v0.12.0

Added

• Add Vize.CSS.collect_urls/2 and Vize.CSS.rewrite_urls/3 for parser-backed CSS URL source rewriting without CSS AST print round-trips.
• Add bang variants for CSS URL helpers.
• Add structured Vize.Error, Vize.Diagnostic, source range/location, CSS URL, Vapor result, and Croquis structs.
• Add structured Vapor diagnostics with diagnostics: true and template_syntax: :standard | :quirks options.
• Add Vize.analyze_sfc/2 and Vize.analyze_sfc!/2 returning %Vize.Croquis{} semantic summaries.

Changed

• Bump upstream Vize crates 0.112 → 0.206.
• Vize.compile_vapor/2 now returns %Vize.Vapor.Result{}.