Update constants.ts

Author: 0xsisyfos

src/global/constants.ts

@@ -101,6 +101,8 @@ export const SNIP9_V1_INTERFACE_ID =
   '0x68cfd18b92d1907b8ba3cc324900277f5a3622099431ea85dd8089255e4181';
 export const SNIP9_V2_INTERFACE_ID =
   '0x1d1144bb2138366ff28d8e9ab57456b1d332ac42196230c3a602003c89872';
+export const ADDR_BOUND = 2n ** 251n - MAX_STORAGE_ITEM_SIZE;
+
 
 // Default Configuration
 export const DEFAULT_CONFIG = {