Adversarial re-review of the persona-audit commit surfaced two HIGH regressions I'd
introduced plus MED/LOW gaps. All fixed:
HIGH
- Auth privilege escalation: reads are sessionStorage-first, but guest `setAuth` wrote only
localStorage — a resident admin token shadowed a new guest login (guest ran as admin on a
shared device). setAuth/setAdminAuth now DISPLACE the other store so exactly one identity
is resident. Adds unit + e2e regression guards.
- Host dashboard: `exportGenerating` used `||`, so a one-half export failure stuck on
"wird erstellt…" forever and never showed the re-release hint. Changed to `&&`.
MEDIUM
- Locked-upload auto-resume was unreliable (`event-opened` has no reconnect replay and SSE
is down on non-feed pages) — now also resumes on `feed-delta`, which fires on every SSE
reconnect.
- Queue-cap eviction could drop a recoverable locked item (parked as `error` with a live
blob) — now evicts only `done`/`blocked`.
- Host page async-`onMount` leaked SSE handlers if unmounted mid-load — added a `destroyed`
guard before registration.
LOW
- An unparseable 403 body now keeps the blob (reversible) instead of purging it.
- `refreshEventState` is sequence-guarded so a late close-refresh can't clobber a reopen.
- `/export/status` moved out of the all-or-nothing `reload()` so its failure can't blank the
whole host dashboard.
Verified: svelte-check 0 errors, 36 frontend unit tests (incl. new displacement guards).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
811c724685