Process exited with code 259 (0x00000103)

### Windows Terminal version

1.24.10921.0

### Windows build number

10.0.26200.8117

### Other Software

_No response_

### Steps to reproduce

1. Create the profie:
```
{
"closeOnExit": "never",
"commandline": "wt -p \"Command Prompt\" nslookup",
"name": "cmd2"
}
```
2. Run it.

### Expected Behavior

_No response_

### Actual Behavior

If `closeOnExit` set to `never`, `wt` will exit with code 259 and then run the `commandline` in the next tab.
if `closeOnExit` set to `always` and no wt is running, `wt` will just exit with code 259.

https://github.com/user-attachments/assets/6ac85a98-0042-4ba2-b493-7bbc7097406c

Reproduce the issue with the provided profile and compare behavior when closeOnExit is set to never versus always, both with and without an existing wt instance. Trace the Windows Terminal handling of the commandline and process exit code; done when nslookup runs in the intended tab without wt exiting with code 259.

Written by the indexing model from the issue text.