Document nonblocking audio cleanup and keep lifecycle tests on main

tools/chatgui-android/router-tests/src/test/kotlin/com/utun/chat/data/CallAudioLifecycleTest.kt

@@ -176,7 +176,7 @@ class CallAudioLifecycleTest {
         engine.stop(); assertEquals(1, stops())
     }
 
-    @Test(timeout = 5_000) fun blockedRecordStartupCannotHoldMainBeforeTheBoundedJoin() {
+    @Test fun blockedRecordStartupCannotHoldMainBeforeTheBoundedJoin() {
         val entered = CountDownLatch(1)
         val unblock = CountDownLatch(1).also { gates.add(it) }
         AudioRecord.nextOnStart = { entered.countDown(); unblock.await() }
@@ -192,7 +192,7 @@ class CallAudioLifecycleTest {
         engine.stop(); assertEquals(1, stops())
     }
 
-    @Test(timeout = 5_000) fun blockedTimestampReporterCannotHoldMainOrReleaseItsOutputEarly() {
+    @Test fun blockedTimestampReporterCannotHoldMainOrReleaseItsOutputEarly() {
         start()
         val entered = CountDownLatch(1)
         val unblock = CountDownLatch(1).also { gates.add(it) }