Add admin user details, pack notifications, remove crypto

- Add enabled packs and feature interests to admin user page
- Add clickable links from responses to packs in admin
- Add pack change notification edge function
- Remove react-native-quick-crypto (unused E2EE)
- Bump mobile version to 1.0.1 (versionCode 22)
- Add EAS config and preview build scripts
- Gitignore keystore and APK files

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/mobile/app/_layout.tsx

@@ -1,6 +1,5 @@
 // Polyfills must be imported FIRST before any other React Native imports
 import "../src/polyfills/web";
-import "../src/polyfills/crypto";
 
 // Initialize Sentry early to capture all errors
 import { initSentry, setUserContext, clearUserContext } from "../src/lib/sentry";