed("Hello, world!")),
      lengthEndpoint.zServerLogic(input => ZIO.succeed(input.length))
    )

  val httpApp: HttpApp[Any & Any, Throwable] = ZioHttpInterpreter().toHttp(serverEndpoints ++ swaggerEndpoints)

  override def run: ZIO[Any, Any, Any] =
    Console.printLine(s"Starting server at http://localhost:${PORT}/docs") *> 
    Server.serve(httpApp.withDefaultErrorResponse)
    .provide(Server.defaultWithPort(PORT))

}