Org name like -/ are not properly escaped when passed to bt

[Cedric / ViaDézo1er (viadezo1er)]

After:

◇  Switch Braintrust CLI from ced (ced/test) to -/ (-//My Project)?
│  Yes
│
◆  Configured Braintrust CLI.
│

Before:

◇  Switch Braintrust CLI from ced (ced/test) to -/ (-//My Project)?
│  Yes
│
▲  Could not configure Braintrust CLI: Braintrust CLI login failed with exit code 2. error: unexpected argument '-/' found
│
│  Usage: bt auth [OPTIONS] <COMMAND>
│
│  For more information, try '--help'.
│

The exact flow (thus the text you'll see) depends on whether bt was already logged in before running spark, but the bug is the same.