refactor(config): 服务地址改为 dev/prod 配置文件与单个环境开关

启动时按环回、局域网、公网顺序探测地址，换网络后会静默切到别处，排查
困难。改为代码内一个布尔开关选择环境，地址分别放在 dev_config.dart 与
prod_config.dart，不再探测；调试条改地址后直接重载，不再重新探测。
release 构建若仍是开发开关会启动即报错，避免线上包连开发机。

lib/core/config/app_config.dart

@@ -1,173 +1,51 @@
 // Author: fruit.com.cn
 
-import 'dart:io';
+import 'dev_config.dart';
+import 'prod_config.dart';
 
-import 'package:flutter/foundation.dart';
-
-/// 客户端与后端约定的运行时配置。
+/// 客户端运行时配置。
 ///
-/// 接口地址优先级：运行时设置 > `--dart-define=API_BASE_URL=...` > 平台默认值。
-/// 开发机的局域网地址会随网络变化，换网络后改 [devHostBaseUrl] 即可。
-class AppConfig {
-  const AppConfig._();
-
-  /// 开发调试默认服务地址，当前指向本机局域网 IP。
+/// 两套环境各一个文件：
+/// - `dev_config.dart`：[DevConfig]（本机联调）
+/// - `prod_config.dart`：[ProdConfig]（生产）
+///
+/// 切换环境只改下面这一个布尔值，不用传任何构建参数、也不做网络探测。
+abstract final class AppConfig {
+  /// **环境开关**：true 用开发环境，false 用生产环境。
   ///
-  /// 换网络时只改这一行，地址不要带结尾斜杠。
-  static const String devHostBaseUrl = 'http://192.168.31.243:8081';
+  /// 打生产包前必须改成 false；release 构建若仍为 true 会在启动时直接报错。
+  static const bool useDevConfig = true;
 
-  /// 本机后端地址：通过 `adb reverse tcp:8081 tcp:8081` 映射到开发机，
-  /// 探测可达时 App 直连本机服务；不可达时回落到公网地址。
-  static const String lanBaseUrl = 'http://127.0.0.1:8081';
-
-  /// 公网地址（远程/移动网络访问时使用）。
-  static const String publicBaseUrl = 'http://39.162.50.99:8081';
-
-  static const String _overrideBaseUrl = String.fromEnvironment('API_BASE_URL');
+  /// 当前选中的环境地址。
+  static String get baseUrl =>
+      useDevConfig ? DevConfig.baseUrl : ProdConfig.baseUrl;
 
+  /// 调试面板手改的地址（见 `ServerEndpoint`）；为空表示用上面的环境地址。
   static String _runtimeBaseUrl = '';
 
+  /// 启动期异步准备（iOS 无线数据权限弹窗），目录请求前等待它。
   static Future<void>? _ready;
 
-  /// 启动地址探测完成信号；默认已完成，避免影响既有测试与调用方。
+  /// 启动准备完成信号；默认已完成，避免影响既有测试与调用方。
   static Future<void> get ready => _ready ?? Future<void>.value();
   static set ready(Future<void> value) => _ready = value;
 
-  static const Duration _probeTimeout = Duration(seconds: 2);
-  static const List<String> _probeCandidates = [
-    lanBaseUrl,
-    devHostBaseUrl,
-    if (devHostBaseUrl != publicBaseUrl) publicBaseUrl,
-  ];
+  static const Duration requestTimeout = Duration(seconds: 8);
 
-  /// Build-time server URL supplied through `--dart-define=API_BASE_URL`.
-  static String get compiledBaseUrl => _overrideBaseUrl;
+  /// 实际使用的服务地址：运行时手改优先，否则用环境开关选中的地址。
+  static String get apiBaseUrl =>
+      _runtimeBaseUrl.isNotEmpty ? _runtimeBaseUrl : baseUrl;
 
