Fix post-registration navigation and add comprehensive registration UI tests

- Fix RegisterView to call AuthenticationManager.login() after email verification
  so user is properly transitioned to home screen instead of returning to login
- Fix ResidencesListView to load data when authentication state becomes true,
  ensuring residences load after registration/login
- Add accessibility identifier to verification code field for UI testing
- Add NSAppTransportSecurity exceptions for localhost/127.0.0.1 for local dev
- Add comprehensive XCUITest suite for registration flow including:
  - Form validation tests (empty fields, invalid email, mismatched passwords)
  - Full registration and verification flow test
  - Logout from verification screen test
  - Helper scripts for test user cleanup

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

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

iosApp/iosApp/Residence/ResidencesListView.swift

@@ -106,7 +106,11 @@ struct ResidencesListView: View {
             .interactiveDismissDisabled()
         }
         .onChange(of: authManager.isAuthenticated) { isAuth in
-            if !isAuth {
+            if isAuth {
+                // User just logged in or registered - load their residences
+                viewModel.loadMyResidences()
+            } else {
+                // User logged out - clear data
                 viewModel.myResidences = nil
             }
         }