failed to connect to frog

```
failed to open Frog connection: localhost:7001
Reason: invalid socket : ClientSocket: Connection on localhost:5 failed (Connection refused)
```

I get this error repeatedly with all the dependencies running on correct ports. Why would the program attempt to connect to port 5?

Start by tracing the code that opens the Frog connection and determines the target port, then reproduce the failure with Frog and the other dependencies running on their stated ports. Compare the configured port with the reported localhost:5 attempt and identify why they differ; done means the cause is confirmed and the connection uses the intended port.

Written by the indexing model from the issue text.