Add Cube DEX yield adapter

src/adaptors/cube/index.js

@@ -0,0 +1,42 @@
+// Cube DEX yield adapter. Lists every enabled Cube pool with its current
+// TVL, fee-derived APY (24h and 7d), volume, and underlying token mints.
+//
+// Data source: https://api.cubee.ee/api/defillama/yields — a small open
+// REST endpoint that reads the Cube backend's on-chain swap-event
+// indexer (the same indexer that drives the volume/fee adapters in
+// dimension-adapters).
+
+const utils = require('../utils');
+
+const API_URL = 'https://api.cubee.ee/api/defillama/yields';
+
+const apy = async () => {
+  const res = await fetch(API_URL);
+  const data = await res.json();
+  if (!data || !Array.isArray(data.pools)) {
+    throw new Error(`Cube yields API returned invalid response: ${JSON.stringify(data).slice(0, 200)}`);
+  }
+
+  const mapped = data.pools.map((p) => ({
+    pool: p.pool,
+    chain: 'Solana',
+    project: 'cube',
+    symbol: utils.formatSymbol(p.symbol),
+    tvlUsd: p.tvlUsd,
+    apyBase: p.apyBase,
+    apyBase7d: p.apyBase7d,
+    underlyingTokens: p.underlyingTokens,
+    volumeUsd1d: p.volumeUsd1d,
+    volumeUsd7d: p.volumeUsd7d,
+    poolMeta: p.poolMeta,
+    url: p.url,
+    token: null, // Solana mints aren't 0x… so we opt out of the EVM fallback regex
+  }));
+
+  return mapped.filter((p) => utils.keepFinite(p));
+};
+
+module.exports = {
+  apy,
+  url: 'https://cubee.ee',
+};