CLI: Initialize network option

[AmelBawa-msft]

Summary of the Pull Request

• Added --network option to container create and container run
• Input validation
• E2E tests for none, host, and invalid network modes on both create and run commands.

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

Validation Steps Performed

[Copilot]

Pull request overview

Adds a --network option to the wslc container create and wslc container run CLI commands and threads that selection through to container creation so callers can choose none, host, or bridge.

Changes:

• Introduces --network CLI argument for container create and run, including validation and localized help text.
• Plumbs the parsed network selection into ContainerOptions and into WSLCContainerLauncher during container creation.
• Adds E2E coverage for valid (none, host) and invalid network values, and updates help-text expectations.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/windows/wslc/e2e/WSLCE2EContainerRunTests.cpp	Adds --network E2E tests for container run and updates expected help output.
test/windows/wslc/e2e/WSLCE2EContainerCreateTests.cpp	Adds --network E2E tests for container create and updates expected help output.
src/windows/wslc/tasks/ContainerTasks.cpp	Parses --network and sets ContainerOptions.NetworkType.
src/windows/wslc/services/ContainerService.cpp	Passes options.NetworkType to WSLCContainerLauncher instead of hardcoding bridged.
src/windows/wslc/services/ContainerModel.h	Adds NetworkType to ContainerOptions with a default of bridged.
src/windows/wslc/commands/ContainerRunCommand.cpp	Exposes the new --network argument on container run.
src/windows/wslc/commands/ContainerCreateCommand.cpp	Exposes the new --network argument on container create.
src/windows/wslc/arguments/ArgumentValidation.h	Declares network type validation and parsing helpers.
src/windows/wslc/arguments/ArgumentValidation.cpp	Implements --network validation and string-to-enum parsing.
src/windows/wslc/arguments/ArgumentDefinitions.h	Defines the Network argument type and associates it with localization.
localization/strings/en-US/Resources.resw	Adds the localized description string for --network.