F3: BullMQ 5.x rejects custom job IDs containing `:` (collides with internal
Redis-key namespacing). GDPR export crashed with "Custom Id cannot contain :".
Switched to dash separator. GDPR Article 15 right-to-access now functional.
F4: Redis was configured with `allkeys-lru` eviction in both docker-compose.yml
and docker-compose.prod.yml. BullMQ explicitly requires `noeviction` —
otherwise queue keys can be evicted under memory pressure and jobs vanish
silently. Switched to noeviction with comment pointing at the audit finding.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Address the highest-leverage CRITICAL/HIGH/MEDIUM items from the
build-auditor that weren't already covered by Wave 1 (EMAIL_REDIRECT_TO
production guard) or the existing `.dockerignore`.
**C3 — socket.io in standalone trace**
- Add socket.io + @socket.io/redis-adapter to serverExternalPackages
in next.config so the build system sees the dependency (the custom
server is the only importer, no Next route touches it).
- Belt-and-braces: COPY both from the deps stage into the runner stage
of Dockerfile, mirroring the audit's suggested fix.
**H1 — CSP `'unsafe-inline'` in prod**
- Audit recommends nonce-based scripts. Implementing nonces requires
middleware that emits a per-request nonce + threading it through
Next's RSC bootstrap + Server Actions. Out of scope for this wave;
documented the rationale at the CSP definition so the next pass
knows where to start, and noted that the in-the-wild XSS surfaces
are already closed via escapeHtml/escapeUrl in the email + webhook
pipelines.
**H2 — NEXT_PUBLIC_APP_URL validation**
- Add `NEXT_PUBLIC_APP_URL: z.string().url()` to the env schema so a
missing build-time value fails validation instead of silently
inlining the empty string into the client bundle and breaking
multi-origin deploys.
**M3 — serverExternalPackages completeness**
- Add imapflow, mailparser, pdf-lib, sharp, tesseract.js,
@react-pdf/renderer, unpdf — all heavy native/CJS-leaning
server-only deps that should not be route-traced.
**H5 — healthcheck PORT templatization**
- docker-compose.{,prod.}yml: replace hardcoded
`http://localhost:3000/api/health` with `${PORT:-3000}` so
overriding PORT via .env doesn't put the container into a
restart loop.
**M9 — NODE_ENV=production in builder**
- Dockerfile builder stage now sets NODE_ENV=production above
`RUN pnpm build` so the prod-only branches in next.config
(CSP, etc.) compile deterministically.
**M7 — HEALTHCHECK directive in image**
- Add image-level HEALTHCHECK to the app Dockerfile (mirrors the
one in Dockerfile.worker for Redis) so the image is
self-describing for non-compose orchestrators.
Items already addressed prior to this wave:
- C1 (.dockerignore exists, comprehensive)
- C2 (EMAIL_REDIRECT_TO production refusal — Wave 1)
- H4 (compose resource + log limits — already in prod compose)
Tests 1315/1315 throughout.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
