chore: 플랫폼 설정 및 테스트 업데이트

- Android 광고 권한 추가
- macOS 플러그인 등록
- 테스트 mock 업데이트

android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- IAP 결제 권한 -->
+    <uses-permission android:name="com.android.vending.BILLING" />
+
     <application
         android:label="asciineverdie"
         android:name="${applicationName}"
@@ -29,6 +32,10 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <!-- AdMob App ID -->
+        <meta-data
+            android:name="com.google.android.gms.ads.APPLICATION_ID"
+            android:value="ca-app-pub-6691216385521068~8216990571"/>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data