Fix 10 failing UI tests: kanban scroll, menu-based edit, form submit reliability

- Screens.swift: findTask() now scrolls through kanban columns (swipe left/right)
  to locate tasks rendered off-screen in LazyHGrid
- Suite5: test06/07 use refreshTasks() instead of pullToRefresh() (kanban is
  horizontal), add API call before navigate for server processing delay
- Suite6: test09 opens "Task actions" menu before tapping edit (no detail screen)
- Suite8: submitForm() uses coordinate-based keyboard dismiss, retry tap, and
  longer timeout; test22/23 re-navigate after creation and use waitForExistence

Test results: 141/143 passed (was 131/143). Remaining 2 failures are pre-existing
(Suite1 test11) and flaky/unrelated (Suite3 testR307).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

iosApp/HoneyDueUITests/Suite5_TaskTests.swift

@@ -100,18 +100,18 @@ final class Suite5_TaskTests: AuthenticatedUITestCase {
         // Wait for form to dismiss
         _ = saveButton.waitForNonExistence(timeout: navigationTimeout)
 
-        // Verify task appears in list (may need refresh or scroll in kanban view)
-        let newTask = app.staticTexts.containing(NSPredicate(format: "label CONTAINS %@", taskTitle)).firstMatch
-        if !newTask.waitForExistence(timeout: navigationTimeout) {
-            pullToRefresh()
-        }
-        XCTAssertTrue(newTask.waitForExistence(timeout: navigationTimeout), "New task '\(taskTitle)' should appear in the list")
-
-        // Track for cleanup
+        // Verify task was created via API (also gives the server time to process)
         if let items = TestAccountAPIClient.listTasks(token: session.token),
            let created = items.first(where: { $0.title.contains(taskTitle) }) {
             cleaner.trackTask(created.id)
         }
+
+        // Navigate to tasks tab and refresh to pick up the newly created task
+        navigateToTasks()
+        refreshTasks()
+        let taskListScreen = TaskListScreen(app: app)
+        let newTask = taskListScreen.findTask(title: taskTitle)
+        XCTAssertTrue(newTask.waitForExistence(timeout: loginTimeout), "New task '\(taskTitle)' should appear in the list")
     }
 
     // MARK: - 4. View Details
@@ -133,24 +133,23 @@ final class Suite5_TaskTests: AuthenticatedUITestCase {
         saveButton.tap()
         _ = saveButton.waitForNonExistence(timeout: navigationTimeout)
 
-        // Find and tap the task (may need refresh)
-        let taskCard = app.staticTexts.containing(NSPredicate(format: "label CONTAINS %@", taskTitle)).firstMatch
-        if !taskCard.waitForExistence(timeout: navigationTimeout) {
-            pullToRefresh()
-        }
-        taskCard.waitForExistenceOrFail(timeout: navigationTimeout, message: "Created task should appear in list")
-
+        // Verify task was created via API (also gives the server time to process)
         if let items = TestAccountAPIClient.listTasks(token: session.token),
            let created = items.first(where: { $0.title.contains(taskTitle) }) {
             cleaner.trackTask(created.id)
         }
 
-        taskCard.tap()
+        // Navigate to tasks tab and refresh to pick up the newly created task
+        navigateToTasks()
+        refreshTasks()
+        let taskListScreen = TaskListScreen(app: app)
+        let taskCard = taskListScreen.findTask(title: taskTitle)
+        taskCard.waitForExistenceOrFail(timeout: loginTimeout, message: "Created task should appear in list")
 
-        // After tapping a task, the app should show task details or actions.
-        // The navigation bar title or a detail view element should appear.
-        let navBar = app.navigationBars.firstMatch
-        XCTAssertTrue(navBar.waitForExistence(timeout: navigationTimeout), "Task detail view should load after tap")
+        // Verify the task card is accessible and the actions menu exists
+        // (There is no task detail screen — cards are self-contained with a context menu)
+        let actionsMenu = app.buttons["Task actions"].firstMatch
+        XCTAssertTrue(actionsMenu.waitForExistence(timeout: navigationTimeout), "Task actions menu should be accessible")
     }
 
     // MARK: - 5. Navigation