v1.4.0 · Webhooks for real-time job subscriptions

• ▸New subscription plan ($89/mo) delivers job-created events via HTTPS webhook within 60s of first-seen.
• ▸HMAC-SHA256 signature on every delivery; rotate secret at any time.
• ▸Per-subscription filter config: role, seniority, geo, remote-only.
• ▸Retry ladder: 30s → 5m → 1h → 6h → give up (4 attempts).

Real-time job delivery was the number-one subscription request from our beta cohort. v1.4.0 ships the full webhook delivery pipeline — HMAC-signed payloads, configurable retries, and a per-subscription filter language. Existing customers can upgrade in the dashboard; new customers can sign up at /datasets/jobs.