Function to_html 

pub fn to_html(entry: Option<&str>, title: &str, editor: Option<&str>) -> String

Render the pipeline rooted at entry (or the alphabetically first jig if None) as a complete HTML document. title is shown in the page header and <title> tag.

editor is an optional URL template containing {path} and {line} placeholders. When set, the sidebar’s file location becomes a link using the resolved template; when None, it renders as plain text. Common templates:

• VS Code / Cursor / Windsurf: vscode://file/{path}:{line}
• VSCodium: vscodium://file/{path}:{line}
• JetBrains IDEs: idea://open?file={path}&line={line}
• Sublime Text: subl://{path}:{line}
• TextMate: txmt://open/?url=file://{path}&line={line}