The Playwright suite had no linter and no formatter — only tsc. Add flat-config ESLint
(typescript-eslint, type-aware) and Prettier (2-space, matching the suite's style).
Rules keep the ones that catch real TEST bugs and drop the noise:
- no-floating-promises KEPT — an un-awaited request/assertion can let a test end before it runs,
passing vacuously. It caught one: the SSE reader loop in sse-listener is now explicitly `void`.
- no-unused-vars KEPT — caught three dead bindings (an unused adminToken fixture arg, an unused
`api` arg, an unused JPEG_MAGIC import), all removed.
- no-explicit-any OFF — all test code; `any` is the honest type for an untyped res.json() body or
a page.evaluate() return.
- no-empty-pattern OFF — Playwright's dependency-free fixtures are `async ({}, use) => {}`.
Refactor: `const BASE = process.env.E2E_FRONTEND_URL ?? '...'` was redeclared verbatim in 23
files — extracted to helpers/env.ts and imported, so a port/scheme change is one edit not a sweep.
Then `prettier --write`. Verified: eslint clean, tsc clean, prettier clean, desktop suite 210
passed / 1 skipped. (One mobile spec flaked once under retries:0 — a pre-existing cross-test
reflow-timing vector from the flakiness audit, not this change: the each-key edit is stable across
16 isolated runs and a clean full mobile re-run.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Security audit follow-up. No Critical/High existed; these close the
Medium/Low findings.
F1 [Med] Host privilege boundary: a host could demote a peer host to
guest and then ban / PIN-reset (→ account takeover via /recover) them,
because the ban/pin-reset peer guards key off the target's *current*
role. set_role now blocks a non-admin from demoting a host.
F2 [Med] Moderation now revokes preview/thumbnail access: they are served
through visibility-checked aliases (/api/v1/upload/{id}/{preview,
thumbnail}) that filter soft-deleted / ban-hidden uploads, and direct
/media/previews|thumbnails is 404-blocked. Feed emits the gated URLs;
Caddy keeps them privately cacheable (max-age=300, short so moderation
revokes promptly — the live feed already evicts cards via SSE). Uses a
lean find_visible_media() (paths+mime only) on the media hot path.
F3 [Med/Low] npm audit fix: svelte 5.55.1→5.56.4 (SSR-XSS advisories),
devalue 5.6.4→5.8.1 (DoS). Prod deps: 0 vulnerabilities.
F4 [Low] /recover no longer leaks account existence: unknown display name
returns the same 401 as a wrong PIN, and runs a dummy bcrypt verify so
timing matches — closing the enumeration + timing oracle.
F5 [Low] SSE streams re-validate the session every ~60s and close once it
is logged out / expired, instead of running until client disconnect.
F6 [Info] X-Content-Type-Options: nosniff set at the app layer on all
media responses (defense-in-depth alongside the edge).
Tests: new e2e specs for F1 (host cannot demote peer host), F2 (preview
gated + 404 after delete + direct /media blocked), F4 (uniform 401).
40 backend unit tests + 182 e2e passing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
