kiro-cli chat does not open on Linux — silently exits. Only --classic

### Checks

- [x] I have searched [github.com/aws/amazon-q-developer-cli/issues](https://github.com/aws/amazon-q-developer-cli/issues?q=) and there are no duplicates of my issue
- [x] I have run `q doctor` in the affected terminal session
- [x] I have run `q restart` and replicated the issue again

### Operating system

Linux 6.17.0-14-generic - Linux Mint 22.3

### Expected behaviour

kiro-cli chat does not open on Linux — silently exits. Only --classic
flag works.

### Actual behaviour

kiro-cli chat does not open on Linux — silently exits. Only --classic
flag works.

### Steps to reproduce

_No response_

### Environment

```yaml

[q-details]
version = "2.0.1"
hash = "4a41569da83e25b6ab94898d7c4c83fa18cb5216"
date = "2026-04-17T14:49:43.303879Z (2d ago)"
variant = "minimal"

[system-info]
chip = "Intel(R) Core(TM) i5-3437U CPU @ 1.90GHz"
total-cores = 2
memory = "11.55 GB"

[system-info.os.linux]
kernel_version = "6.17.0-14-generic"
id = "linuxmint"
name = "Linux Mint"
pretty_name = "Linux Mint 22.3"
version_id = "22.3"
version = "22.3 (Zena)"

[environment]
cwd = "/home/USER/Music"
cli-path = "/home/USER/Music"
os = "Linux"
shell-path = "/usr/bin/bash"
shell-version = "5.2.21"
terminal = "Gnome Terminal"
install-method = "unknown"

[env-vars]
DISPLAY = ":0"
PATH = "/home/USER/Android/Flutter/flutter/bin:/home/USER/Android/Flutter/flutter/bin:/home/USER/Android/Flutter/flutter/bin:/home/USER/Android/Flutter/flutter/bin:/home/USER/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/USER/.local/bin:/home/USER/.local/share/JetBrains/Toolbox/scripts"
QTERM_SESSION_ID = "ab326826800b4309af147f9820334e52"
QT_IM_MODULE = "ibus"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "2.0.1"
SHELL = "/bin/bash"
TERM = "xterm-256color"
XDG_CURRENT_DESKTOP = "ubuntu:GNOME"
XDG_SESSION_DESKTOP = "ubuntu"
XDG_SESSION_TYPE = "wayland"
XMODIFIERS = "@im=ibus"
```

Inizia riproducendo `kiro-cli chat` su Linux Mint 22.3 con la versione segnalata e confrontalo con `kiro-cli chat --classic`. Esamina l'output di `q doctor` e `q restart`, quindi traccia il punto di ingresso della chat per individuare l'uscita silenziosa. Il lavoro è completato quando il comando di chat standard si apre correttamente su Linux senza richiedere `--classic`.

Scritto dal modello di indicizzazione a partire dal testo della issue.