Hi, we already have an application built on an older version of Angular 4 and ionic 3. We need to upgrade it to the latest Angular version. Please let us know the approach, and timeline for the upgrade Scope • Set up the project skeleton in Ionic 7 with Angular 15 routing already wired. • Implement at least one sample page and service to prove navigation, API calls, and native Android build work smoothly. • Configure Android-specific settings, signing, and Play Store–ready build variants. Acceptance The deliverable is an .aab or .apk plus the full source in Git that builds without errors via `ionic build android`. A short README explaining environment prerequisites and build steps finalises the hand-off.