Add 3 passing UI tests (batch 3): deep links and trial expiration

TC-125: feels://subscribe deep link opens subscription view
TC-126: Malformed deep link (feels://invalidpath) does not crash
TC-078: Trial expired state shows "Trial expired" banner in Settings

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

Tests iOS/TrialExpirationTests.swift

@@ -0,0 +1,34 @@
+//
+//  TrialExpirationTests.swift
+//  Tests iOS
+//
+//  TC-078: Trial expiration state is reflected in the UI.
+//
+
+import XCTest
+
+final class TrialExpirationTests: BaseUITestCase {
+    override var seedFixture: String? { "empty" }
+    override var bypassSubscription: Bool { false }
+    override var expireTrial: Bool { true }
+
+    /// TC-078: When trial is expired, Settings shows "Trial expired" text
+    /// and the upgrade banner is visible.
+    func testTrialExpired_ShowsExpiredBanner() {
+        let tabBar = TabBarScreen(app: app)
+        let settingsScreen = tabBar.tapSettings()
+        settingsScreen.assertVisible()
+
+        // Verify upgrade banner is visible (trial expired, not subscribed)
+        settingsScreen.assertUpgradeBannerVisible()
+
+        // Check for "Trial expired" text in the banner
+        let expiredText = app.staticTexts["Trial expired"]
+        XCTAssertTrue(
+            expiredText.waitForExistence(timeout: 5),
+            "Settings should show 'Trial expired' text when trial has expired"
+        )
+
+        captureScreenshot(name: "trial_expired_banner")
+    }
+}