HostEventRequest
`HostEventRequest : `
Per-context request shapes for events whose payload varies by
/**
Resolves the typed request payload for a host event.
Resolution order:
1. Explicitly typed request in HostEventRequestMap
2. UI passthrough backed contract (EmbedApiHostEventMapping)
3. any (event not audited/typed yet — backward compatible)
Requests are the cross-context superset today. The per-context *Request
interfaces (e.g. OpenFilterLiveboardRequest) document how the shape
narrows by context; a later release may thread the caller’s context to
enforce it.
Defined in : contracts/host-event-contracts.ts