chore: add context and error handling

graph/schema.helpers.go

@@ -1,15 +1,17 @@
 package graph
 
 import (
+	"context"
+
 	"gitlab.com/unboundsoftware/eventsourced/eventsourced"
 
 	"gitlab.com/unboundsoftware/schemas/domain"
 	"gitlab.com/unboundsoftware/schemas/graph/model"
 )
 
-func (r *Resolver) fetchSubGraph(subGraphId string) (*domain.SubGraph, error) {
+func (r *Resolver) fetchSubGraph(ctx context.Context, subGraphId string) (*domain.SubGraph, error) {
 	subGraph := &domain.SubGraph{BaseAggregate: eventsourced.BaseAggregateFromString(subGraphId)}
-	_, err := r.handler(subGraph)
+	_, err := r.handler(ctx, subGraph)
 	if err != nil {
 		return nil, err
 	}