fix: preserve multiple token transfers per tx hash in transaction history

When a swap produces multiple ERC-20 token transfers with the same tx
hash (e.g. send WETH + receive USDC), only the last transfer was kept
because txsByHash was keyed by bare tx hash. This caused the
address-token view to show no transactions for tokens obtained via swap.

Use a composite key (hash:contractAddress) so all token transfers are
preserved. The bare-hash normal-tx entry is removed when token transfers
replace it to avoid duplication.

Closes #72

src/popup/index.html

@@ -637,16 +637,10 @@
                 <div class="flex justify-center mb-3">
                     <canvas id="receive-qr"></canvas>
                 </div>
-                <div
-                    id="receive-ens"
-                    class="font-bold mb-1 hidden flex items-center"
-                ></div>
                 <div
                     class="border border-border p-2 break-all mb-3 text-xs cursor-pointer"
-                    title="Click to copy"
                 >
-                    <span id="receive-address-dot"></span>
-                    <span id="receive-address-full"></span>
+                    <span id="receive-address-block" class="select-all"></span>
                     <span id="receive-etherscan-link"></span>
                 </div>
                 <button

src/popup/views/receive.js

@@ -2,8 +2,8 @@ const {
     $,
     showView,
     showFlash,
-    addressDotHtml,
-    escapeHtml,
+    formatAddressHtml,
+    addressTitle,
 } = require("./helpers");
 const { state, currentAddress } = require("../../shared/state");
 const QRCode = require("qrcode");
@@ -18,17 +18,12 @@ const EXT_ICON =
 function show() {
     const addr = currentAddress();
     const address = addr ? addr.address : "";
-    $("receive-address-dot").innerHTML = address ? addressDotHtml(address) : "";
-    $("receive-address-full").textContent = address;
-    $("receive-address-full").dataset.full = address;
+    const title = address ? addressTitle(address, state.wallets) : null;
     const ensName = addr ? addr.ensName || null : null;
-    const ensEl = $("receive-ens");
-    if (ensName) {
-        ensEl.innerHTML = addressDotHtml(address) + escapeHtml(ensName);
-        ensEl.classList.remove("hidden");
-    } else {
-        ensEl.classList.add("hidden");
-    }
+    $("receive-address-block").innerHTML = address
+        ? formatAddressHtml(address, ensName, null, title)
+        : "";
+    $("receive-address-block").dataset.full = address;
     const link = address ? `https://etherscan.io/address/${address}` : "";
     $("receive-etherscan-link").innerHTML = link
         ? `<a href="${link}" target="_blank" rel="noopener" class="inline-flex items-center">${EXT_ICON}</a>`
@@ -65,8 +60,8 @@ function show() {
 }
 
 function init(ctx) {
-    $("receive-address-full").addEventListener("click", () => {
-        const addr = $("receive-address-full").dataset.full;
+    $("receive-address-block").addEventListener("click", () => {
+        const addr = $("receive-address-block").dataset.full;
         if (addr) {
             navigator.clipboard.writeText(addr);
             showFlash("Copied!");
@@ -74,7 +69,7 @@ function init(ctx) {
     });
 
     $("btn-receive-copy").addEventListener("click", () => {
-        const addr = $("receive-address-full").dataset.full;
+        const addr = $("receive-address-block").dataset.full;
         if (addr) {
             navigator.clipboard.writeText(addr);
             showFlash("Copied!");

src/shared/transactions.js

@@ -153,9 +153,14 @@ async function fetchRecentTransactions(address, blockscoutUrl, count = 25) {
 
     // When a token transfer shares a hash with a normal tx, the normal tx
     // is the contract call (0 ETH) and the token transfer has the real
-    // amount and symbol. Replace the normal tx with the token transfer,
-    // but preserve contract call metadata (direction, label, method) so
-    // swaps and other contract interactions display correctly.
+    // amount and symbol. Preserve contract call metadata (direction, label,
+    // method) so swaps and other contract interactions display correctly.
+    //
+    // A single tx hash can produce multiple token transfers (e.g. a swap
+    // sends token A and receives token B). Use a composite key
+    // (hash:contractAddress) so every transfer is preserved. The original
+    // normal-tx entry (keyed by bare hash) is removed when at least one
+    // token transfer replaces it.
     for (const tt of ttJson.items || []) {
         const parsed = parseTokenTransfer(tt, addrLower);
         const existing = txsByHash.get(parsed.hash);
@@ -164,8 +169,12 @@ async function fetchRecentTransactions(address, blockscoutUrl, count = 25) {
             parsed.directionLabel = existing.directionLabel;
             parsed.isContractCall = true;
             parsed.method = existing.method;
+            // Remove the bare-hash normal tx so it isn't duplicated
+            txsByHash.delete(parsed.hash);
         }
-        txsByHash.set(parsed.hash, parsed);
+        // Use composite key so multiple token transfers per tx are kept
+        const compositeKey = parsed.hash + ":" + (parsed.contractAddress || "");
+        txsByHash.set(compositeKey, parsed);
     }
 
     const txs = [...txsByHash.values()];