Function render_diagram 

pub fn render_diagram(
    input: &str,
    options: RenderOptions,
) -> Result<String, MermaidError>

Render diagram with auto-detection of format

Arguments

• input - Diagram syntax string (Mermaid, State, Pie, or D2)
• options - Rendering options

Returns

• Ok(String) - Rendered diagram as string
• Err(MermaidError) - Parse or layout error