Method SetCollabRoomManager

internal/server/server.go:677–679

SetCollabRoomManager attaches a Yjs collab RoomManager (PLAN-1248). When set, the /api/v1/collab/{itemID} WebSocket endpoint hands new connections to the manager for op-log replay + fan-out. When nil, the endpoint exists but answers 503 — that's intentional so a self-host build that wants the editor

(rm *collab.RoomManager)

// self-host build that wants the editor without collab can leave
// this unwired without surfacing surprise behaviour.
func (s *Server) SetCollabRoomManager(rm *collab.RoomManager) {
	s.collab = rm
}

// SetWebhookDispatcher attaches a webhook dispatcher for outgoing
// notifications. Delivery goroutines are routed through s.goAsync so they're