Add UI tests, fastlane, and screenshot automation

- Add ScreenshotTests for capturing App Store screenshots across tabs
- Add fastlane config for uploading metadata and screenshots to ASC
- Add screenshot capture script for multiple device simulators
- Gitignore review_information (contains personal contact details)

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

Author: madeye

.gitignore

@@ -33,9 +33,10 @@ Pods/
 *.cer
 
 # Fastlane
-fastlane/.env.default
+fastlane/.env*
 fastlane/report.xml
 fastlane/README.md
+fastlane/metadata/review_information/
 
 # App Store Connect keys
 *.p8

BaoLianDengUITests/ScreenshotTests.swift

@@ -0,0 +1,58 @@
+// Copyright (c) 2026 Max Lv <max.c.lv@gmail.com>
+//
+// Licensed under the MIT License. See LICENSE file in the project root for details.
+
+import XCTest
+
+final class ScreenshotTests: XCTestCase {
+
+    private var app: XCUIApplication!
+
+    override func setUpWithError() throws {
+        continueAfterFailure = false
+        app = XCUIApplication()
+        app.launch()
+    }
+
+    /// Tap a tab by its label text. Handles both iPhone (bottom tab bar) and iPad (top tab bar) layouts.
+    private func selectTab(_ label: String) {
+        // iPhone: standard tab bar at the bottom
+        let tabButton = app.tabBars.buttons[label]
+        if tabButton.waitForExistence(timeout: 2) {
+            tabButton.tap()
+            return
+        }
+
+        // iPad (iOS 18+): tabs render in a top bar as plain buttons, match by label
+        let predicate = NSPredicate(format: "label == %@", label)
+        let button = app.buttons.matching(predicate).firstMatch
+        if button.waitForExistence(timeout: 3) {
+            button.tap()
+            return
+        }
+
+        XCTFail("Tab '\(label)' not found in tab bar or top bar")
+    }
+
+    func testCaptureScreenshots() throws {
+        let tabs: [(name: String, label: String)] = [
+            ("01_Home", "Home"),
+            ("02_Config", "Config"),
+            ("03_Data", "Data"),
+            ("04_Settings", "Settings"),
+        ]
+
+        for tab in tabs {
+            selectTab(tab.label)
+
+            // Allow UI to settle
+            Thread.sleep(forTimeInterval: 1)
+
+            let screenshot = app.windows.firstMatch.screenshot()
+            let attachment = XCTAttachment(screenshot: screenshot)
+            attachment.name = tab.name
+            attachment.lifetime = .keepAlways
+            add(attachment)
+        }
+    }
+}

Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "fastlane"