Function lower_blog_ast_lenient 

pub fn lower_blog_ast_lenient(
    source: &SourceFile,
    inputs: impl IntoIterator<Item = String>,
) -> Result<BlockGraph, ParseError>

Lower editor drafts with checked geometry/syntax and lenient actions. Constraint failures remain in BlockGraph::action_graph_error.

Errors

Returns an error if geometry, names, or syntax cannot be lowered safely.