Layout components now self-resolve context (cart-mini, auth-menu, nav-tree,
rights, URLs) via new IO primitives (root-header-ctx, select-colours,
account-nav-ctx, app-rights) and defmacro wrappers (~root-header-auto,
~auth-header-row-auto, ~root-mobile-auto). This eliminates _ctx_to_env(),
HELPER_CSS_CLASSES, and verbose :key threading across all 10 services.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase 4 (Test): Update ~test-layout-full and ~test-detail-layout-full defcomps
to use ~root-header with env free variables. Switch render functions to
render_to_sx_with_env.
Phase 5 (Cart): Convert cart-page, cart-admin, and order render functions.
Update cart .sx layout defcomps to use ~root-header from free variables.
Phase 6 (Blog): Convert all 7 blog layouts (blog, settings, sub-settings x5).
Remove all root_header_sx calls from blog.
Phase 7 (Market): Convert market and market-admin layouts plus browse/product
render functions. Remove root_header_sx import.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
