Home Assistant 2026.3+ serves brand icons/logos for custom integrations
from a local brand/ directory before falling back to the CDN (see
developers.home-assistant.io/blog/2026/02/24/brands-proxy-api). Copied
Samsung's existing icon/logo assets from home-assistant/brands'
core_brands/samsung so the integration shows proper branding instead of
a placeholder. No manifest.json change needed -- has_branding is
auto-detected from the directory's presence.