test: stabilize Android public staging verification

android/app/src/androidTest/java/org/whoneedhelp/mobile/CrossClientStagingInstrumentedTest.java

@@ -45,10 +45,7 @@ public final class CrossClientStagingInstrumentedTest {
         String browserReply = requiredArgument("browser_reply");
 
         try (ActivityScenario<MainActivity> scenario = launch(loginPath)) {
-            waitForElementText(
-                "remember-login-button",
-                "Keep me logged in on this device"
-            );
+            waitForElement("remember-login-button");
             click("remember-login-button");
             waitForElementText(
                 "main-content",

scripts/android-browser-staging-e2e.sh

@@ -14,6 +14,7 @@ tools_image="who-need-help:android-e2e-tools-$run_id"
 browser_image="who-need-help-e2e-tests:android-$run_id"
 android_image="who-need-help-android:cross-client-$run_id"
 container="who-need-help-android-cross-client-$run_id"
+avd_volume="who-need-help-android-avd-cross-client-$run_id"
 package=org.whoneedhelp.mobile.staging
 service_class=org.whoneedhelp.mobile.TrackingService
 fixture_password="$(openssl rand -hex 24)"
@@ -234,6 +235,7 @@ cleanup() {
   fi
 
   docker rm -f "$container" >/dev/null 2>&1 || true
+  docker volume rm -f "$avd_volume" >/dev/null 2>&1 || true
   docker image rm "$android_image" "$browser_image" "$tools_image" >/dev/null 2>&1 || true
 
   {
@@ -243,6 +245,12 @@ cleanup() {
     else
       printf 'true\n'
     fi
+    printf 'volume_absent='
+    if docker volume inspect "$avd_volume" >/dev/null 2>&1; then
+      printf 'false\n'
+    else
+      printf 'true\n'
+    fi
     printf 'fixture_prefix_absent='
     if [[ -f "$output_dir/database-cleanup.diff" ]] &&
       [[ ! -s "$output_dir/database-cleanup.diff" ]]; then
@@ -277,12 +285,41 @@ docker build \
   --tag "$android_image" \
   android >"$output_dir/android-image-build.log"
 
+docker volume create "$avd_volume" >"$output_dir/avd-volume.txt"
+
 docker run -d \
   --name "$container" \
   --device /dev/kvm \
+  --mount \
+    "type=volume,source=$avd_volume,target=/home/gradle/.android/avd/who_need_help_test.avd" \
   "$android_image" >"$output_dir/container-id.txt"
 
-adb wait-for-device
+if [[ "$(docker inspect --format '{{.State.Running}}' "$container")" != true ]]; then
+  docker logs "$container" >"$output_dir/emulator.log" 2>&1 || true
+  echo "Android cross-client emulator exited before ADB became available; inspect $output_dir/emulator.log." >&2
+  exit 1
+fi
+
+adb_ready=0
+for _attempt in $(seq 1 90); do
+  if [[ "$(docker inspect --format '{{.State.Running}}' "$container")" != true ]]; then
+    break
+  fi
+
+  if [[ "$(adb get-state 2>/dev/null || true)" == device ]]; then
+    adb_ready=1
+    break
+  fi
+
+  sleep 2
+done
+
+if [[ "$adb_ready" -ne 1 ]]; then
+  docker logs "$container" >"$output_dir/emulator.log" 2>&1 || true
+  echo "Android cross-client emulator did not expose a ready ADB device." >&2
+  exit 1
+fi
+
 booted=
 for _attempt in $(seq 1 90); do
   booted=$(adb shell getprop sys.boot_completed 2>/dev/null | tr -d '\r')
@@ -343,6 +380,12 @@ start_android_phase exchangeMessageAndTrackingWithBrowser
 
 tracking_started=0
 for _attempt in $(seq 1 45); do
+  if ! kill -0 "$android_runner_pid" 2>/dev/null; then
+    wait_android_phase
+    echo "Android instrumentation exited before foreground tracking started." >&2
+    exit 1
+  fi
+
   adb shell dumpsys notification --noredact >"$output_dir/notifications-current.txt"
   adb shell dumpsys activity services "$package" >"$output_dir/services-current.txt"
   if grep -Fq "Sharing live location" "$output_dir/notifications-current.txt" &&

scripts/android-staging-smoke.sh

@@ -9,6 +9,7 @@ TEST_APK="$ROOT/android/dist-staging/who-need-help-staging-androidTest.apk"
 run_id=$(date -u +%Y%m%d%H%M%S)-$$
 image="who-need-help-android:staging-smoke-$run_id"
 container="who-need-help-android-staging-smoke-$run_id"
+avd_volume="who-need-help-android-avd-staging-smoke-$run_id"
 output="$ROOT/output/android-staging-smoke/$run_id"
 package=org.whoneedhelp.mobile.staging
 activity=org.whoneedhelp.mobile.MainActivity
@@ -77,6 +78,7 @@ cleanup() {
   fi
 
   docker rm -f "$container" >/dev/null 2>&1 || true
+  docker volume rm -f "$avd_volume" >/dev/null 2>&1 || true
   docker image rm "$image" >/dev/null 2>&1 || true
 
   {
@@ -87,6 +89,13 @@ cleanup() {
       printf 'true\n'
     fi
 
+    printf 'volume_absent='
+    if docker volume inspect "$avd_volume" >/dev/null 2>&1; then
+      printf 'false\n'
+    else
+      printf 'true\n'
+    fi
+
     printf 'image_absent='
     if docker image inspect "$image" >/dev/null 2>&1; then
       printf 'false\n'
@@ -113,11 +122,21 @@ docker build \
   --tag "$image" \
   "$ROOT/android" >"$output/image-build.txt"
 
+docker volume create "$avd_volume" >"$output/avd-volume.txt"
+
 docker run -d \
   --name "$container" \
   --device /dev/kvm \
+  --mount \
+    "type=volume,source=$avd_volume,target=/home/gradle/.android/avd/who_need_help_test.avd" \
   "$image" >"$output/container-id.txt"
 
+if [ "$(docker inspect --format '{{.State.Running}}' "$container")" != "true" ]; then
+  docker logs "$container" >"$output/emulator.log" 2>&1 || true
+  echo "Android staging emulator exited before ADB became available; inspect $output/emulator.log." >&2
+  exit 1
+fi
+
 docker exec "$container" adb wait-for-device
 
 booted=