added TVL index for ptb

Author: manojdv

projects/helper/chains.json

@@ -331,6 +331,7 @@
   "proton",
   "provenance",
   "pryzm",
+  "ptb",
   "pulse",
   "q",
   "qom",

projects/ptb/index.js

@@ -0,0 +1,28 @@
+const { sumTokensExport } = require('../helper/sumTokens')
+
+const ETHEREUM_STAKING_CONTRACT = '0x0e9bD42dE657fF590d214CcC8d4f94B77D2BD908';
+const ETH = '0x0000000000000000000000000000000000000000';
+const PTB = '0x30a25CC9c9EADe4D4d9e9349BE6e68c3411367D3';    
+const USDC = '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48';      
+
+const cfg = {
+  ethereum: {
+      owners: [ETHEREUM_STAKING_CONTRACT],
+      tokens: [ETH, PTB, USDC],
+  },
+}
+
+module.exports = {
+  methodology:
+    'TVL = Portal staking contract balances. No AMM liquidity included because Portal uses atomic swaps.',
+
+     ...Object.fromEntries(
+    Object.entries(cfg).map(([chain, { owners, tokens }]) => [
+      chain,
+      {
+        tvl: sumTokensExport({ owners, tokens }),
+      },
+    ])
+  )
+
+}