[Bug]: container hangs and cant terminate (^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2])

### I have done the following

- [x] I have searched the existing issues
- [ ] If possible, I've reproduced the issue using the 'main' branch of this project

### Steps to reproduce

```
container run -t nixos/nix
bash-5.3# ls

^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
```

```
> container run --tty ubuntu:resolute
root@c30d6ce8-2bcf-4e81-ae1b-6009ad4ed69f:/# ls
^Cfailed to send signal: ["error": invalidArgument: "missing signal in xpc message", "signal": 2]
^Cfailed to send signal: ["signal": 2, "error": invalidArgument: "missing signal in xpc message"]
^Cfailed to send signal: ["signal": 2, "error": invalidArgument: "missing signal in xpc message"]
^Cfailed to send signal: ["signal": 2, "error": invalidArgument: "missing signal in xpc message"]
^Cfailed to send signal: ["signal": 2, "error": invalidArgument: "missing signal in xpc message"]
```

### Problem description

Run any container in tty mode. Run any command. It freezes and can not exit anymore.

### Environment

```markdown
- OS: 26.5.1 (25F80)
- Xcode:
- Container: 1.0.0
```

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct

Start by reproducing the hang with `container run -t nixos/nix` or `container run --tty ubuntu:resolute`, then send ^C after running `ls`. Trace the terminal signal path around the reported XPC error, `missing signal in xpc message`. Done means Ctrl-C terminates or returns control from the interactive container without repeated errors.

Written by the indexing model from the issue text.