Connect failures should mention the port number

I got this error:

```
node:events:491
throw er; // Unhandled 'error' event
^

Error: read ECONNRESET
at TCP.onStreamRead (node:internal/stream_base_commons:217:20)
Emitted 'error' event on Socket instance at:
at emitErrorNT (node:internal/streams/destroy:157:8)
at emitErrorCloseNT (node:internal/streams/destroy:122:3)
at processTicksAndRejections (node:internal/process/task_queues:83:21) {
errno: -104,
code: 'ECONNRESET',
syscall: 'read'
}
```

I have multiple TCP data jets running, so its not clear from the error which one of them failed. Or if its a TCP datajet of a forward datajet.

No file or test is named. Start by tracing TCP datajet connection setup and error handling, including forward datajets; done means connection failures identify the affected port so multiple running datajets can be distinguished.

Written by the indexing model from the issue text.