AppsFlyer Attribution & Deep Linking Integration

Integrate AppsFlyer SDK via appsflyer-capacitor-plugin into Rowan (a Capacitor 8 React + TypeScript app live on iOS and Google Play) to attribute installs from upcoming Reddit and Meta ads.
- OneLink with deferred deep linking: Set up OneLink ad links with deferred deep linking. Onboarding is never skipped: new users sign up and finish onboarding first, then the app opens the content the ad promised (e.g. a recipe). Signed-in, onboarded users go straight to it.
- Analytics hookup: Send install attribution data (media_source, campaign, af_status) directly to Amplitude on first launch and log an Install Attributed event.

Native platform setup:
- iOS: Associated Domains (applinks:.onelink.me), custom scheme verification, PrivacyInfo.xcprivacy declarations. No ATT prompt for this phase (relying on SKAdNetwork / privacy-safe attribution).
- Android: Google Play Install Referrer library and autoVerify App Links intent filter in AndroidManifest.xml (preserving existing scripts/configure-native-deep-links.mjs setup).
- Preserve existing deep link rules: Marketing pages (rowan.eco/, /about, /pricing, ad landing pages) must continue opening in the browser; only app content opens in the app.
- Store updates & review compliance: Bump native versions cleanly so existing Capgo OTA updates remain compatible.
- Deliverables & process: Pull request, signed internal test builds, real-device QA screen recordings, and a short handover doc. Full detailed brief provided; fixed-price quote with task breakdown requested.