-  /// Existing platform-aware fallback used when no runtime or build override exists.
-  static String get defaultBaseUrl => _defaultBaseUrl;
-
-  /// Effective server URL, including the debug-only runtime override.
-  static String get apiBaseUrl => _runtimeBaseUrl.isNotEmpty
-      ? _runtimeBaseUrl
-      : (compiledBaseUrl.isNotEmpty ? compiledBaseUrl : defaultBaseUrl);
-
-  /// 生产包固定走公网地址；仅 debug 才按平台默认到环回/开发机。
-  static final String _defaultBaseUrl = kReleaseMode
-      ? publicBaseUrl
-      : (_runsOnDevMachine
-            ? lanBaseUrl
-            : devHostBaseUrl);
-
-  /// 模拟器、桌面端与开发机同机，环回地址可用；iOS 真机不满足。
-  /// Android 没有等价的探测方式，统一按真机处理（模拟器用
-  /// `--dart-define=API_BASE_URL=http://10.0.2.2:8081` 覆盖）。
-  static final bool _runsOnDevMachine =
-      kIsWeb ||
-      defaultTargetPlatform == TargetPlatform.macOS ||
-      defaultTargetPlatform == TargetPlatform.windows ||
-      defaultTargetPlatform == TargetPlatform.linux ||
-      (defaultTargetPlatform == TargetPlatform.iOS &&
-          Platform.environment.containsKey('SIMULATOR_DEVICE_NAME'));
-
-  /// Applies an already normalized runtime URL. Passing null clears it.
+  /// 应用一个已经规范化的运行时地址；传 null 表示清除。
   static void applyRuntimeBaseUrl(String? value) {
     _runtimeBaseUrl = value ?? '';
   }
 
-  /// Clears the in-memory runtime override, mainly for tests and restarts.
+  /// 清除运行时地址，主要给测试与重启流程用。
   static void clearRuntimeBaseUrl() {
     _runtimeBaseUrl = '';
   }
 
-  static const Duration requestTimeout = Duration(seconds: 8);
-
-  /// 按环回、开发机、公网顺序探测，写入首个返回 200 的地址。
-  ///
-  /// 全部不可达时使用平台默认地址，真机保留开发机地址，避免退回公网。
-  static Future<void> probeAndApplyBaseUrl({
-    Future<bool> Function(String baseUrl)? probe,
-    String? fallbackBaseUrl,
-
-    /// 编译期地址测试注入；未传时读取 `API_BASE_URL`。
-    String? compiledOverride,
-  }) async {
-    final compiled = compiledOverride ?? compiledBaseUrl;
-    if (compiled.isNotEmpty) {
-      if (_runtimeBaseUrl.isEmpty) applyRuntimeBaseUrl(compiled);
-      return;
-    }
-    // 生产包固定公网地址，不再探测环回/开发机局域网地址，避免请求到开发机。
-    if (kReleaseMode) {
-      if (_runtimeBaseUrl.isEmpty) applyRuntimeBaseUrl(publicBaseUrl);
-      return;
-    }
-    final candidates = <String>[
-      if (_runtimeBaseUrl.isNotEmpty) _runtimeBaseUrl,
-      for (final candidate in _probeCandidates)
-        if (candidate != _runtimeBaseUrl) candidate,
-    ];
-    final results = await Future.wait([
-      for (final candidate in candidates)
-        probe == null
-            ? _probeBaseUrl(candidate)
-            : _runInjectedProbe(candidate, probe),
-    ]);
-    for (var index = 0; index < candidates.length; index++) {
-      final candidate = candidates[index];
-      final result = results[index];
-      if (kDebugMode) {
-        final status = result.ok
-            ? 'ok'
-            : 'fail(${result.reason ?? 'request failed'})';
-        debugPrint('[probe] $candidate -> $status');
-      }
-      if (result.ok) {
-        applyRuntimeBaseUrl(candidate);
-        return;
-      }
-    }
-    applyRuntimeBaseUrl(fallbackBaseUrl ?? defaultBaseUrl);
-  }
-
-  static Future<_ProbeResult> _runInjectedProbe(
-    String baseUrl,
-    Future<bool> Function(String baseUrl) probe,
-  ) async {
-    try {
-      return _ProbeResult(ok: await probe(baseUrl));
-    } catch (error) {
-      return _ProbeResult(ok: false, reason: error.toString());
-    }
-  }
-
-  static Future<_ProbeResult> _probeBaseUrl(String baseUrl) async {
-    final client = HttpClient()..connectionTimeout = _probeTimeout;
-    try {
-      return await _requestCategories(
-        client,
-        Uri.parse('$baseUrl/app/categories'),
-      ).timeout(_probeTimeout);
-    } catch (error) {
-      return _ProbeResult(ok: false, reason: error.toString());
-    } finally {
-      client.close(force: true);
-    }
-  }
-
-  static Future<_ProbeResult> _requestCategories(
-    HttpClient client,
-    Uri uri,
-  ) async {
-    final request = await client.getUrl(uri);
-    final response = await request.close();
-    await response.drain<void>();
-    final ok = response.statusCode == 200;
-    return _ProbeResult(
-      ok: ok,
-      reason: ok ? null : 'HTTP ${response.statusCode}',
-    );
-  }
-
   /// 后端返回的是相对路径（/files/...），这里补上服务地址。
   static String mediaUrl(String path) {
     if (path.isEmpty) return '';
@@ -175,10 +53,3 @@ class AppConfig {
     return '$apiBaseUrl$path';
   }
 }
-
-class _ProbeResult {
-  const _ProbeResult({required this.ok, this.reason});
-
-  final bool ok;
-  final String? reason;
-}

