feat: implement freemium restrictions

go/internal/billing/noop.go

@@ -3,6 +3,7 @@ package billing
 import (
 	"context"
 	"errors"
+	"time"
 )
 
 // Noop returns a billing service for binaries that depend on network.Service
@@ -24,3 +25,9 @@ func (noopService) CreatePortalSession(context.Context, string) (string, error)
 }
 func (noopService) SyncSeats(context.Context, string, int) error        { return nil }
 func (noopService) HandleWebhook(context.Context, []byte, string) error { return errNoopBilling }
+func (noopService) GetUsage(context.Context, string) (*Usage, error) {
+	return nil, errNoopBilling
+}
+func (noopService) IncrementDailyUsage(context.Context, string, time.Time) error {
+	return errNoopBilling
+}