[Feature] Add AdMob Ads SDK integration skill #131

Proposed Skill

Requesting a new skill to guide developers through integrating and managing the Google Mobile Ads (AdMob) SDK in Android applications using modern Android development practices (Kotlin, Jetpack Compose / View-based layouts).

Additional Context

The skill should provide guidance, boilerplate code, and review capabilities for:

1. SDK Setup & Configuration

   • Adding play-services-ads dependency and initializing the SDK properly (MobileAds.initialize).
   • Configuring AndroidManifest.xml with the AdMob App ID (com.google.android.gms.ads.APPLICATION_ID).

2. Ad Format Implementations (Jetpack Compose & Views)

   • Banner Ads: Composables (AndroidView wrapped AdView) and XML layout integration.
   • Interstitial Ads: Preloading, show/dismiss callbacks, and lifecycle awareness.
   • Rewarded Ads & Rewarded Interstitial: Granting rewards via callbacks securely.
   • Native Ads: Custom layout binding and asset handling.