feat: new arch support for banner , full screen ads and mobilesdk module on android

[demon-sword]

Description

This PR migrates key Android components to React Native’s New Architecture (TurboModules/Fabric) and updates documentation to reflect the current migration status.

• Implemented native specs and refactored modules for New Architecture compatibility.
• Confirmed Banner Ads are using a Fabric Native Component via codegen.
• Migrated Mobile Ads SDK methods and Full Screen Ad modules (App Open, Interstitial, Rewarded, Rewarded Interstitial) to the New Architecture. fv
• Updated the Android rows in the README’s “Migrating to the New Architecture Status” table.

Related issues

• N/A

Release Summary

Android migration to New Architecture for core ads modules; documentation updated to reflect current status.

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
• My change includes tests;
  • e2e tests added or updated in __tests__e2e__
  • jest tests added or updated in __tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

Test Plan

• Verified that Android Banner component renders via Fabric using the codegen native component (GoogleMobileAdsBannerViewNativeComponent) and manager (ReactNativeGoogleMobileAdsBannerAdViewManager).
• Validated Full Screen Ads lifecycle under the new TurboModule implementations:
  • App Open, Interstitial, Rewarded, Rewarded Interstitial load/show/dismiss flows.
• Ensured README status accurately reflects current migration state.

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[docs-page]

To view this pull requests documentation preview, visit the following URL:

docs.page/invertase/react-native-google-mobile-ads~819

Documentation is deployed and generated using docs.page.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 35.57%. Comparing base (a34c7ba) to head (055a5a7).
⚠️ Report is 209 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #819      +/-   ##
==========================================
- Coverage   43.72%   35.57%   -8.15%     
==========================================
  Files          30       36       +6     
  Lines         549      658     +109     
  Branches      151      167      +16     
==========================================
- Hits          240      234       -6     
- Misses        309      424     +115     

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[dylancom]

Thank you for your contribution! Great to see someone working on new arch support for Android. Would be great if some more experienced Android developers can help test / review this @mikehardy @DoctorJohn @birdofpreyru @wjaykim