add StakeStone Berachain Vault (DefiLlama#12869)

Author: stakestone-scdev

projects/stakestone-berastone/index.js

@@ -0,0 +1,16 @@
+const vaultABI = {
+  "getUnderlyings": "function getUnderlyings() external view returns (address[])"
+}
+
+const Vault = '0x8f88aE3798E8fF3D0e0DE7465A0863C9bbB577f0';
+
+const Tvl = async (api) => {
+  const underlyings = await api.call({ abi: vaultABI.getUnderlyings, target: Vault })
+  return api.sumTokens({ owner: Vault, tokens: underlyings })
+}
+
+module.exports = {
+  ethereum: {
+    tvl: Tvl,
+  }
+}