Add 3 passing UI tests (batch 5): heatmap, reduce motion, high contrast

- TC-148: Year View heatmap grid renders with data (added accessibility ID)
- TC-143: App navigable with Reduce Motion enabled
- TC-144: App navigable with High Contrast mode enabled
- Marked 89 blocked tests RED in QA spreadsheet

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

Tests iOS/ReduceMotionTests.swift

@@ -0,0 +1,61 @@
+//
+//  ReduceMotionTests.swift
+//  Tests iOS
+//
+//  TC-143: App remains functional with Reduce Motion enabled.
+//
+
+import XCTest
+
+final class ReduceMotionTests: BaseUITestCase {
+    override var seedFixture: String? { "single_mood" }
+    override var bypassSubscription: Bool { true }
+
+    override func setUp() {
+        // Do NOT call super — we need custom accessibility launch args
+        continueAfterFailure = false
+
+        let application = XCUIApplication()
+        let args: [String] = [
+            "--ui-testing", "--disable-animations",
+            "--reset-state",
+            "--bypass-subscription",
+            "--skip-onboarding",
+            "-AppleLanguages", "(en)",
+            "-AppleLocale", "en_US",
+            "-UIReduceMotionPreference", "YES"
+        ]
+        application.launchArguments = args
+        application.launchEnvironment = ["UI_TEST_FIXTURE": "single_mood"]
+        application.launch()
+        app = application
+    }
+
+    /// TC-143: App is navigable with Reduce Motion enabled.
+    func testReduceMotion_AppRemainsNavigable() {
+        // Day tab should have content
+        assertDayContentVisible()
+
+        captureScreenshot(name: "reduce_motion_day")
+
+        let tabBar = TabBarScreen(app: app)
+
+        // Navigate through tabs
+        tabBar.tapMonth()
+        XCTAssertTrue(
+            tabBar.monthTab.waitForExistence(timeout: 5),
+            "Month tab should work with Reduce Motion"
+        )
+
+        tabBar.tapYear()
+        XCTAssertTrue(
+            tabBar.yearTab.waitForExistence(timeout: 5),
+            "Year tab should work with Reduce Motion"
+        )
+
+        let settingsScreen = tabBar.tapSettings()
+        settingsScreen.assertVisible()
+
+        captureScreenshot(name: "reduce_motion_settings")
+    }
+}