Rebrand from Casera/MyCrib to honeyDue

Total rebrand across KMM project:
- Kotlin package: com.example.casera -> com.tt.honeyDue (dirs + declarations)
- Gradle: rootProject.name, namespace, applicationId
- Android: manifest, strings.xml (all languages), widget resources
- iOS: pbxproj bundle IDs, Info.plist, entitlements, xcconfig
- iOS directories: Casera/ -> HoneyDue/, CaseraTests/ -> HoneyDueTests/, etc.
- Swift source: all class/struct/enum renames
- Deep links: casera:// -> honeydue://, .casera -> .honeydue
- App icons replaced with honeyDue honeycomb icon
- Domains: casera.treytartt.com -> honeyDue.treytartt.com
- Bundle IDs: com.tt.casera -> com.tt.honeyDue
- Database table names preserved

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

iosApp/HoneyDueUITests/PageObjects/BaseScreen.swift

@@ -0,0 +1,97 @@
+import XCTest
+
+/// Base class for all page objects providing common waiting and assertion utilities.
+///
+/// Replaces ad-hoc `sleep()` calls with condition-based waits for reliable,
+/// non-flaky UI tests. All screen page objects should inherit from this class.
+class BaseScreen {
+    let app: XCUIApplication
+    let timeout: TimeInterval
+
+    init(app: XCUIApplication, timeout: TimeInterval = 10) {
+        self.app = app
+        self.timeout = timeout
+    }
+
+    // MARK: - Wait Helpers (replaces fixed sleeps)
+
+    /// Waits for an element to exist within the timeout period.
+    /// Fails the test with a descriptive message if the element does not appear.
+    @discardableResult
+    func waitForElement(_ element: XCUIElement, timeout: TimeInterval? = nil) -> XCUIElement {
+        let t = timeout ?? self.timeout
+        XCTAssertTrue(element.waitForExistence(timeout: t), "Element \(element) did not appear within \(t)s")
+        return element
+    }
+
+    /// Waits for an element to disappear within the timeout period.
+    /// Fails the test if the element is still present after the timeout.
+    func waitForElementToDisappear(_ element: XCUIElement, timeout: TimeInterval? = nil) {
+        let t = timeout ?? self.timeout
+        let predicate = NSPredicate(format: "exists == false")
+        let expectation = XCTNSPredicateExpectation(predicate: predicate, object: element)
+        let result = XCTWaiter().wait(for: [expectation], timeout: t)
+        XCTAssertEqual(result, .completed, "Element \(element) did not disappear within \(t)s")
+    }
+
+    /// Waits for an element to become hittable (visible and interactable).
+    /// Returns the element for chaining.
+    @discardableResult
+    func waitForHittable(_ element: XCUIElement, timeout: TimeInterval? = nil) -> XCUIElement {
+        let t = timeout ?? self.timeout
+        let predicate = NSPredicate(format: "isHittable == true")
+        let expectation = XCTNSPredicateExpectation(predicate: predicate, object: element)
+        _ = XCTWaiter().wait(for: [expectation], timeout: t)
+        return element
+    }
+
+    /// Waits until a condition evaluates to true, polling every 0.5s.
+    /// More flexible than element-based waits for complex state checks.
+    func waitForCondition(
+        _ description: String,
+        timeout: TimeInterval? = nil,
+        condition: () -> Bool
+    ) -> Bool {
+        let t = timeout ?? self.timeout
+        let deadline = Date().addingTimeInterval(t)
+        while Date() < deadline {
+            if condition() { return true }
+            RunLoop.current.run(until: Date().addingTimeInterval(0.5))
+        }
+        return false
+    }
+
+    /// Waits for an element to exist, then taps it. Convenience for the common wait+tap pattern.
+    @discardableResult
+    func tapElement(_ element: XCUIElement, timeout: TimeInterval? = nil) -> XCUIElement {
+        waitForElement(element, timeout: timeout)
+        element.tap()
+        return element
+    }
+
+    // MARK: - State Assertions
+
+    /// Asserts that an element with the given accessibility identifier exists.
+    func assertExists(_ identifier: String, file: StaticString = #file, line: UInt = #line) {
+        let element = app.descendants(matching: .any)[identifier]
+        XCTAssertTrue(element.waitForExistence(timeout: timeout), "Element '\(identifier)' not found", file: file, line: line)
+    }
+
+    /// Asserts that an element with the given accessibility identifier does not exist.
+    func assertNotExists(_ identifier: String, file: StaticString = #file, line: UInt = #line) {
+        let element = app.descendants(matching: .any)[identifier]
+        XCTAssertFalse(element.exists, "Element '\(identifier)' should not exist", file: file, line: line)
+    }
+
+    // MARK: - Navigation
+
+    /// Taps the first button in the navigation bar (typically the back button).
+    func tapBackButton() {
+        app.navigationBars.buttons.element(boundBy: 0).tap()
+    }
+
+    /// Subclasses must override this property to indicate whether the screen is currently displayed.
+    var isDisplayed: Bool {
+        fatalError("Subclasses must override isDisplayed")
+    }
+}