Refactor TVL calculation and add Ethereum support for Mineral Vault

Simplified the TVL calculation to use only total supply for both Plume Mainnet and Ethereum, removing issuer reserve wallet logic. Added Ethereum chain support with its own TVL function.

Author: zmckinnon

projects/mineral-vault/index.js

@@ -1,27 +1,17 @@
-async function tvl_plume_mainnet(api) {
-    const mineralVaults = ["0x5107272921A750A20d492Fb41Acf0b770b09a624"];
-    const issuerReserveWallets = ["0xCcBA2623B2CE6148c09d8E676B81E472D85c21Ea"];
+const mineralVaults = ["0x9D08946Ca5856f882A56c29042FbEDC5142663b9"];
 
+async function tvl_ethereum(api) {
     const totalSupplies = await api.multiCall({ abi: 'erc20:totalSupply', calls: mineralVaults });
-    const issuerReserveBalances = await api.multiCall({
-        abi: 'erc20:balanceOf',
-        calls: mineralVaults.flatMap(token => issuerReserveWallets.map(owner => ({ target: token, params: owner })))
-    });
-
-    const circulatingSupplies = mineralVaults.map((vault, index) => {
-        const reserveBalances = issuerReserveWallets
-            .map((_, j) => BigInt(issuerReserveBalances[index * issuerReserveWallets.length + j]))
-            .reduce((a, b) => a + b, 0n);
-        return {
-            vault,
-            circulating: BigInt(totalSupplies[index]) - reserveBalances
-        };
-    });
+    api.add(mineralVaults, totalSupplies);
+}
 
-    circulatingSupplies.forEach(({ vault, circulating }) => api.add(vault, circulating));
+async function tvl_plume_mainnet(api) {
+    const totalSupplies = await api.multiCall({ abi: 'erc20:totalSupply', calls: mineralVaults });
+    api.add(mineralVaults, totalSupplies);
 }
 
 module.exports = {
     methodology: "TVL is the total supply of tokens, each representing a fully-backed real-world oil & gas asset from Mineral Vault funds.",
+    ethereum: { tvl: tvl_ethereum },
     plume_mainnet: { tvl: tvl_plume_mainnet },
 }