Implements ui/PLAN.md Phase 7 end-to-end:
- /login two-step form (email -> code) over the gateway public REST
surface; /lobby placeholder issues the first authenticated
user.account.get and renders the decoded display name.
- SessionStore (Svelte 5 runes) with loading / unsupported / anonymous /
authenticated states; layout-level route guard, browser-not-supported
blocker, and a minimal SubscribeEvents revocation watcher that closes
the active client within 1s on a clean stream end or
Unauthenticated.
- VITE_GATEWAY_BASE_URL + VITE_GATEWAY_RESPONSE_PUBLIC_KEY config plus
AuthError taxonomy in api/auth.ts.
- Vitest (auth-api, session-store, login-page) and Playwright e2e
(auth-flow.spec.ts) on the four configured projects, with a fixture
Ed25519 keypair forging Connect-Web JSON responses.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
KeyStore + Cache TS interfaces with WebCrypto non-extractable Ed25519
keys persisted via IndexedDB (idb), plus thin api/session.ts that
loads or creates the device session at app startup. Vitest unit
tests under fake-indexeddb cover both adapters; Playwright e2e
verifies the keypair survives reload and produces signatures still
verifiable under the persisted public key (gateway round-trip moves
to Phase 7's existing acceptance bullet).
Browser baseline: WebCrypto Ed25519 — Chrome >=137, Firefox >=130,
Safari >=17.4. No JS fallback; ui/docs/storage.md documents the
matrix and the WebKit non-determinism quirk.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Ilia Denisov