feat(statics): add Hemi Ethereum (hemieth) L2 chain support

Add Hemi Ethereum L2 chain with ETH gas token:
- Add hemieth/themieth coin entries in allCoinsAndTokens
- Add HEMIETH to CoinFamily and UnderlyingAsset enums
- Add HemiEth network classes with chain IDs 43111/743111
- Add OFC entries for ofchemieth/ofcthemieth
- Add explorer API configuration in environments
- Update test fixtures

Ticket: WIN-8747
CECHO-115

Author: manojkumar138

modules/sdk-core/src/bitgo/environments.ts

@@ -296,6 +296,9 @@ const mainnetBase: EnvironmentTemplate = {
       baseUrl: 'https://mainnet.mirrornode.hedera.com/api/v1',
       rpcUrl: 'https://mainnet.hashio.io/api',
     },
+    hemieth: {
+      baseUrl: 'https://explorer.hemi.xyz/api',
+    },
     fluenteth: {
       baseUrl: 'https://testnet.fluentscan.xyz/api/', //TODO: COIN-6478: add mainnet url when available
     },
@@ -483,6 +486,9 @@ const testnetBase: EnvironmentTemplate = {
       baseUrl: 'https://testnet.mirrornode.hedera.com/api/v1',
       rpcUrl: 'https://testnet.hashio.io/api',
     },
+    hemieth: {
+      baseUrl: 'https://testnet.explorer.hemi.xyz/api',
+    },
     fluenteth: {
       baseUrl: 'https://testnet.fluentscan.xyz/api/',
     },

modules/statics/src/allCoinsAndTokens.ts

@@ -2285,6 +2285,42 @@ export const allCoinsAndTokens = [
       CoinFeature.EVM_UNSIGNED_SWEEP_RECOVERY,
     ]
   ),
+  account(
+    '68d22683-a8f2-47b3-8446-92e02a1963ae',
+    'hemieth',
+    'Hemi Ethereum',
+    Networks.main.hemieth,
+    18,
+    UnderlyingAsset.HEMIETH,
+    BaseUnit.ETH,
+    [
+      ...EVM_FEATURES,
+      CoinFeature.SHARED_EVM_SIGNING,
+      CoinFeature.SHARED_EVM_SDK,
+      CoinFeature.EVM_COMPATIBLE_IMS,
+      CoinFeature.EVM_COMPATIBLE_UI,
+      CoinFeature.EVM_COMPATIBLE_WP,
+      CoinFeature.SUPPORTS_ERC20,
+    ]
+  ),
+  account(
+    'df0007d9-974b-4099-bf37-9dc59399c058',
+    'themieth',
+    'Testnet Hemi Ethereum',
+    Networks.test.hemieth,
+    18,
+    UnderlyingAsset.HEMIETH,
+    BaseUnit.ETH,
+    [
+      ...EVM_FEATURES,
+      CoinFeature.SHARED_EVM_SIGNING,
+      CoinFeature.SHARED_EVM_SDK,
+      CoinFeature.EVM_COMPATIBLE_IMS,
+      CoinFeature.EVM_COMPATIBLE_UI,
+      CoinFeature.EVM_COMPATIBLE_WP,
+      CoinFeature.SUPPORTS_ERC20,
+    ]
+  ),
 
   erc721Token(
     'a7604e03-7f40-41f0-8efa-2e7673ac2a9f',

modules/statics/src/base.ts

@@ -66,6 +66,7 @@ export enum CoinFamily {
   HASH = 'hash', // Provenance
   HBAR = 'hbar',
   HBAREVM = 'hbarevm', // Hedera EVM coin
+  HEMIETH = 'hemieth', // Hemi Ethereum L2
   ICP = 'icp',
   INITIA = 'initia',
   INJECTIVE = 'injective',
@@ -597,6 +598,7 @@ export enum UnderlyingAsset {
   HASH = 'hash', // Provenance
   HBAR = 'hbar', // Hedera main coin
   HBAREVM = 'hbarevm', // Hedera EVM coin
+  HEMIETH = 'hemieth', // Hemi Ethereum L2
   ICP = 'icp',
   IP = 'ip', // Story Chain
   INITIA = 'initia',

modules/statics/src/coins/ofcCoins.ts

@@ -293,6 +293,22 @@ export const ofcCoins = [
     UnderlyingAsset.LINEAETH,
     CoinKind.CRYPTO
   ),
+  ofc(
+    'bdab1ab0-215d-4d59-b698-7cc624e5027a',
+    'ofchemieth',
+    'Hemi Ethereum',
+    18,
+    UnderlyingAsset.HEMIETH,
+    CoinKind.CRYPTO
+  ),
+  tofc(
+    'bc005b8a-dfb5-42db-92ad-92db5cb5b7d2',
+    'ofcthemieth',
+    'Hemi Ethereum Testnet',
+    18,
+    UnderlyingAsset.HEMIETH,
+    CoinKind.CRYPTO
+  ),
   ofc(
     'f43afacc-0db3-4a8a-a987-ff9d93e08cb4',
     'ofcjovayeth',

modules/statics/src/networks.ts

@@ -2352,6 +2352,24 @@ class HederaEVM extends Mainnet implements EthereumNetwork {
   nativeCoinOperationHashPrefix = '295';
 }
 
+class HemiEth extends Mainnet implements EthereumNetwork {
+  name = 'Hemi Ethereum';
+  family = CoinFamily.HEMIETH;
+  explorerUrl = 'https://explorer.hemi.xyz/tx/';
+  accountExplorerUrl = 'https://explorer.hemi.xyz/address/';
+  chainId = 43111;
+  nativeCoinOperationHashPrefix = '43111';
+}
+
+class HemiEthTestnet extends Testnet implements EthereumNetwork {
+  name = 'Testnet Hemi Ethereum';
+  family = CoinFamily.HEMIETH;
+  explorerUrl = 'https://testnet.explorer.hemi.xyz/tx/';
+  accountExplorerUrl = 'https://testnet.explorer.hemi.xyz/address/';
+  chainId = 743111;
+  nativeCoinOperationHashPrefix = '743111';
+}
+
 class PlumeTestnet extends Testnet implements EthereumNetwork {
   name = 'PlumeTestnet';
   family = CoinFamily.PLUME;
@@ -2478,6 +2496,7 @@ export const Networks = {
     hash: Object.freeze(new Hash()),
     hedera: Object.freeze(new Hedera()),
     hederaEVM: Object.freeze(new HederaEVM()),
+    hemieth: Object.freeze(new HemiEth()),
     icp: Object.freeze(new Icp()),
     ip: Object.freeze(new IP()),
     initia: Object.freeze(new Initia()),
@@ -2595,6 +2614,7 @@ export const Networks = {
     hash: Object.freeze(new HashTestnet()),
     hedera: Object.freeze(new HederaTestnet()),
     hederaEVM: Object.freeze(new HederaEVMTestnet()),
+    hemieth: Object.freeze(new HemiEthTestnet()),
     icp: Object.freeze(new IcpTestnet()),
     ip: Object.freeze(new IPTestnet()),
     initia: Object.freeze(new InitiaTestnet()),

modules/statics/test/unit/fixtures/expectedColdFeatures.ts

@@ -96,6 +96,7 @@ export const expectedColdFeatures = {
     'fluenteth',
     'hash',
     'hbarevm',
+    'hemieth',
     'icp',
     'ip', // Story chain
     'initia',
@@ -164,6 +165,7 @@ export const expectedColdFeatures = {
     'tflow',
     'tfluenteth',
     'thbarevm',
+    'themieth',
     'tjovayeth',
     'tog',
     'tokbxlayer',