Pathway events

Clinical pathways associated with an episode.

Event type	Description	Identifiers
`pathway.created`	A pathway was created	`pathwayId`, `patientId`, `episodeId`
`pathway.updated`	A pathway was updated (including assigned clinician, status, and metadata changes). When metadata values change, `pathway.metadata.updated` is also emitted.	`pathwayId`, `patientId`, `episodeId`
`pathway.deleted`	A pathway was deleted	`pathwayId`, `patientId`, `episodeId`
`pathway.metadata.updated`	One or more pathway metadata values were updated	`pathwayId`, `patientId`, `episodeId`, `changedKeys` (JSON-encoded array of the metadata keys whose values changed)
`pathway.booking.assigned`	A booking was assigned to a pathway	`pathwayId`, `bookingId`, `patientId`
`pathway.booking.unassigned`	A booking was unassigned from a pathway	`pathwayId`, `bookingId`, `patientId`
`pathway.clinicalReport.assigned`	A clinical report was assigned to a pathway	`pathwayId`, `clinicalReportId`, `patientId`
`pathway.clinicalReport.unassigned`	A clinical report was unassigned from a pathway	`pathwayId`, `clinicalReportId`, `patientId`