Add default-folder, default-workspace and disable-telemetry to serve-web CLI

[danplischke]

Closes: #299511

This PR adds support for passing the following options and flag for the code server CLI to the Rust CLI.

• --default-folder <path> – Sets the default workspace folder to open when no input is specified in the browser URL.
• --default-workspace <path> – Sets the default workspace file to open when no input is specified in the browser URL.
• --disable-telemetry – Disables telemetry reporting.

To test, run the following commands in the cli directory:

export VSCODE_CLI_QUALITY=stable
export VSCODE_CLI_UPDATE_URL=https://update.code.visualstudio.com 
export VSCODE_CLI_TUNNEL_SERVER_QUALITIES='{"stable":{"serverApplicationName":"code-server"}}'  

cargo run -- serve-web --accept-server-license-terms --default-folder .  --disable-telemetry

cargo run -- serve-web --accept-server-license-terms --default-workspace .

[danplischke]

@microsoft-github-policy-service agree

[Copilot]

Pull request overview

This PR exposes three additional CLI flags from the underlying TypeScript code server to the Rust CLI's serve-web command: --default-folder, --default-workspace, and --disable-telemetry. These options allow users to specify a default workspace folder/file to open when no input is given in the browser URL, and to disable telemetry reporting.

Changes:

• Added three new fields (default_folder, default_workspace, disable_telemetry) to the ServeWebArgs struct with appropriate clap annotations.
• Added pass-through logic in start_version to forward these new arguments to the spawned server process command, following the same pattern as existing options.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
cli/src/commands/args.rs	Adds default_folder, default_workspace (both Option<String>), and disable_telemetry (bool) fields to ServeWebArgs.
cli/src/commands/serve_web.rs	Forwards the new arguments to the spawned server process command line, matching existing forwarding patterns.

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