Fix CliArgs interface documentation to match implementation

[Copilot]

The CliArgs interface documentation in plugin.md showed listEnabled?: boolean while the actual implementation in src/cli.ts uses listEnabledPlugins: boolean.

Changes:

• Updated plugin.md to use listEnabledPlugins: boolean to match the implementation

export interface CliArgs {
  command: "run" | "operator" | "plugin";
  // ... existing fields ...
  pluginSubcommand?: "enable" | "disable";
  listEnabledPlugins: boolean;  // was: listEnabled?: boolean
  marketplaceSubcommand?: "list" | "add" | "remove" | "update";
  pluginName?: string;
  marketplaceTarget?: string;
  updateAll?: boolean;
}

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