Stamp a ledger operation with the caller the runner proved for the call in flight it names, refusing another module's call or one not in flight; serve the ledger calls on the pipe (issue 1966 T5)

node-tools/internal/runtime/busstate.go

@@ -65,6 +65,9 @@ func (b *moduleBus) BusState(method string, params json.RawMessage) (json.RawMes
 		if err = decode(method, params, &r); err == nil {
 			answer, err = conn.WorkQueueDead(b.module, r)
 		}
+	case buscalls.LedgerApply, buscalls.LedgerGet, buscalls.LedgerHistory, buscalls.LedgerQuery, buscalls.LedgerRebuild,
+		buscalls.LedgerReindex, buscalls.LedgerSnapshot, buscalls.LedgerLag:
+		answer, err = b.ledgerCall(method, params)
 	default:
 		return nil, fmt.Errorf("the runtime answers no %s", method)
 	}
@@ -89,6 +92,8 @@ func (b *moduleBus) BusStateWatch(method string, params json.RawMessage, deliver
 			}
 			return deliver(raw)
 		})
+	case buscalls.LedgerWatch:
+		return b.ledgerWatch(params, deliver)
 	}
 	return nil, fmt.Errorf("the runtime answers no %s", method)
 }