Add Solana native staking MERGE transaction validation

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@yieldxyz/shield",
-  "version": "1.4.1",
+  "version": "1.5.0",
   "description": "Zero-trust transaction validation library for Yield.xyz integrations.",
   "packageManager": "pnpm@10.33.1",
   "engines": {
@@ -81,4 +81,4 @@
       "esbuild"
     ]
   }
-}
+}

src/json/schema.ts

@@ -57,6 +57,11 @@ export const requestSchema = {
           items: { type: 'string', maxLength: 256 },
           maxItems: 100,
         },
+        stakeAccounts: {
+          type: 'array',
+          items: { type: 'string', maxLength: 128 },
+          maxItems: 100,
+        },
       },
     },
     context: {

src/types/index.ts

@@ -32,6 +32,11 @@ export type ActionArguments = {
   nominatorAddress?: string;
   receiverAddress?: string;
   nftIds?: string[];
+  /**
+   * Solana MERGE (optional): signer-controlled stake account pubkeys.
+   * When provided, destination and source of every merge instruction must be in this list.
+   */
+  stakeAccounts?: string[];
 };
 
 export interface FeeConfiguration {