- bakery: strip -x86_64 / -aarch64 / -arm64 / -armv7 suffix when placing
binary so `breadcrumbs-x86_64` installs as `breadcrumbs`
- gen-index.sh: GH_BASE was "github.com/Breadway" but repo slugs already
include the org, producing doubled paths; change to "github.com"
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>