v0.5.1

Published to npm as customdomain-js@0.5.1 and @customdomain/react@0.5.1, with provenance.

Ported byte identical from the product monorepo's packages/sdk/src at 07a9358. packages/react/src
is unchanged.

Changed

• customdomain-js: both widget iframes (the one open() and purchaseDomain() create, and the
  one loadSharedFlow() creates) now carry allow="clipboard-write", so the widget's Copy buttons
  (DNS records, the AI prompt) write to the clipboard directly from the cross-origin frame instead of
  through a fallback. It is write only: the widget cannot read the clipboard.
• customdomain-js: the three doc comments that ship in the type definitions (on OpenConfig,
  theme and apiBase) now use the CustomDomain™ brand.
• @customdomain/react: no source change. It depends on customdomain-js@0.5.1.

Full changelog: CHANGELOG.md · Diff: v0.5.0...v0.5.1