Add Akka vault yield adapter

src/adaptors/akka/index.js

@@ -0,0 +1,85 @@
+const axios = require('axios');
+const utils = require('../utils');
+
+const VAULT_ADDRESS = '0x0e008684ae576f280c5426a89d3f5e1da1fc7398';
+const HL_INFO_URL = 'https://api.hyperliquid.xyz/info';
+const PRODUCTION_LIVE_MS = new Date('2026-04-15T00:00:00Z').getTime();
+
+const apy = async () => {
+  const { data } = await axios.post(
+    HL_INFO_URL,
+    { type: 'vaultDetails', vaultAddress: VAULT_ADDRESS },
+    { timeout: 10_000 },
+  );
+
+  // TVL = sum of all follower vault equity (skip malformed entries)
+  const tvlUsd = (data.followers ?? []).reduce((sum, f) => {
+    const equity = Number(f.vaultEquity);
+    return Number.isFinite(equity) ? sum + equity : sum;
+  }, 0);
+
+  // APY from Hyperliquid's reported APR (already annualized)
+  const apr = Number(data.apr);
+
+  // Compute base APY from PnL history since production live date
+  const historyEntry = (data.portfolio ?? []).find(([k]) => k === 'allTime');
+  const rawPnl = historyEntry?.[1]?.pnlHistory ?? [];
+  const rawAV = historyEntry?.[1]?.accountValueHistory ?? [];
+
+  let apyBase = null;
+
+  if (rawPnl.length > 0 && rawAV.length > 0) {
+    const pnlSorted = rawPnl
+      .map(([t, v]) => [t, Number(v)])
+      .sort(([a], [b]) => a - b);
+    const avSorted = rawAV
+      .map(([t, v]) => [t, Number(v)])
+      .sort(([a], [b]) => a - b);
+
+    // Consistent cutoff: first sample at or after PRODUCTION_LIVE_MS
+    const firstAtOrAfter = (series, cutoff, constraint) =>
+      series.find(([t, v]) => t >= cutoff && Number.isFinite(v) && (!constraint || constraint(v)));
+
+    const pnlStart = firstAtOrAfter(pnlSorted, PRODUCTION_LIVE_MS);
+    const avStart = firstAtOrAfter(avSorted, PRODUCTION_LIVE_MS, (v) => v > 0);
+    const liveStartPnl = pnlStart ? pnlStart[1] : 0;
+    const liveStartValue = avStart ? avStart[1] : 0;
+
+    if (liveStartValue > 0 && pnlSorted.length > 0) {
+      const currentPnl = pnlSorted[pnlSorted.length - 1][1];
+      const livePnlDelta = currentPnl - liveStartPnl;
+      const cumulativeReturn = livePnlDelta / liveStartValue;
+
+      // Annualize based on elapsed days
+      const liveDays =
+        (pnlSorted[pnlSorted.length - 1][0] - PRODUCTION_LIVE_MS) / 86_400_000;
+      if (liveDays > 0) {
+        apyBase = (cumulativeReturn / liveDays) * 365 * 100; // as percentage
+      }
+    }
+  }
+
+  // Fallback to Hyperliquid-reported APR if calculation fails
+  if (apyBase === null || !isFinite(apyBase)) {
+    apyBase = isFinite(apr) ? apr * 100 : null;
+  }
+
+  return [
+    {
+      pool: `${VAULT_ADDRESS}-hyperliquid`.toLowerCase(),
+      chain: utils.formatChain('Hyperliquid'),
+      project: 'akka',
+      symbol: 'USDC',
+      tvlUsd,
+      apyBase,
+      poolMeta: 'AI Quant Vault',
+      url: 'https://app.akka.finance/vault',
+    },
+  ].filter((p) => utils.keepFinite(p));
+};
+
+module.exports = {
+  timetravel: false,
+  apy,
+  url: 'https://app.akka.finance/vault',
+};