lib/core/config/dev_config.dart

@@ -0,0 +1,9 @@
+// Author: fruit.com.cn
+
+/// 开发环境配置。
+///
+/// 本机联调用：换 Wi-Fi、换网段后只改这里的 [baseUrl]，地址不要带结尾斜杠。
+abstract final class DevConfig {
+  /// 开发机后端地址。
+  static const String baseUrl = 'http://192.168.31.243:8081';
+}

lib/core/config/prod_config.dart

@@ -0,0 +1,9 @@
+// Author: fruit.com.cn
+
+/// 生产环境配置。
+///
+/// 发版前确认这里的 [baseUrl]，地址不要带结尾斜杠。
+abstract final class ProdConfig {
+  /// 生产后端地址。
+  static const String baseUrl = 'http://39.162.50.99:8081';
+}

lib/core/config/server_endpoint.dart

@@ -22,16 +22,9 @@ abstract final class ServerEndpoint {
     return value.replaceFirst(RegExp(r'/+$'), '');
   }
 
-  /// Resolves runtime > dart-define > default using normalized valid values.
-  static String resolve({
-    required String? stored,
-    required String compiled,
-    required String fallback,
-  }) {
-    return normalize(stored) ??
-        normalize(compiled) ??
-        normalize(fallback) ??
-        fallback;
+  /// 运行时手改优先，其次构建期默认地址；两者都必须先通过规范校验。
+  static String resolve({required String? stored, required String fallback}) {
+    return normalize(stored) ?? normalize(fallback) ?? fallback;
   }
 
   /// Loads the persisted override before the app creates its ApiClient.
@@ -46,11 +39,7 @@ abstract final class ServerEndpoint {
       final prefs = preferences ?? SharedPreferencesAsync();
       final stored = await prefs.getString(preferenceKey);
       AppConfig.applyRuntimeBaseUrl(
-        resolve(
-          stored: stored,
-          compiled: AppConfig.compiledBaseUrl,
-          fallback: AppConfig.defaultBaseUrl,
-        ),
+        resolve(stored: stored, fallback: AppConfig.baseUrl),
       );
     } catch (_) {
       AppConfig.clearRuntimeBaseUrl();

lib/core/data/services/catalog_retry.dart

@@ -1,12 +0,0 @@
-// Author: fruit.com.cn
-
-import '../../config/app_config.dart';
-
-/// 重新探测服务地址后再加载指定目录数据。
-Future<void> retryCatalogLoad({
-  required Future<void> Function() reload,
-  Future<void> Function()? probe,
-}) async {
-  await (probe ?? AppConfig.probeAndApplyBaseUrl)();
-  await reload();
-}

lib/core/widgets/catalog_endpoint_editor.dart

@@ -15,12 +15,11 @@ const String _invalid = '请输入合法地址，例如 http://192.168.1.10:8081
 const String _saveFailed = '服务地址保存失败';
 const String _localNetworkHint = '手机需与电脑同一 Wi-Fi，并在 iOS 设置-隐私与安全性-本地网络 中允许本应用';
 
-/// Debug 下编辑服务地址，保存后重新探测并加载目录。
+/// Debug 下编辑服务地址，保存后立即按新地址重新加载目录。
 Future<void> showCatalogEndpointEditor(
   BuildContext context, {
   required Future<void> Function() reload,
   Future<bool> Function(String value)? save,
-  Future<void> Function()? probe,
 }) async {
   if (!kDebugMode) return;
   final value = await showDialog<String>(
@@ -37,7 +36,6 @@ Future<void> showCatalogEndpointEditor(
     }
     return;
   }
-  await (probe ?? () => AppConfig.probeAndApplyBaseUrl())();
   await reload();
 }
 

