- Wire ThrottlerModule to a Redis-backed storage (shared across API
instances) using @nest-lab/throttler-storage-redis.
- Add FeatureListingThrottlerGuard that tracks per-user when JWT is
present, falling back to the real client IP behind the reverse proxy —
keeps per-user and per-IP buckets independent.
- Apply @Throttle({ default: { limit: 10, ttl: 60_000 } }) + the guard
to POST /listings/:id/feature and document 429 in Swagger.
- Integration test (feature-listing-throttle.integration.spec.ts)
verifies: 10 reqs pass / 11th returns 429 with Retry-After, separate
IPs keep their own quotas, and the tracker key logic.
Co-Authored-By: Paperclip <noreply@paperclip.ing>