Fix remaining 17 UI test failures: group defaults, identifiers, hittability, date format

- resetAppState: use correct suite name to clear group defaults (fixes stale subscription state)
- Reorder configureIfNeeded: set expireTrial before IAPManager init
- Add browse_themes_button identifier to CustomizeView Browse Themes button
- Add mood_button_* identifiers to Entry Detail mood grid in NoteEditorView
- Use coordinate-based tap throughout all test screens (iOS 26 Liquid Glass hittability)
- Fix HeaderMoodLogging date format: M/d/yyyy → yyyy/MM/dd to match entry_row identifiers
- AppLaunchTests: wait for isSelected state with NSPredicate instead of immediate check
- OnboardingTests: add waits between swipes and retry logic for skip button

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

Tests iOS/Screens/CustomizeScreen.swift

@@ -32,25 +32,26 @@ struct CustomizeScreen {
 
     func selectTheme(_ name: String) {
         let button = themeButton(named: name)
-        button.tapWhenReady()
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     func selectVotingLayout(_ name: String) {
         let button = votingLayoutButton(named: name)
-        // May need to scroll horizontally to find it
-        if !button.isHittable {
+        if button.exists && !button.isHittable {
             app.swipeLeft()
         }
-        button.tapWhenReady()
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     func selectDayViewStyle(_ name: String) {
         let button = dayViewStyleButton(named: name)
-        // May need to scroll horizontally to find it
-        if !button.isHittable {
+        if button.exists && !button.isHittable {
             app.swipeLeft()
         }
-        button.tapWhenReady()
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     // MARK: - Assertions

Tests iOS/Screens/DayScreen.swift

@@ -33,11 +33,11 @@ struct DayScreen {
     /// Tap a mood button by mood name. Waits for the celebration animation to complete.
     func logMood(_ mood: MoodChoice, file: StaticString = #file, line: UInt = #line) {
         let button = moodButton(for: mood)
-        guard button.waitUntilHittable(timeout: 5) else {
-            XCTFail("Mood button '\(mood.rawValue)' not hittable", file: file, line: line)
+        guard button.waitForExistence(timeout: 5) else {
+            XCTFail("Mood button '\(mood.rawValue)' not found", file: file, line: line)
             return
         }
-        button.tap()
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
 
         // Wait for the celebration animation to finish and entry to appear.
         // The mood header disappears after logging today's mood.

Tests iOS/Screens/EntryDetailScreen.swift

@@ -26,20 +26,26 @@ struct EntryDetailScreen {
     // MARK: - Actions
 
     func dismiss() {
-        doneButton.tapWhenReady()
+        let button = doneButton
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     func selectMood(_ mood: MoodChoice) {
         let button = moodButton(for: mood)
-        button.tapWhenReady()
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     func deleteEntry() {
-        deleteButton.tapWhenReady()
+        let button = deleteButton
+        _ = button.waitForExistence(timeout: 5)
+        button.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
         // Confirm the delete alert
         let deleteAlert = app.alerts["Delete Entry"]
         let confirmButton = deleteAlert.buttons["Delete"]
-        confirmButton.tapWhenReady()
+        _ = confirmButton.waitForExistence(timeout: 5)
+        confirmButton.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
     }
 
     // MARK: - Assertions