Android Screen Recorder Fix & AdMob

I will hand you a zipped Flutter-based screen-recorder project that is already functional but needs finishing touches before it can go live. Scope of work • Screen-recording permission flow – the countdown must begin only after the user grants permission on Android 10 and newer. • Floating overlay/brush – confirm it behaves exactly as in the current code when recording starts, pauses and stops. • Google AdMob – add one banner and one interstitial using test ads only; I will swap in my own IDs later. • Build & signing – produce a fully signed release AAB (with new keystore) ready for the Play Store upload. Acceptance criteria 1. Recording starts every time without crashes or premature countdown. 2. Overlay is draggable, visible above other apps, and never blocks system dialogs. 3. Banner appears on the main screen; interstitial loads and shows on the trigger we agree during testing. 4. Release AAB installs cleanly on physical devices running Android 10, 11, 12, 13 and shows “Google Play App Signing” compliance when uploaded to a test track. Please keep the codebase tidy, comment the AdMob sections clearly, and share any gradle or manifest changes so I can merge future updates without hassle.