lib/main.dart

@@ -13,10 +13,14 @@ import 'core/platform/wireless_data_prompt.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  // 生产包不能连开发机：忘了改开关时宁可启动即失败。
+  if (kReleaseMode && AppConfig.useDevConfig) {
+    throw StateError('release 构建请把 AppConfig.useDevConfig 改成 false');
+  }
   await ServerEndpoint.load();
   AppConfig.ready = WirelessDataPrompt.awaitDecision(
     enabled: !kIsWeb && defaultTargetPlatform == TargetPlatform.iOS,
-  ).then((_) => AppConfig.probeAndApplyBaseUrl());
+  );
   runApp(const LumaDramaApp());
   unawaited(
     SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]),

lib/pages/discover/discover_view.dart

@@ -10,7 +10,6 @@ import 'package:provider/provider.dart';
 import '../../core/data/models/drama.dart';
 import '../../core/data/repositories/catalog_repository.dart';
 import '../../core/data/repositories/search_repository.dart';
-import '../../core/data/services/catalog_retry.dart';
 import '../../core/data/services/category_controller.dart';
 import '../../core/data/services/theater_feed_controller.dart';
 import '../../core/formatting/error_text.dart';
@@ -408,15 +407,11 @@ class _DiscoverPageState extends State<DiscoverPage> {
   );
 
   Future<void> _retryCategories(CategoryController categories) {
-    return retryCatalogLoad(reload: categories.load);
+    return categories.load();
   }
 
-  Future<void> _retryTheater() async {
-    await retryCatalogLoad(
-      reload: () async {
-        await theater.refreshCurrent();
-      },
-    );
+  Future<void> _retryTheater() {
+    return theater.refreshCurrent();
   }
 
   Future<void> _editTheaterEndpoint() {

lib/pages/home/home_view.dart

@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 
-import '../../core/config/app_config.dart';
 import '../../core/data/remote/catalog_api.dart';
 import '../../core/data/services/home_feed_controller.dart';
 import '../../core/data/services/catalog_controller.dart';
@@ -67,7 +66,7 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
   ) async {
     _resumeRetryInFlight = true;
     try {
-      await AppConfig.probeAndApplyBaseUrl();
+      // 地址是构建期常量，回前台只需要重试失败的数据请求。
       await Future.wait([
         if (catalog.error != null) catalog.load(),
         if (categories.error != null) categories.load(),
@@ -80,10 +79,7 @@ class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
   @override
   Widget build(BuildContext context) {
     final catalog = context.watch<CatalogController>();
-    return Theme(
-      data: AppTheme.dark(),
-      child: _buildHome(context, catalog),
-    );
+    return Theme(data: AppTheme.dark(), child: _buildHome(context, catalog));
   }
 
   Widget _buildHome(BuildContext context, CatalogController catalog) {

test/config/server_endpoint_test.dart

@@ -1,4 +1,4 @@
-import 'dart:async';
+// Author: fruit.com.cn
 
 import 'package:flutter_test/flutter_test.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -6,6 +6,8 @@ import 'package:shared_preferences_platform_interface/in_memory_shared_preferenc
 import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
 
 import 'package:fruitshorts/core/config/app_config.dart';
+import 'package:fruitshorts/core/config/dev_config.dart';
+import 'package:fruitshorts/core/config/prod_config.dart';
 import 'package:fruitshorts/core/config/server_endpoint.dart';
 
 void main() {
@@ -35,11 +37,10 @@ void main() {
     expect(ServerEndpoint.normalize('http://'), isNull);
   });
 
-  test('should_prioritize_runtime_over_dart_define_over_default', () {
+  test('should_prefer_valid_stored_url_over_build_default', () {
     expect(
       ServerEndpoint.resolve(
         stored: ' http://runtime.test:8081/ ',
-        compiled: 'http://define.test:8081',
         fallback: 'http://default.test:8081',
       ),
       'http://runtime.test:8081',
@@ -47,173 +48,57 @@ void main() {
     expect(
       ServerEndpoint.resolve(
         stored: 'ftp://invalid',
-        compiled: 'http://define.test:8081/',
-        fallback: 'http://default.test:8081',
+        fallback: 'http://default.test:8081/',
       ),
-      'http://define.test:8081',
+      'http://default.test:8081',
     );
     expect(
       ServerEndpoint.resolve(
         stored: null,
-        compiled: '',
-        fallback: 'http://default.test:8081/',
+        fallback: 'http://default.test:8081',
       ),
       'http://default.test:8081',
     );
   });
 
