refactor: unit testable units and cleaner dep injection

go/cmd/memberreconciler/main.go

@@ -18,7 +18,6 @@ import (
 	"time"
 
 	"cloud.google.com/go/firestore"
-	"github.com/flowy-live/llink/internal/billing"
 	"github.com/flowy-live/llink/internal/db"
 	"github.com/flowy-live/llink/internal/human"
 	"github.com/flowy-live/llink/internal/network"
@@ -41,8 +40,7 @@ func main() {
 	defer fs.Close()
 
 	humanSvc := human.NewService(db.Pool())
-	// billing/aero/fs unused here — we only call ListAllMemberships.
-	networkSvc := network.NewService(db.Pool(), nil, billing.Noop(), nil)
+	networkSvc := network.NewReader(db.Pool())
 
 	started := time.Now()
 	written, scanned, err := reconcile(ctx, fs, humanSvc, networkSvc)
@@ -61,14 +59,14 @@ func reconcile(
 	ctx context.Context,
 	fs *firestore.Client,
 	humanSvc human.Service,
-	networkSvc network.Service,
+	networkReader network.Reader,
 ) (written, scanned int, err error) {
 	humans, err := humanSvc.ListAll(ctx)
 	if err != nil {
 		return 0, 0, err
 	}
 
-	memberships, err := networkSvc.ListAllMemberships(ctx)
+	memberships, err := networkReader.ListAllMemberships(ctx)
 	if err != nil {
 		return 0, 0, err
 	}