feat(verify): run the browser specs against an Angular app

[Bccorb]

Runs the browser conformance specs against an Angular app, for fells-code/seamless-auth-react#170 (the browser project item) under fells-code/seamless-auth-api#371.

What changes

New layers. angular and angular-dev Playwright projects point at the existing ./react specs, with no copy of the suite. @seamless-auth/angular keeps the React screens' accessible names, so the register, email OTP, magic link, passkey register and login, OAuth and logout specs run unchanged.

Reference app in verify/angular-app:

• Angular 22, built on @seamless-auth/angular, with its own Dockerfile. The runtime target is nginx with /health and a runtime config.js. The dev target is ng serve.
• The compose services are angular and angular-dev, with CI cache scopes.

Routing in the verify command:

• A web template whose verify.project or framework is angular uses the new runtime. This is ready for seamless-templates#111.
• Until one exists, the reference app runs.
• SEAMLESS_ANGULAR_DIR points the run at another Angular app.

--local packs @seamless-auth/client and the built @seamless-auth/angular (from packages/angular/dist, which is what npm publishes) into verify/angular-vendor.

The matrix reporter knows the new layers, and the summary lists the Angular version.

fix(verify), a separate commit. Global setup checked the web app's /health on localhost. Node resolves that to ::1 first, while the browser is pinned to 127.0.0.1. A dev server left running on [::1]:5173 therefore answered the check while the container under test was still starting, and the first spec failed with ERR_CONNECTION_RESET. The check now uses the address the browser uses.

Checks (real output)

npx tsc --noEmit -p .     # no errors
npx vitest run            # Test Files 56 passed | 1 skipped (57) / Tests 1178 passed | 4 skipped (1182)

node dist/index.js verify --local --dev was run with:

• this branch
• seamless-auth-api, seamless-auth-server and seamless-templates at origin/main
• seamless-auth-react at feat(angular): add @seamless-auth/angular bindings seamless-auth-react#173

All 9 layers passed:

✔  API / adapter                              45.6s
✔  Web · react-vite (all flows)               5.4s
✔  Web (dev) · react-vite (all flows)         5.6s
✔  Web · react-oauth (@oauth)                 849ms
✔  Web (dev) · react-oauth (@oauth)           983ms
✔  Web · angular-reference (all flows)        5.0s
✔  Web (dev) · angular-reference (all flows)  7.8s
✔  Full-stack · nextjs (all flows)            8.3s
✔  Full-stack (dev) · nextjs (all flows)      12.0s

Merge order

This is a draft until fells-code/seamless-auth-react#173 is merged and @seamless-auth/angular is published.

• Conformance CI: it checks out the SDK at main, and without the Angular package the reference app has nothing to install.
• Released smoke: it installs the published package.