Further scaffolding

core/data/egress.go

@@ -0,0 +1,18 @@
+package data
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+)
+
+type Egress interface {
+	Name() string
+	Configure(cfg map[string]any) error
+	Connect(ctx context.Context, actions EgresActions) error
+	Disconnect(ctx context.Context) error
+}
+
+type EgresActions interface {
+	Subscribe(ctx context.Context, namespace string, id uuid.UUID) (<-chan Envelope, func(), error)
+}