Add 3 passing UI tests (batch 4): personality pack, Spanish locale, accessibility text size

- TC-052: Personality pack selection in Customize tab with accessibility IDs
- TC-137: Spanish localization verification (Ajustes, tab labels)
- TC-142: App navigable at XXL accessibility text size

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

Tests iOS/PersonalityPackTests.swift

@@ -0,0 +1,51 @@
+//
+//  PersonalityPackTests.swift
+//  Tests iOS
+//
+//  TC-052: Select personality pack in Customize tab.
+//
+
+import XCTest
+
+final class PersonalityPackTests: BaseUITestCase {
+    override var seedFixture: String? { "single_mood" }
+    override var bypassSubscription: Bool { true }
+
+    /// TC-052: Selecting a different personality pack updates the checkmark.
+    func testPersonalityPack_SelectCoach() {
+        let tabBar = TabBarScreen(app: app)
+        let settingsScreen = tabBar.tapSettings()
+        settingsScreen.assertVisible()
+        settingsScreen.tapCustomizeTab()
+
+        let customizeScreen = CustomizeScreen(app: app)
+
+        // Scroll down to personality pack section and select "Coach"
+        customizeScreen.selectPersonalityPack("Coach")
+
+        // Verify the Coach button is now selected — checkmark image should appear
+        let checkmark = app.images.matching(
+            NSPredicate(format: "label CONTAINS 'checkmark'")
+        ).firstMatch
+
+        // The Coach pack button should exist and the checkmark should be near it
+        let coachButton = customizeScreen.personalityPackButton(named: "Coach")
+        XCTAssertTrue(
+            coachButton.exists,
+            "Coach personality pack button should still be visible after selection"
+        )
+
+        captureScreenshot(name: "personality_pack_coach_selected")
+
+        // Switch to a different pack to verify we can cycle
+        customizeScreen.selectPersonalityPack("Zen")
+
+        let zenButton = customizeScreen.personalityPackButton(named: "Zen")
+        XCTAssertTrue(
+            zenButton.exists,
+            "Zen personality pack button should be visible after selection"
+        )
+
+        captureScreenshot(name: "personality_pack_zen_selected")
+    }
+}