test(client): 新增设备侧集成测试（真机跑通后端可达性）

红线第 10 条（设备验证必须设备侧取证）配套：integration_test/app_backend_test.dart
在手机进程里真实请求 /app/home/feed 与 /app/dramas/{id}，并用真 App 断言首页剧目列表能渲染。
把 API_BASE_URL 打进设备日志，便于区分地址不对与设备连不上。

注意：真机执行由用户负责（用户 20:45 指令），本文件按原样交付、不再改动。
本项目 iOS 用 SPM，无 Podfile，不需要 pod install。

pubspec.lock

@@ -134,6 +134,11 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_driver:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_launcher_icons:
     dependency: "direct dev"
     description:
@@ -165,6 +170,11 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   html:
     dependency: transitive
     description:
@@ -189,6 +199,11 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.12.0"
+  integration_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   intl:
     dependency: transitive
     description:
@@ -333,6 +348,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "6.5.2"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: "4242ba3508d37e01808bdf71ad1d5bb93a8d671bf2e7450e6b1b353fb0808891"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "5.0.6"
   provider:
     dependency: "direct main"
     description:
@@ -434,6 +457,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.4.1"
+  sync_http:
+    dependency: transitive
+    description:
+      name: sync_http
+      sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.3.1"
   term_glyph:
     dependency: transitive
     description:
@@ -522,6 +553,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.1"
+  webdriver:
+    dependency: transitive
+    description:
+      name: webdriver
+      sha256: "28b82ec894fed45dd71c23ba62d1af973ed97dd59a4f5790a4d38b0b13e5657e"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.2.0"
   xdg_directories:
     dependency: transitive
     description: