新增完整 UI Test 回归套件，并完善启动隔离逻辑。

按模块拆分 XCUITest 用例与 Support 基础设施，UI Test 运行时跳过推送与排队 WebSocket，并将 Podfile 最低版本对齐 iOS 16。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkanUITests/Auth/AuthFlowUITests.swift

@@ -0,0 +1,25 @@
+//
+//  AuthFlowUITests.swift
+//  suixinkanUITests
+//
+
+import XCTest
+
+final class AuthFlowUITests: AuthenticatedUITestCase {
+    /// 测试完整登录后可进入主 Tab。
+    func testLoginReachesMainTabs() {
+        XCTAssertTrue(app.isOnMainTabs)
+    }
+
+    /// 测试登录后默认能访问首页和我的 Tab。
+    func testLoggedInUserCanSwitchPrimaryTabs() {
+        TabBarNavigator.select(.home, app: app)
+        XCTAssertTrue(
+            app.application.staticTexts["常用应用"].waitForExistence(timeout: 8)
+                || app.application.staticTexts["请选择景区"].exists
+        )
+
+        TabBarNavigator.select(.profile, app: app)
+        NavigationAssertions.waitForNavigationTitle("个人信息", in: app)
+    }
+}

suixinkanUITests/Auth/LoginSmokeUITests.swift

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+//
+//  LoginSmokeUITests.swift
+//  suixinkanUITests
+//
+
+import XCTest
+
+final class LoginSmokeUITests: XCTestCase {
+    override func setUp() {
+        super.setUp()
+        continueAfterFailure = false
+    }
+
+    /// 测试冷启动会展示登录页关键控件。
+    func testFreshLaunchShowsLoginScreen() {
+        let app = SuixinkanApp(resetState: true).launch(waitForLoading: false)
+
+        XCTAssertTrue(app.application.staticTexts["login.title"].waitForExistence(timeout: 8))
+        XCTAssertTrue(app.application.textFields["login.username"].exists)
+        XCTAssertTrue(
+            app.application.secureTextFields["login.password"].exists
+                || app.application.textFields["login.password"].exists
+        )
+        XCTAssertTrue(app.application.buttons["login.submit"].exists)
+        XCTAssertTrue(app.application.buttons["login.userAgreement"].exists)
+        XCTAssertTrue(app.application.buttons["login.privacyPolicy"].exists)
+    }
+
+    /// 测试未勾选协议时无法直接登录。
+    func testLoginRequiresPrivacyAgreement() throws {
+        let app = SuixinkanApp(resetState: true).launch(waitForLoading: false)
+        guard UITestLaunchConfiguration.credentials != nil else {
+            throw XCTSkip("缺少 UI Test 账号。")
+        }
+
+        let usernameField = app.application.textFields["login.username"]
+        XCTAssertTrue(usernameField.waitForExistence(timeout: 8))
+        XCTAssertFalse(app.application.buttons["login.submit"].isEnabled)
+    }
+
+    /// 测试空密码不会离开登录页。
+    func testEmptyPasswordDoesNotLeaveLoginScreen() throws {
+        let app = SuixinkanApp(resetState: true).launch(waitForLoading: false)
+        let credentials = try UITestLaunchConfiguration.requireCredentials()
+
+        let usernameField = app.application.textFields["login.username"]
+        XCTAssertTrue(usernameField.waitForExistence(timeout: 8))
+        usernameField.tap()
+        usernameField.typeText(credentials.phone)
+
+        let privacyToggle = app.application.buttons["login.privacy"]
+        if privacyToggle.exists {
+            privacyToggle.tap()
+        }
+
+        app.application.buttons["login.submit"].tap()
+        app.waitForGlobalLoadingToDisappear(timeout: 5)
+        XCTAssertTrue(app.isOnLoginScreen)
+    }
+}