[Bccorb]

Documents @seamless-auth/angular 0.1.0, released from fells-code/seamless-auth-js#173 and #174 (fells-code/seamless-auth-js#170).

• New page /build/angular-sdk, in Build after Next.js. It covers:
  • configuration with provideSeamlessAuth and its options
  • the functional guards
  • the SeamlessAuth service (signals, observables, actions)
  • the built-in screens and their routes
  • styling with the shared --seamless-* tokens
  • custom screens over the @seamless-auth/client flows
  • server rendering
• start/overview: Angular is listed in the cookie-transport bullet and the package table, and is removed from "Your frontend is not React or React Native".
• build/ecosystem: Angular is added to the mental model, the package table and "How The Pieces Fit". The compatibility matrix is refreshed to 2026-10-08 (api 0.18.0, core and express 0.20.0, fastify 0.11.1, nextjs 0.4.0, client 0.4.0, react 0.15.3, react-native 0.2.3, angular 0.1.0, cli 0.21.0).

Checks (real output):

npm run lint          # eslint, check-no-h1, check-sdk-results: clean
npm run typecheck     # Result (11 files): 0 errors, 0 warnings
npx prettier --check  # All matched files use Prettier code style!
npm run build         # Complete! (dist/build/angular-sdk/index.html built)
npm run check:matrix  # All 15 matrix versions match their latest release.

Not changed here:

• "What The CLI Scaffolds" still describes seamless-cli 0.20.0's pins. It needs its own refresh from the 0.21.0 source.
• "Your backend is not Node.js" predates the Go, Rust and Python adapters.