fix: return 32-byte block hash from eth_getFilterChanges to ensure EVM compatibility

Signed-off-by: Javier Roman <[email protected]>

Author: romangzz

packages/relay/src/lib/services/ethService/ethFilterService/FilterService.ts

@@ -3,7 +3,7 @@
 import { ConfigService } from '@hashgraph/json-rpc-config-service/dist/services';
 import { Logger } from 'pino';
 
-import { generateRandomHex } from '../../../../formatters';
+import { generateRandomHex, toHash32 } from '../../../../formatters';
 import { MirrorNodeClient } from '../../../clients';
 import constants from '../../../constants';
 import { JsonRpcError, predefined } from '../../../errors/JsonRpcError';
@@ -241,7 +241,7 @@ export class FilterService implements IFilterService {
           : await this.common.getLatestBlockNumber(requestDetails),
       );
 
-      result = result?.blocks?.map((r) => r.hash) || [];
+      result = result?.blocks?.map((r) => toHash32(r.hash)) || [];
     } else if (this.supportedTypes.indexOf(filter.type) === -1) {
       throw predefined.UNSUPPORTED_METHOD;
     }