vitre MCP Server

From the README

# Vitre

**WebView automation for Kotlin Multiplatform.** Describe what you want done to a page as a list of
steps, then run it inside an embedded WebView on Android, iOS and the desktop: from your app, from
a test, or from an LLM agent over the Model Context Protocol or Koog.

```kotlin
val workflow = workflow("hn-top-story", "Hacker News top story") {
    navigate("https://news.ycombinator.com/")
    waitFor(".titleline > a", timeoutMs = 15_000)
    extract(".titleline > a", into = "headline")
    extract(".titleline > a", into = "url", from = Source.Attribute("href"))
}

WorkflowEngine(controller).run(workflow).collect { event ->
    if (event is WorkflowEvent.Completed) println(event.variables["headline"])
}
```

The same vocabulary is available four ways: as the Kotlin DSL above, as a Compose composable you
drop into a screen, and, for an agent that has never seen the page, as MCP tools or as Koog tools.
Those last two are two deliveries of one set of semantics rather than two imp