Add item field to OrderValidationEventPayload (#491)

* Add item field to OrderValidationEventPayload for type safety

This adds the item field (which includes nft_id) to OrderValidationEventPayload, enabling type-safe access to NFT identifiers in order invalidate and revalidate events. The nft_id follows the format: "chain/contract_address/token_id".

Note: CollectionOfferEventPayload was intentionally not modified as collection offers apply to any NFT in a collection rather than a specific NFT.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* Bump version from 0.2.1 to 0.2.2

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

---------

Co-authored-by: Claude <[email protected]>

Author: ryanio

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opensea/stream-js",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "A TypeScript SDK to receive pushed updates from OpenSea over websocket",
   "license": "MIT",
   "author": "OpenSea Developers",
@@ -29,10 +29,10 @@
     "eslint": "eslint . --max-warnings 0 --ext .js,.ts --fix",
     "lint:check": "concurrently \"npm run check-types\" \"npm run eslint\" \"npm run prettier:check\" \"npm run prettier:check:package.json\"",
     "prepare": "husky install",
-    "prepublish": "npm run build",
     "prettier:check": "prettier --check .",
     "prettier:check:package.json": "prettier-package-json --list-different",
     "prettier:fix": "prettier --write . && prettier-package-json --write package.json",
+    "prepublish": "npm run build",
     "test": "jest"
   },
   "sideEffects": false,

src/types.ts

@@ -248,6 +248,7 @@ export interface OrderValidationEventPayload {
   collection: {
     slug: string;
   };
+  item: BaseItemType;
 }
 
 export type OrderValidationEvent =