v0.11.0

Breaking

• Bump upstream Vize crates 0.76 → 0.109.
• CSS APIs are namespaced under Vize.CSS; root-level compile_css/2, bundle_css/2, and AST helpers are deprecated compatibility delegates.
• CSS AST printing uses Vize.CSS.print_ast/2; the earlier local generate_css_from_ast naming was dropped before release.

Added

• Add Vize.CSS.parse_ast/2 and Vize.CSS.parse_ast!/2 — parse CSS into a LightningCSS-backed AST represented as Elixir maps/lists.
• Add Vize.CSS.print_ast/2 and Vize.CSS.print_ast!/2 — print CSS from a transformed AST.
• Add Vize.CSS.walk/2, prewalk/2, prewalk/3, postwalk/2, postwalk/3, and collect/2 for OXC-style AST traversal.
• Add strict Reach checks to CI: reach.check --dead-code --smells --strict.

Changed

• Update dev/test tooling: Credo, ExDNA, ExDoc, ExSlop, Jason, and Reach.
• Encode/decode CSS AST values across the NIF boundary as BEAM terms instead of JSON strings.