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/uniswapUndeterminedTokenIn.test.js

@@ -79,7 +79,7 @@ function balanceCheck(token, minBalance) {
 }
 
 function detail(data, label) {
-    const decoded = uniswap.decode(data, ROUTER, {});
+    const decoded = uniswap.decode(data, ROUTER, "0x1", {});
     expect(decoded).not.toBeNull();
     return decoded.details.find((d) => d.label === label);
 }
@@ -113,7 +113,9 @@ describe("an execute() whose input currency never decoded", () => {
     });
 
     test("does not name ETH in the swap title either", () => {
-        expect(uniswap.decode(data(), ROUTER, {}).name).toBe("Uniswap Swap");
+        expect(uniswap.decode(data(), ROUTER, "0x1", {}).name).toBe(
+            "Uniswap Swap",
+        );
     });
 });
 
@@ -123,7 +125,9 @@ describe("an execute() that names only an output token", () => {
 
     test("refuses the input rather than defaulting it to ETH", () => {
         expect(detail(data(), "Token In").value).toBe(REFUSAL);
-        expect(uniswap.decode(data(), ROUTER, {}).name).toBe("Uniswap Swap");
+        expect(uniswap.decode(data(), ROUTER, "0x1", {}).name).toBe(
+            "Uniswap Swap",
+        );
     });
 
     test("still states the output it did establish", () => {
@@ -170,7 +174,9 @@ describe("native ETH in, which V4 spells as the zero address", () => {
 
         expect(detail(data, "Token In").value).toBe("ETH (native)");
         expect(detail(data, "Amount").value).toBe("1.0000 ETH");
-        expect(uniswap.decode(data, ROUTER, {}).name).toBe("Swap ETH → USDT");
+        expect(uniswap.decode(data, ROUTER, "0x1", {}).name).toBe(
+            "Swap ETH → USDT",
+        );
     });
 
     test("WRAP_ETH is still ETH at 18 decimals", () => {