-  test('should_use_the_configured_local_address_for_device_default', () {
-    final uri = Uri.parse(AppConfig.devHostBaseUrl);
-    expect(uri.scheme, 'http');
-    expect(uri.host, isNotEmpty);
-    expect(uri.port, 8081);
-    expect(uri.path, isEmpty);
+  test('should_pick_address_by_environment_switch', () {
+    // 仓库里的开关默认指向开发环境。
+    expect(AppConfig.useDevConfig, isTrue);
+    expect(AppConfig.baseUrl, DevConfig.baseUrl);
+    expect(AppConfig.apiBaseUrl, DevConfig.baseUrl);
+    expect(Uri.parse(AppConfig.baseUrl).port, 8081);
   });
 
-  test('should_skip_probe_when_compiled_override_is_set', () async {
-    const compiled = 'http://compiled.test:8081';
-    var probeCalls = 0;
+  test('should_keep_dev_and_prod_addresses_in_separate_files', () {
+    final dev = Uri.parse(DevConfig.baseUrl);
+    final prod = Uri.parse(ProdConfig.baseUrl);
 
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: compiled,
-      probe: (_) async {
-        probeCalls++;
-        return true;
-      },
-    );
-
-    expect(probeCalls, 0);
-    expect(AppConfig.apiBaseUrl, compiled);
+    expect(dev.scheme, 'http');
+    expect(dev.port, 8081);
+    expect(dev.path, isEmpty);
+    expect(prod.scheme, 'http');
+    expect(prod.port, 8081);
+    expect(prod.path, isEmpty);
+    expect(DevConfig.baseUrl, isNot(ProdConfig.baseUrl));
   });
 
-  test('should_keep_runtime_endpoint_when_compiled_override_is_set', () async {
-    const runtime = 'http://runtime.test:8081';
-    const compiled = 'http://compiled.test:8081';
-    var probeCalls = 0;
-    AppConfig.applyRuntimeBaseUrl(runtime);
+  test('should_prefer_runtime_override_over_environment_switch', () {
+    AppConfig.applyRuntimeBaseUrl('http://runtime.test:8081');
 
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: compiled,
-      probe: (_) async {
-        probeCalls++;
-        return true;
-      },
-    );
-
-    expect(probeCalls, 0);
-    expect(AppConfig.apiBaseUrl, runtime);
+    expect(AppConfig.apiBaseUrl, 'http://runtime.test:8081');
+    expect(AppConfig.baseUrl, DevConfig.baseUrl);
   });
 
-  test('should_keep_probing_when_compiled_override_is_empty', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      compiledOverride: '',
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == AppConfig.publicBaseUrl;
-      },
+  test('should_append_host_to_relative_media_paths', () {
+    expect(AppConfig.mediaUrl(''), '');
+    expect(
+      AppConfig.mediaUrl('https://cdn.test/a.mp4'),
+      'https://cdn.test/a.mp4',
     );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.publicBaseUrl);
-  });
-
-  test(
-    'should_probe_all_candidates_in_parallel_before_applying_priority',
-    () async {
-      final attempts = <String>[];
-      var active = 0;
-      var maxActive = 0;
-      final allStarted = Completer<void>();
-
-      final probing = AppConfig.probeAndApplyBaseUrl(
-        fallbackBaseUrl: AppConfig.devHostBaseUrl,
-        probe: (baseUrl) async {
-          attempts.add(baseUrl);
-          active++;
-          if (active > maxActive) maxActive = active;
-          if (active == 3) allStarted.complete();
-          await allStarted.future;
-          active--;
-          return baseUrl == AppConfig.lanBaseUrl ||
-              baseUrl == AppConfig.devHostBaseUrl;
-        },
-      );
-
-      await probing.timeout(const Duration(seconds: 1));
-
-      expect(attempts, [
-        AppConfig.lanBaseUrl,
-        AppConfig.devHostBaseUrl,
-        AppConfig.publicBaseUrl,
-      ]);
-      expect(maxActive, 3);
-      expect(AppConfig.apiBaseUrl, AppConfig.lanBaseUrl);
-    },
-  );
-
-  test('should_probe_loopback_then_public_in_order', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      fallbackBaseUrl: AppConfig.devHostBaseUrl,
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == AppConfig.publicBaseUrl;
-      },
+    expect(
+      AppConfig.mediaUrl('/files/a.mp4'),
+      '${AppConfig.apiBaseUrl}/files/a.mp4',
     );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.publicBaseUrl);
-  });
-
-  test('should_use_platform_default_when_all_probes_fail', () async {
-    final attempts = <String>[];
-
-    await AppConfig.probeAndApplyBaseUrl(
-      fallbackBaseUrl: AppConfig.devHostBaseUrl,
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return false;
-      },
-    );
-
-    expect(attempts, [
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, AppConfig.devHostBaseUrl);
-  });
-
-  test('should_probe_explicit_runtime_endpoint_first', () async {
-    const custom = 'http://custom.test:8081';
-    final attempts = <String>[];
-    AppConfig.applyRuntimeBaseUrl(custom);
-
-    await AppConfig.probeAndApplyBaseUrl(
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == custom;
-      },
-    );
-
-    expect(attempts, [
-      custom,
-      AppConfig.lanBaseUrl,
-      AppConfig.devHostBaseUrl,
-      AppConfig.publicBaseUrl,
-    ]);
-    expect(AppConfig.apiBaseUrl, custom);
   });
 
