Kotlin Multiplatform 네이티브 앱으로 전환 (Android + iOS 공용 코드)

TWA 래퍼를 걷어내고 Compose Multiplatform 으로 다시 만들었다. 엔진·UI·모드
전부 commonMain 한 벌이라 Android 와 iOS 가 같은 코드를 쓴다.

- engine/: 웹 JS 엔진을 Kotlin 으로 이식 (SRS+180 킥, 7-bag, T-spin, B2B,
  콤보, All Clear, 점수·레벨). commonTest 28개 통과
- game/: 모드 규칙 + 중력/락딜레이/DAS/ARR 타이밍
- ui/: 네오브루탈 컴포넌트, 메인/솔로시트/인게임/결과/설정
- ui/Responsive.kt: 고정 해상도를 버리고 가용 크기에서 셀 크기·배율 계산.
  폰 세로, 플립 초세로, 플립 커버(소형), 폴드 펼침, 태블릿/아이패드 가로 대응
- androidMain: resizeableActivity + configChanges 로 접기/펴기·회전 시 재시작 없음
- iosMain + iosApp/: MainViewController + SwiftUI 껍데기 + XcodeGen 설정
  (실제 iOS 빌드는 macOS + Xcode 필요)
- scripts/release.sh: 버전 상승 → 테스트 → 서명 빌드 → 태그 → Gitea 릴리스 자동화

app/iosApp/iosApp/ContentView.swift

@@ -0,0 +1,19 @@
+import SwiftUI
+import UIKit
+import ComposeApp
+
+struct ComposeView: UIViewControllerRepresentable {
+    func makeUIViewController(context: Context) -> UIViewController {
+        // Kotlin 쪽 MainViewController() — commonMain 의 App() 을 그대로 띄운다.
+        MainViewControllerKt.MainViewController()
+    }
+
+    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {}
+}
+
+struct ContentView: View {
+    var body: some View {
+        ComposeView()
+            .ignoresSafeArea(.keyboard)
+    }
+}

app/iosApp/iosApp/iOSApp.swift

@@ -0,0 +1,11 @@
+import SwiftUI
+
+@main
+struct iOSApp: App {
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+                .ignoresSafeArea(.all)
+        }
+    }
+}

app/iosApp/project.yml

@@ -0,0 +1,53 @@
+# XcodeGen 설정 — macOS 에서 `xcodegen generate` 로 iosApp.xcodeproj 를 만든다.
+#   brew install xcodegen
+#   cd app/iosApp && xcodegen generate && open iosApp.xcodeproj
+# Gradle 이 만든 ComposeApp.framework 를 링크한다.
+name: iosApp
+options:
+  bundleIdPrefix: kr.tkrmagid
+  deploymentTarget:
+    iOS: "15.0"
+
+settings:
+  base:
+    PRODUCT_BUNDLE_IDENTIFIER: kr.tkrmagid.tetrig
+    MARKETING_VERSION: "2.0.0"
+    CURRENT_PROJECT_VERSION: "2"
+    SWIFT_VERSION: "5.0"
+    TARGETED_DEVICE_FAMILY: "1,2"   # iPhone + iPad
+    ENABLE_USER_SCRIPT_SANDBOXING: NO
+
+targets:
+  iosApp:
+    type: application
+    platform: iOS
+    sources:
+      - path: iosApp
+    info:
+      path: iosApp/Info.plist
+      properties:
+        CFBundleDisplayName: TETRIG
+        UILaunchScreen: {}
+        UISupportedInterfaceOrientations:
+          - UIInterfaceOrientationPortrait
+          - UIInterfaceOrientationLandscapeLeft
+          - UIInterfaceOrientationLandscapeRight
+        UISupportedInterfaceOrientations~ipad:
+          - UIInterfaceOrientationPortrait
+          - UIInterfaceOrientationPortraitUpsideDown
+          - UIInterfaceOrientationLandscapeLeft
+          - UIInterfaceOrientationLandscapeRight
+        UIRequiresFullScreen: false
+    settings:
+      base:
+        FRAMEWORK_SEARCH_PATHS:
+          - "$(SRCROOT)/../composeApp/build/xcode-frameworks/$(CONFIGURATION)/$(SDK_NAME)"
+        OTHER_LDFLAGS:
+          - "-framework"
+          - "ComposeApp"
+    preBuildScripts:
+      - name: Build Compose framework
+        script: |
+          cd "$SRCROOT/../"
+          ./gradlew :composeApp:embedAndSignAppleFrameworkForXcode
+        basedOnDependencyAnalysis: false