Fix 23 failing UI tests: accessibility hierarchy, test mode, and interaction issues

App fixes:
- Remove empty_state identifier from EmptyHomeView VStack (was overriding mood_header)
- Fix resetAppState to set needsOnboarding=true (fresh state) instead of false
- Set bypassSubscription explicitly based on launch arg presence (was defaulting to true in DEBUG)

Test fixes:
- TabBarScreen: use coordinate tap to avoid iOS 26 Liquid Glass hittability issues
- SettingsScreen: use coordinate tap for segments, handle Settings label ambiguity with tab bar
- EntryDetailScreen: use mood_button_ identifiers instead of label matching (was matching entry rows)

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

Tests iOS/Screens/TabBarScreen.swift

@@ -22,31 +22,31 @@ struct TabBarScreen {
 
     @discardableResult
     func tapDay() -> DayScreen {
-        dayTab.tapWhenReady()
+        tapTab(dayTab)
         return DayScreen(app: app)
     }
 
     @discardableResult
     func tapMonth() -> TabBarScreen {
-        monthTab.tapWhenReady()
+        tapTab(monthTab)
         return self
     }
 
     @discardableResult
     func tapYear() -> TabBarScreen {
-        yearTab.tapWhenReady()
+        tapTab(yearTab)
         return self
     }
 
     @discardableResult
     func tapInsights() -> TabBarScreen {
-        insightsTab.tapWhenReady()
+        tapTab(insightsTab)
         return self
     }
 
     @discardableResult
     func tapSettings() -> SettingsScreen {
-        settingsTab.tapWhenReady()
+        tapTab(settingsTab)
         return SettingsScreen(app: app)
     }
 
@@ -59,4 +59,13 @@ struct TabBarScreen {
     func assertTabBarVisible() {
         XCTAssertTrue(dayTab.waitForExistence(timeout: 5), "Tab bar should be visible")
     }
+
+    // MARK: - Private
+
+    /// Tap a tab bar button. Uses coordinate tap to avoid iOS 26 Liquid Glass
+    /// overlay elements reporting buttons as not hittable.
+    private func tapTab(_ tab: XCUIElement) {
+        _ = tab.waitForExistence(timeout: 5)
+        tab.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)).tap()
+    }
 }