[feat]: MCP server support different SHADCN_CLI_COMMAND

[GitHubGeek]

Feature description

In packages/shadcn/src/mcp/utils.ts, SHADCN_CLI_COMMAND is hardcoded as shadcn@latest.

When running the MCP on a project using shadcn-vue, the resulting command from get_add_command_for_items would fail to run, because the command needs to be shadcn-vue@latest

Thanks for considering this feature request.

Affected component/components

No response

Additional Context

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