The frontend had no JS/TS linter — only svelte-check. Add flat-config ESLint (typescript-eslint
+ eslint-plugin-svelte) and Prettier (tabs/single-quote, matching the existing style).
Rules encode "catch bugs, not enforce taste":
- svelte/require-each-key KEPT — it is the exact bug class as the feed mis-tap fix. Fixed every
flagged block: keyed activeFilters, filteredUsers, stagedFiles (by previewUrl), captionTags,
admin tabs/jobs/users, the export-viewer suggestions/filters/comments, and the static skeleton
loops.
- svelte/prefer-svelte-reactivity KEPT — inline-disabled only the verified-safe sites (a local
freq Map in a $derived.by, throwaway URLSearchParams query builders), with a reason each.
- svelte/no-navigation-without-resolve OFF — wants resolve() around every goto()/href; taste, not
a bug, and pure churn.
- svelte/no-unused-svelte-ignore OFF — those comments are consumed by svelte-check, which ESLint
can't see, so it wrongly calls them unused; removing them would reintroduce a11y warnings.
- no-explicit-any OFF for *.test.ts only (partial fixtures legitimately use any).
Real code fixes beyond keys: removed a dead jobLabel(), an unused ViewerComment import and unused
catch binding, an unused scroll-lock arg, and replaced an empty interface with a type alias.
Then `prettier --write` (54 files). Formatting only. Verified: eslint clean, svelte-check 0 errors,
vitest 46 passed, vite build succeeds.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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>