feat: Add Fastlane configuration for mobile app deployment

- Add Fastlane scripts for iOS and Android beta/release
- Remove DID generator scripts in favor of mobile deployment
- Update .gitignore for Fastlane artifacts and reports
- Remove Android test results and build artifacts
- Increase deep link test timeout for better reliability

The changes improve mobile deployment by:
1. Adding automated deployment pipelines for iOS/Android
2. Cleaning up build artifacts from version control
3. Improving test reliability with longer timeouts
4. Removing unused DID generator scripts
5. Adding proper gitignore rules for mobile builds

.gitignore

@@ -47,3 +47,15 @@ ios
 # Generated test files
 .generated/
 
+# Fastlane
+ios/fastlane/report.xml
+ios/fastlane/Preview.html
+ios/fastlane/screenshots
+ios/fastlane/test_output
+android/fastlane/report.xml
+android/fastlane/Preview.html
+android/fastlane/screenshots
+android/fastlane/test_output
+.env.default
+vendor/
+