Rearchitect UI test suite for complete, non-flaky coverage against live API

- Migrate Suite4-10, SmokeTests, NavigationCriticalPathTests to AuthenticatedTestCase
  with seeded admin account and real backend login
- Add 34 accessibility identifiers across 11 app views (task completion, profile,
  notifications, theme, join residence, manage users, forms)
- Create FeatureCoverageTests (14 tests) covering previously untested features:
  profile edit, theme selection, notification prefs, task completion, manage users,
  join residence, task templates
- Create MultiUserSharingTests (18 API tests) and MultiUserSharingUITests (8 XCUI
  tests) for full cross-user residence sharing lifecycle
- Add cleanup infrastructure: SuiteZZ_CleanupTests auto-wipes test data after runs,
  cleanup_test_data.sh script for manual reset via admin API
- Add share code API methods to TestAccountAPIClient (generateShareCode, joinWithCode,
  getShareCode, listResidenceUsers, removeUser)
- Fix app bugs found by tests:
  - ResidencesListView join callback now uses forceRefresh:true
  - APILayer invalidates task cache when residence count changes
  - AllTasksView auto-reloads tasks when residence list changes
- Fix test quality: keyboard focus waits, Save/Add button label matching,
  Documents tab label (Docs), remove API verification from UI tests
- DataLayerTests and PasswordResetTests now verify through UI, not API calls

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

iosApp/HoneyDueUITests/Suite9_IntegrationE2ETests.swift

@@ -12,9 +12,7 @@ import XCTest
 ///
 /// IMPORTANT: These tests create real data and require network connectivity.
 /// Run with a test server or dev environment (not production).
-final class Suite9_IntegrationE2ETests: BaseUITestCase {
-    override var includeResetStateLaunchArgument: Bool { false }
-
+final class Suite9_IntegrationE2ETests: AuthenticatedTestCase {
 
     // Test user credentials - unique per test run
     private let timestamp = Int(Date().timeIntervalSince1970)
@@ -48,15 +46,6 @@ final class Suite9_IntegrationE2ETests: BaseUITestCase {
         UITestHelpers.login(app: app, username: username, password: password)
     }
 
-    /// Navigate to a specific tab
-    private func navigateToTab(_ tabName: String) {
-        let tab = app.tabBars.buttons.containing(NSPredicate(format: "label CONTAINS[c] '\(tabName)'")).firstMatch
-        if tab.waitForExistence(timeout: 5) && !tab.isSelected {
-            tab.tap()
-            sleep(2)
-        }
-    }
-
     /// Dismiss keyboard by tapping outside (doesn't submit forms)
     private func dismissKeyboard() {
         let coordinate = app.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.1))
@@ -181,7 +170,7 @@ final class Suite9_IntegrationE2ETests: BaseUITestCase {
         let residenceName = "E2E Test Home \(timestamp)"
 
         // Phase 1: Create residence
-        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton]
+        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton].firstMatch
         XCTAssertTrue(addButton.waitForExistence(timeout: 5), "Add residence button should exist")
         addButton.tap()
         sleep(2)
@@ -380,7 +369,7 @@ final class Suite9_IntegrationE2ETests: BaseUITestCase {
         navigateToTab("Residences")
         sleep(2)
 
-        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton]
+        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton].firstMatch
         if addButton.waitForExistence(timeout: 5) {
             addButton.tap()
             sleep(2)
@@ -437,7 +426,7 @@ final class Suite9_IntegrationE2ETests: BaseUITestCase {
     // MARK: - Helper: Create Minimal Residence
 
     private func createMinimalResidence(name: String) {
-        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton]
+        let addButton = app.buttons[AccessibilityIdentifiers.Residence.addButton].firstMatch
         guard addButton.waitForExistence(timeout: 5) else { return }
 
         addButton.tap()
@@ -516,7 +505,7 @@ final class Suite9_IntegrationE2ETests: BaseUITestCase {
     // MARK: - Helper: Find Add Task Button
 
     private func findAddTaskButton() -> XCUIElement {
-        let addButton = app.buttons[AccessibilityIdentifiers.Task.addButton]
+        let addButton = app.buttons[AccessibilityIdentifiers.Task.addButton].firstMatch
         if addButton.exists {
             return addButton
         }