node Renderer
inline fun <N : Node> KotlinxHtmlRenderer.Configuration.nodeRenderer(crossinline block: KotlinxHtmlNodeRendererContext.(N) -> Unit)
Registers a handler for exactly N; the first registration for a node type wins. The receiver belongs to the current render. Captured mutable state in block is shared; use KotlinxHtmlRenderer.Configuration.nodeRendererFactory for state local to each render or for lifecycle hooks. Custom handlers remain responsible for URL processing.