Add mainnet cWBTC token-aggregation indexing, supply proof, and Etherscan verify scripts.

Wire live 0x2BBe3c… address into canonical tokens, pool catalog merge from mesh health, and bridge/cWBTC explorer verification helpers.

Co-authored-by: Cursor <cursoragent@cursor.com>

services/token-aggregation/src/api/routes/config.test.ts

@@ -218,4 +218,16 @@ describe('Config API runtime networks loader', () => {
       )
     ).toBe(false);
   });
+
+  it('excludes hub cUSDC/cUSDT peg references from Ethereum mainnet watchAssets', async () => {
+    const metamaskRes = await fetch(`${baseUrl}/api/v1/config/metamask?chainId=1`);
+    expect(metamaskRes.status).toBe(200);
+    const metamaskBody = (await metamaskRes.json()) as Record<string, any>;
+    const symbols = metamaskBody.watchAssets.map((entry: Record<string, any>) => entry.options?.symbol);
+    expect(symbols).not.toContain('cUSDC');
+    expect(symbols).not.toContain('cUSDT');
+    expect(symbols).toEqual(
+      expect.arrayContaining(['cWUSDC', 'cWUSDT'])
+    );
+  });
 });

services/token-aggregation/src/api/routes/config.ts

@@ -72,6 +72,19 @@ function resolveWalletWatchAssetSymbol(spec: { symbol: string; familySymbol?: st
   return spec.symbol;
 }
 
+const HUB_COMPLIANT_WATCH_SYMBOLS = new Set(['cUSDC', 'cUSDT']);
+const HUB_COMPLIANT_WATCH_CHAIN_IDS = new Set([138, 651940]);
+
+function isWalletWatchAssetEligible(spec: { symbol: string }, chainId: number): boolean {
+  // Off the hub, cUSDC/cUSDT catalog rows point at official USDC/USDT peg contracts
+  // (symbol USDC/USDT on-chain). MetaMask rejects wallet_watchAsset when options.symbol
+  // does not match ERC-20 symbol(). Public wrapped transports are cWUSDC/cWUSDT instead.
+  if (HUB_COMPLIANT_WATCH_SYMBOLS.has(spec.symbol) && !HUB_COMPLIANT_WATCH_CHAIN_IDS.has(chainId)) {
+    return false;
+  }
+  return true;
+}
+
 type RuntimeNetworksPayload = {
   version?: string | { major?: number; minor?: number; patch?: number };
   networks?: unknown[];
@@ -219,6 +232,7 @@ router.get(['/config/metamask', '/metamask'], cacheMiddleware(5 * 60 * 1000), as
     }
 
     const watchAssets = getCanonicalTokensByChain(chainId)
+      .filter((spec) => isWalletWatchAssetEligible(spec, chainId))
       .map((spec) => {
         const address = spec.addresses[chainId];
         if (!address) return null;