refactor: use fast xml parser for iOS perf exports

Author: thymikee

package.json

@@ -74,6 +74,7 @@
     "android"
   ],
   "dependencies": {
+    "fast-xml-parser": "^5.5.10",
     "pngjs": "^7.0.0"
   },
   "devDependencies": {

pnpm-lock.yaml

@@ -68,8 +68,8 @@ test('parseApplePsOutput reads pid cpu rss and command columns', () => {
   ]);
 });
 
-test('parseIosDevicePerfTable reads Activity Monitor cpu time and memory columns', () => {
-  const rows = parseIosDevicePerfTable(
+test('parseIosDevicePerfTable reads Activity Monitor cpu time and memory columns', async () => {
+  const rows = await parseIosDevicePerfTable(
     [
       '<?xml version="1.0"?>',
       '<trace-query-result>',
@@ -359,4 +359,6 @@ test('sampleApplePerfMetrics uses xctrace Activity Monitor for iOS devices', asy
   assert.equal(metrics.memory.residentMemoryKb, 8192);
   assert.equal(metrics.cpu.method, 'xctrace-activity-monitor');
   assert.deepEqual(metrics.cpu.matchedProcesses, ['ExampleDeviceApp']);
+  assert.equal(metrics.cpu.measuredAt, '2026-04-01T10:00:02.000Z');
+  assert.equal(metrics.memory.measuredAt, '2026-04-01T10:00:02.000Z');
 });