Golden-traffic curation

Fixtures written by hand go stale; real traffic is the truth. Golden curation turns one real event into a permanent test in one click:

• In the panel’s event ring, star ★ an event (or POST /events/golden).
• The runtime re-runs the flow on that event now and captures the actual emits as the expectation.
• What lands is a file: tests/vjs/curated_<flow>_<n>.vjs — input event + expected emits — which vejas-runtime vjs-test (and CI) runs forever.

That closes the expert→CI loop: the domain expert who recognizes a representative case doesn’t write a test — they point at reality, and the platform freezes it. When a flow’s behavior must change, time-travel and canary say what changes against history (changing safely); the curated cases say what must never change.

In a cluster, curation is refused on instances that hold no write access to the root (the cluster guard) — curate where the files live.