bug: MCP servers failed to load

### 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 6.6.87.2-microsoft-standard-WSL2 - Ubuntu 24.04.2 LTS

### Expected behaviour

After upgrading Q from version 1.15 to 1.16, the MCP server failed to load. It was working normally in version 1.15. The MCP server configuration is as follows:

json
"itrusSpec": {
"command": "java",
"args": [
"-jar",
".amazonq/itrus-mcp-dev-commands.jar"
],
"timeout": 60000
}

### Actual behaviour

✗ itrusSpec has failed to load after 2.22 s
- Mcp error: -32002: connection closed: initialize response
- run with Q_LOG_LEVEL=trace and see $TMPDIR/qlog/qchat.log for detail

### Steps to reproduce

_No response_

### Environment

```yaml

[q-details]
version = "1.16.0"
hash = "34986d95f660e2bce63189f1179de4a110507fe7"
date = "2025-09-16T21:59:42.09246Z (12h ago)"
variant = "minimal"

[system-info]
chip = "13th Gen Intel(R) Core(TM) i5-1340P"
total-cores = 8
memory = "7.60 GB"

[system-info.os.linux]
kernel_version = "6.6.87.2-microsoft-standard-WSL2"
id = "ubuntu"
name = "Ubuntu"
pretty_name = "Ubuntu 24.04.2 LTS"
version_id = "24.04"
version = "24.04.2 LTS (Noble Numbat)"

[environment]
cwd = "/mnt/d/idea/cloudgate"
cli-path = "/mnt/d/idea/cloudgate"
os = "Linux"
shell-path = "/usr/bin/bash"
shell-version = "5.2.21"
install-method = "unknown"
in-wsl = true

[env-vars]
DISPLAY = ":0"
PATH = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib:/mnt/c/WINDOWS/system32:/mnt/c/WINDOWS:/mnt/c/WINDOWS/System32/Wbem:/mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0/:/mnt/c/WINDOWS/System32/OpenSSH/:/mnt/d/maven/apache-maven-3.9.6/bin:/mnt/c/Users/USER/.jdks/temurin-17.0.11/bin:/mnt/c/Program Files/TortoiseSVN/bin:/mnt/c/Program Files/TortoiseSVN/bin:/mnt/c/Program Files/dotnet/:/mnt/c/Program Files (x86)/Tencent/微信web开发者工具/dll:/mnt/c/Pro:/mnt/c/Users/USER/AppData/Local/Android/Sdk/platform-tools:/mnt/c/Program Files/TortoiseGit/bin:/mnt/c/Program Files/Pandoc/:/mnt/c/Program Files/Calibre2/:/mnt/c/Program Files/nodejs:/mnt/c/Program Files/Docker/Docker/resources/bin:/mnt/d/learn/system/mingw64/bin:/mnt/c/Users/USER/AppData/Roaming/npm:/mnt/c/Program Files/Git/cmd:/mnt/c/Users/USER/.local/bin:/mnt/c/Users/USER/AppData/Local/Programs/Python/Launcher/:/mnt/c/Users/USER/AppData/Local/Microsoft/WindowsApps:/mnt/c/Users/USER/AppData/Local/Programs/Microsoft VS Code/bin:/mnt/c/Users/USER/AppData/Local/Programs/Fiddler:/mnt/c/Users/USER/AppData/Roaming/npm:/mnt/c/Users/USER/AppData/Local/UGit/app-5.25.0/resources/app/git/cmd:/mnt/c/Users/USER/AppData/Local/UGit/bin:/mnt/c/Users/USER/AppData/Local/Microsoft/WindowsApps:/mnt/c/Users/USER/AppData/Local/Programs/Kiro/bin:/mnt/c/Users/USER/AppData/Local/Programs/CodeBuddy/bin:/mnt/c/Users/USER/AppData/Local/Programs/Qoder/bin:/snap/bin:/home/USER/.local/bin"
QTERM_SESSION_ID = "08f4a54a9b0c4f24b62a955accf231c4"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "1.16.0"
SHE
```