Fix incorrect timeout causing WSL1 OOBE to fail if the OOBE process takes longer than 30 seconds

[OneBlue]

Summary of the Pull Request

If the OOBE process for a WSL1 distros takes more than 30 seconds, we'll hit the LAUNCH_PROCESS_DEFAULT_TIMEOUT_MS timeout which will cause the channel to be closed, which will fail the OOBE, causing all sorts of issues.

This change removes the timeout for this specific transaction, so we don't fail WSL1 OOBE if it takes more than 30 seconds to complete

PR Checklist

• Closes: Link to issue #xxx
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated if needed and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated if needed
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

This issue could cause OOBE failures looking like this:

λ wsl --install <distro> --version 1
Installing: <distro>
Distribution successfully installed. It can be launched via 'wsl.exe -d  <distro>'
Launching  <distro>...
Provisioning the new WSL instance <distro>
This might take a while...

<After 30 seconds>
<3>WSL (10 - SessionLeader) ERROR: SendMessage:131: Failed to write message LxInitOobeResult. Channel: OOBE
<3>WSL (10) ERROR: Broken pipe @src/shared/inc\SocketChannel.h:132 (SendMessage)
<3>WSL (10 - SessionLeader) ERROR: CreateProcessCommon:805: Create process failed

Validation Steps Performed

[Copilot]

Pull Request Overview

This PR fixes a timeout issue in WSL1 OOBE (Out of Box Experience) where the process would fail if it took longer than 30 seconds to complete, which could happen when waiting for user input.

• Removes the default 30-second timeout for OOBE message reception by passing INFINITE timeout
• Refactors timeout handling to use a configurable parameter instead of hardcoded constants
• Centralizes timeout value definition to improve maintainability

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
LxssInstance.cpp	Updates OOBE message reception to use infinite timeout with explanatory comment
LxssMessagePort.h	Adds configurable timeout parameter to Receive method and defines default timeout constant
LxssMessagePort.cpp	Implements timeout parameter in Receive method and replaces hardcoded timeout values

[Copilot]

The WaitForMessage function parameter Timeout is not being used - it's using the passed Timeout parameter instead of the method's own Timeout parameter. This could cause issues if callers expect the method's Timeout parameter to be respected.