Fix Android emulation and runtime errors for both apps

- Add emulator management scripts (start/stop/status) with logging to /tmp
- Fix AVD config: enable GPU acceleration, increase RAM to 4096M
- Update babel-preset-expo 9.3.2 -> 55.0.8 to fix RN 0.83 private methods
  support without breaking polyfills
- Add Android package name to expo app.json
- Fix Flutter startup crash: call WidgetsFlutterBinding.ensureInitialized
  before accessing platform channels in db init

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/emu-start.sh

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+# Start Android emulator in headless mode with logging
+set -euo pipefail
+
+export ANDROID_HOME="$HOME/Android/Sdk"
+export ANDROID_SDK_ROOT="$ANDROID_HOME"
+export PATH="$ANDROID_HOME/emulator:$ANDROID_HOME/platform-tools:$HOME/flutter/bin:$PATH"
+
+AVD_NAME="Pixel_7_API_35"
+EMU_LOG="/tmp/emulator.log"
+BOOT_LOG="/tmp/emulator-boot.log"
+
+# Kill any existing emulator
+if adb devices 2>/dev/null | grep -q "emulator"; then
+    echo "[$(date)] Killing existing emulator..." | tee -a "$BOOT_LOG"
+    adb emu kill 2>/dev/null || true
+    sleep 2
+fi
+
+# Kill any stale emulator processes
+pkill -f "qemu-system-x86_64" 2>/dev/null || true
+sleep 1
+
+# Clear old logs
+> "$EMU_LOG"
+> "$BOOT_LOG"
+
+echo "[$(date)] Starting emulator: $AVD_NAME" | tee -a "$BOOT_LOG"
+echo "[$(date)] Emulator log: $EMU_LOG" | tee -a "$BOOT_LOG"
+echo "[$(date)] Boot log: $BOOT_LOG" | tee -a "$BOOT_LOG"
+
+# Start emulator in background with:
+# - KVM hardware acceleration (auto-detected)
+# - swiftshader for GPU (headless-compatible)
+# - no audio/window for CI/headless use
+# - no snapshot for clean boot
+nohup emulator -avd "$AVD_NAME" \
+    -no-audio \
+    -no-window \
+    -gpu swiftshader_indirect \
+    -no-snapshot-save \
+    -no-metrics \
+    -wipe-data \
+    > "$EMU_LOG" 2>&1 &
+
+EMU_PID=$!
+echo "[$(date)] Emulator PID: $EMU_PID" | tee -a "$BOOT_LOG"
+
+# Wait for boot to complete (timeout 120s)
+echo "[$(date)] Waiting for device to come online..." | tee -a "$BOOT_LOG"
+TIMEOUT=120
+ELAPSED=0
+
+# First wait for adb to see the device
+while ! adb devices 2>/dev/null | grep -q "emulator"; do
+    if [ $ELAPSED -ge $TIMEOUT ]; then
+        echo "[$(date)] TIMEOUT: Device never appeared in adb" | tee -a "$BOOT_LOG"
+        echo "[$(date)] Last emulator log lines:" | tee -a "$BOOT_LOG"
+        tail -20 "$EMU_LOG" | tee -a "$BOOT_LOG"
+        exit 1
+    fi
+    sleep 2
+    ELAPSED=$((ELAPSED + 2))
+    echo "[$(date)] Waiting for adb device... (${ELAPSED}s)" >> "$BOOT_LOG"
+done
+
+echo "[$(date)] Device visible in adb, waiting for boot completion..." | tee -a "$BOOT_LOG"
+
+# Now wait for boot_completed
+while [ "$(adb shell getprop sys.boot_completed 2>/dev/null | tr -d '\r')" != "1" ]; do
+    if [ $ELAPSED -ge $TIMEOUT ]; then
+        echo "[$(date)] TIMEOUT: Boot did not complete within ${TIMEOUT}s" | tee -a "$BOOT_LOG"
+        echo "[$(date)] Boot animation state: $(adb shell getprop init.svc.bootanim 2>/dev/null)" | tee -a "$BOOT_LOG"
+        echo "[$(date)] Last emulator log lines:" | tee -a "$BOOT_LOG"
+        tail -20 "$EMU_LOG" | tee -a "$BOOT_LOG"
+        exit 1
+    fi
+    sleep 2
+    ELAPSED=$((ELAPSED + 2))
+    echo "[$(date)] Waiting for boot... (${ELAPSED}s)" >> "$BOOT_LOG"
+done
+
+echo "[$(date)] Emulator booted successfully in ${ELAPSED}s!" | tee -a "$BOOT_LOG"
+echo "[$(date)] Device: $(adb devices | grep emulator)" | tee -a "$BOOT_LOG"
+adb shell getprop ro.build.version.sdk 2>/dev/null | xargs -I{} echo "[$(date)] API level: {}" | tee -a "$BOOT_LOG"

