Looking for an Arabic-speaking Flutter developer with real experience integrating Branch.io deep linking (including deferred deep linking) in production apps. The task is to set up Branch.io in a Flutter project for iOS and Android, configure dashboard settings, and ensure reliable navigation for cold start, background, and installation flows as well as proper fallback routing from web and social apps. You should be able to test on physical devices, troubleshoot edge cases, and provide a brief implementation note. When applying, please share examples of previous Branch.io work in Flutter, a short explanation of how you handle deep-link data on app cold start vs when the app is already running, plus your timeline and budget.