Confirm type safety improvement for container network mode

[Copilot]

Summary of the Pull Request

This PR confirms that the type safety feedback on #13886 has been addressed. The member variable m_containerNetworkType was changed from int to WSLA_CONTAINER_NETWORK_TYPE in commit e0153c3 of the parent branch.

PR Checklist

• Closes: N/A - addresses review feedback on Implement container network mode #13886
• Communication: Discussed via review comment #2619910412
• Tests: No new tests needed - type change only
• Localization: N/A
• Dev docs: N/A
• Documentation updated: N/A

Detailed Description of the Pull Request / Additional comments

Changed WSLAContainerLauncher::m_containerNetworkType from int to the proper enum type WSLA_CONTAINER_NETWORK_TYPE for type safety and consistency with the WSLA_CONTAINER_NETWORK::ContainerNetworkType field it's assigned to.

Before:

private:
    std::string m_image;
    std::string m_name;
    int m_containerNetworkType;  // Unsafe type

After:

private:
    std::string m_image;
    std::string m_name;
    WSLA_CONTAINER_NETWORK_TYPE m_containerNetworkType;  // Type-safe enum

This eliminates implicit conversions and enables compiler validation of enum values.

Validation Steps Performed

Verified the type change is present in src/windows/common/WSLAContainerLauncher.h:60 and properly used throughout the implementation.

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