fix: the swap summary is shown only for a transaction sent to a Universal Router (closes #520)

The Universal Router decoder recognised execute() by its selector alone, so
the same calldata sent to any address was described as a swap through the
router. It now keeps the router deployments Uniswap publishes for Ethereum
Mainnet and Sepolia, and decodes only a transaction sent to one of them on
its network, ignoring address case. TxApproval passes the transaction's
chain id, TransactionDetail the active network's.

Model: opus-5-5

tests/approvalDisplayFloor.test.js

@@ -68,7 +68,11 @@ function swapData(amountIn, amountOutMin) {
 }
 
 function swapDetail(amountIn, amountOutMin, label) {
-    const decoded = uniswap.decode(swapData(amountIn, amountOutMin), ROUTER);
+    const decoded = uniswap.decode(
+        swapData(amountIn, amountOutMin),
+        ROUTER,
+        "0x1",
+    );
     return decoded.details.find((d) => d.label === label);
 }