feat(statics): add TestingLinearTokenOnboarding (eth:tlto) token

Add TLTO (TestingLinearTokenOnboarding) ERC-20 token on Ethereum
to the @bitgo/statics package. This is a test-only token used to
validate the Linear-ticket execution route of the token-onboarding
plugin. Three additions are made:

- UnderlyingAsset enum in base.ts: 'eth:tlto'
- On-chain ERC-20 entry in erc20Coins.ts (terc20, test network,
  UUID 97753436-903b-4131-82b2-6deea76a5e17,
  contract 0x1234567890abcdef1234567890abcdef12345678)
- OFC entry in ofcErc20Coins.ts (ofcerc20 in tOfcErc20Coins,
  UUID d38204a7-b670-414e-9f58-e2df4798070c, 6 decimals)

No mainnet or staging entries — test environment only.

Ticket: SCAAS-10489
Session-Id: eb0ebe05-2a10-4af2-9f14-fe5557407105
Task-Id: 8c34e3b0-23ce-4aad-8ded-54926accd613

Author: baltiyal

modules/statics/src/base.ts

@@ -2625,6 +2625,7 @@ export enum UnderlyingAsset {
   'eth:nowon' = 'eth:nowon',
   'eth:iwmon' = 'eth:iwmon',
   'eth:melion' = 'eth:melion',
+  'eth:tlto' = 'eth:tlto',
   'eth:tlton' = 'eth:tlton',
   'eth:grndon' = 'eth:grndon',
   'eth:figon' = 'eth:figon',

modules/statics/src/coins/erc20Coins.ts

@@ -15019,4 +15019,12 @@ export const erc20Coins = [
     undefined,
     Networks.test.hoodi
   ),
+  terc20(
+    '97753436-903b-4131-82b2-6deea76a5e17',
+    'eth:tlto',
+    'TestingLinearTokenOnboarding',
+    6,
+    '0x1234567890abcdef1234567890abcdef12345678',
+    UnderlyingAsset['eth:tlto'],
+  ),
 ];

modules/statics/src/coins/ofcErc20Coins.ts

@@ -7219,6 +7219,13 @@ export const tOfcErc20Coins = [
     undefined,
     'tbaseeth'
   ),
+  ofcerc20(
+    'd38204a7-b670-414e-9f58-e2df4798070c',
+    'ofceth:tlto',
+    'TestingLinearTokenOnboarding',
+    6,
+    UnderlyingAsset['eth:tlto'],
+  ),
 ];
 
 function underlyingAssetForSymbol(underlyingAssetValue: string): UnderlyingAsset {