Fix TokenStorage stale cache bug and add user-friendly error messages

- Fix TokenStorage.getToken() returning stale cached token after login/logout
- Add comprehensive ErrorMessageParser with 80+ error code mappings
- Add Suite9 and Suite10 UI test files for E2E integration testing
- Fix accessibility identifiers in RegisterView and ResidenceFormView
- Fix UITestHelpers logout to target alert button specifically
- Update various UI components with proper accessibility identifiers

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

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

iosApp/iosApp/Contractor/ContractorFormSheet.swift

@@ -82,9 +82,12 @@ struct ContractorFormSheet: View {
                 Section {
                     Button(action: { showingResidencePicker = true }) {
                         HStack {
-                            Image(systemName: "house")
+                            Image("house_outline")
+                                .renderingMode(.template)
+                                .resizable()
+                                .aspectRatio(contentMode: .fit)
+                                .frame(width: 20, height: 20)
                                 .foregroundColor(Color.appPrimary)
-                                .frame(width: 24)
                             Text(selectedResidenceName ?? L10n.Contractors.personalNoResidence)
                                 .foregroundColor(selectedResidenceName == nil ? Color.appTextSecondary.opacity(0.7) : Color.appTextPrimary)
                             Spacer()