scripts/emu-status.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Check Android emulator status
+export ANDROID_HOME="$HOME/Android/Sdk"
+export PATH="$ANDROID_HOME/emulator:$ANDROID_HOME/platform-tools:$PATH"
+
+echo "=== ADB Devices ==="
+adb devices 2>/dev/null || echo "adb not running"
+
+echo ""
+echo "=== Emulator Processes ==="
+ps aux | grep -E "(qemu-system|emulator)" | grep -v grep || echo "No emulator running"
+
+echo ""
+echo "=== Boot Status ==="
+if adb devices 2>/dev/null | grep -q "emulator"; then
+    echo "boot_completed: $(adb shell getprop sys.boot_completed 2>/dev/null | tr -d '\r')"
+    echo "boot_anim: $(adb shell getprop init.svc.bootanim 2>/dev/null | tr -d '\r')"
+    echo "API level: $(adb shell getprop ro.build.version.sdk 2>/dev/null | tr -d '\r')"
+else
+    echo "No emulator connected"
+fi
+
+echo ""
+echo "=== Recent Boot Log ==="
+tail -10 /tmp/emulator-boot.log 2>/dev/null || echo "No boot log"
+
+echo ""
+echo "=== Recent Emulator Log (last 10 lines) ==="
+tail -10 /tmp/emulator.log 2>/dev/null || echo "No emulator log"

scripts/emu-stop.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# Stop Android emulator cleanly
+set -euo pipefail
+
+export ANDROID_HOME="$HOME/Android/Sdk"
+export PATH="$ANDROID_HOME/emulator:$ANDROID_HOME/platform-tools:$PATH"
+
+BOOT_LOG="/tmp/emulator-boot.log"
+
+echo "[$(date)] Stopping emulator..." | tee -a "$BOOT_LOG"
+
+if adb devices 2>/dev/null | grep -q "emulator"; then
+    adb emu kill 2>/dev/null || true
+    sleep 2
+fi
+
+pkill -f "qemu-system-x86_64" 2>/dev/null || true
+
+echo "[$(date)] Emulator stopped." | tee -a "$BOOT_LOG"

todo-expo/app.json

@@ -27,6 +27,9 @@
     },
     "plugins": [
       "expo-sqlite"
-    ]
+    ],
+    "android": {
+      "package": "com.anonymous.todoexpo"
+    }
   }
 }

todo-expo/package.json

@@ -15,6 +15,7 @@
     "@expo/vector-icons": "^15.0.2",
     "@react-navigation/native": "^6.1.6",
     "@react-navigation/native-stack": "^6.9.12",
+    "babel-preset-expo": "^55.0.8",
     "create-react-class": "^15.7.0",
     "expo": "^55.0.2",
     "expo-cli": "^6.3.8",
@@ -30,6 +31,9 @@
     "react-native-web": "^0.21.0"
   },
   "devDependencies": {
+    "@babel/plugin-transform-class-properties": "^7.28.6",
+    "@babel/plugin-transform-private-methods": "^7.28.6",
+    "@babel/plugin-transform-private-property-in-object": "^7.28.6",
     "shadow-cljs": "^2.23.3"
   },
   "private": true

todo-flutter/src/todo/main.cljd

@@ -51,6 +51,7 @@
         .child (m/Icon m/Icons.add)))))
 
 (defn main []
+  (m/WidgetsFlutterBinding.ensureInitialized)
   (await (db/init-db!))
   (let [todos (await (db/load-todos!))]
     (when todos