Fix EAS local builds and resolve require cycles

- Add dotenv-cli for EAS local builds to load env vars
- Break circular dependencies in store/hooks imports
- Add env var validation with clear error messages
- Remove hardcoded Sentry auth token from sentry.properties
- Add .ipa files to .gitignore

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

apps/mobile/src/polyfills/crypto.ts

@@ -1,9 +1,9 @@
 /**
  * Crypto polyfill for React Native
- * 
+ *
  * This file must be imported BEFORE any code that uses crypto.
  * It installs react-native-quick-crypto as the global crypto implementation.
- * 
+ *
  * On web, we skip this since the native Web Crypto API is available.
  */
 
@@ -13,17 +13,17 @@ if (Platform.OS !== 'web') {
   try {
     // Import react-native-quick-crypto to install its polyfill
     const QuickCrypto = require('react-native-quick-crypto');
-    
+
     // Install the polyfill globally if not already present
     if (typeof global.crypto === 'undefined') {
       (global as any).crypto = QuickCrypto;
     }
-    
+
     // Also ensure subtle is available
     if (global.crypto && !global.crypto.subtle) {
       (global.crypto as any).subtle = QuickCrypto.subtle;
     }
-    
+
     console.log('[Crypto] react-native-quick-crypto polyfill installed');
   } catch (error) {
     console.error('[Crypto] Failed to install crypto polyfill:', error);