fix: batch NFT ownership checks via Multicall3

packages/assets-controllers/CHANGELOG.md

@@ -16,7 +16,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- **BREAKING:** `NftController` no longer uses the `AssetsContractController:getERC721OwnerOf` and `AssetsContractController:getERC1155BalanceOf` messenger actions for ownership checks; these have been removed from `AllowedActions` ([#8281](https://github.com/MetaMask/core/pull/8281))
+  - Consumers that construct the `NftController` messenger and register handlers for these two actions must remove them from their allowed actions list.
+- **BREAKING:** Removed the `checkAndUpdateSingleNftOwnershipStatus` method from `NftController` ([#8281](https://github.com/MetaMask/core/pull/8281))
+  - Use `checkAndUpdateAllNftsOwnershipStatus` instead, which now batches all ownership checks via Multicall3 in a single RPC request.
 - **BREAKING:** `AssetListState` type now requires a top-level `selectedAccountGroup` property, matching the updated `AccountTreeControllerState` shape where `selectedAccountGroup` was moved out of `accountTree` ([#8245](https://github.com/MetaMask/core/pull/8245))
+- `NftController` NFT ownership checks (`isNftOwner`, `checkAndUpdateAllNftsOwnershipStatus`) now use Multicall3 to batch ERC-721 `ownerOf` and ERC-1155 `balanceOf` calls into fewer RPC requests, falling back to individual calls on unsupported chains ([#8281](https://github.com/MetaMask/core/pull/8281))
 - Bump `@metamask/keyring-api` from `^21.5.0` to `^21.6.0` ([#8259](https://github.com/MetaMask/core/pull/8259))
 - `fetchTokenPrices` to use `SPOT_PRICES_SUPPORT_INFO` as override - use if defined - instead of fallback for native token price ([#8258](https://github.com/MetaMask/core/pull/8258))
 - Bump `@metamask/transaction-controller` from `^63.0.0` to `^63.1.0` ([#8272](https://github.com/MetaMask/core/pull/8272))