   test('should_apply_stored_url_only_when_debug_is_enabled', () async {

test/core/api_client_test.dart

@@ -136,19 +136,19 @@ void main() {
   });
 
   test(
-    'should_use_probed_endpoint_when_client_was_created_before_probe',
+    'should_follow_runtime_endpoint_applied_after_client_creation',
     () async {
-      const probedBaseUrl = 'http://probed.test:8081';
+      const runtimeBaseUrl = 'http://runtime.test:8081';
       final adapter = FakeHttpAdapter(
         (_) async => FakeHttpResponse(envelope(null)),
       );
       final client = ApiClient(adapter: adapter);
 
-      AppConfig.applyRuntimeBaseUrl(probedBaseUrl);
+      AppConfig.applyRuntimeBaseUrl(runtimeBaseUrl);
       addTearDown(AppConfig.clearRuntimeBaseUrl);
       await client.get('/app/home/feed');
 
-      expect(adapter.requests.single.uri.origin, probedBaseUrl);
+      expect(adapter.requests.single.uri.origin, runtimeBaseUrl);
     },
   );
 }

test/home/catalog_diagnostics_test.dart

@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 import 'package:fruitshorts/core/config/app_config.dart';
-import 'package:fruitshorts/core/data/services/catalog_retry.dart';
 import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/widgets/catalog_endpoint_editor.dart';
 import 'package:fruitshorts/l10n/app_localizations.dart';
@@ -55,20 +54,7 @@ void main() {
     );
   });
 
-  test('should_probe_before_reloading_catalog', () async {
-    final steps = <String>[];
-
-    await retryCatalogLoad(
-      probe: () async => steps.add('probe'),
-      reload: () async => steps.add('load'),
-    );
-
-    expect(steps, ['probe', 'load']);
-  });
-
-  testWidgets('should_save_probe_and_reload_after_valid_endpoint', (
-    tester,
-  ) async {
+  testWidgets('should_save_and_reload_after_valid_endpoint', (tester) async {
     AppConfig.applyRuntimeBaseUrl('http://127.0.0.1:8081');
     final steps = <String>[];
     await _pumpEndpointEditor(
@@ -77,7 +63,6 @@ void main() {
         steps.add('save:$value');
         return true;
       },
-      probe: () async => steps.add('probe'),
       reload: () async => steps.add('load'),
     );
 
@@ -101,12 +86,11 @@ void main() {
     await tester.tap(find.byKey(const Key('catalog-debug-endpoint-save')));
     await tester.pumpAndSettle();
 
-    expect(steps, ['save:http://10.0.0.8:8081', 'probe', 'load']);
+    expect(steps, ['save:http://10.0.0.8:8081', 'load']);
   });
 
   testWidgets('should_reject_invalid_endpoint_without_saving', (tester) async {
     var saves = 0;
-    var probes = 0;
     var loads = 0;
     await _pumpEndpointEditor(
       tester,
@@ -114,7 +98,6 @@ void main() {
         saves++;
         return true;
       },
-      probe: () async => probes++,
       reload: () async => loads++,
     );
 
@@ -134,7 +117,6 @@ void main() {
       findsOneWidget,
     );
     expect(saves, 0);
-    expect(probes, 0);
     expect(loads, 0);
   });
 }
@@ -142,7 +124,6 @@ void main() {
 Future<void> _pumpEndpointEditor(
   WidgetTester tester, {
   required Future<bool> Function(String value) save,
-  required Future<void> Function() probe,
   required Future<void> Function() reload,
 }) async {
   await tester.pumpWidget(
@@ -152,12 +133,7 @@ Future<void> _pumpEndpointEditor(
           body: TextButton(
             key: const Key('open-endpoint-editor'),
             onPressed: () => unawaited(
-              showCatalogEndpointEditor(
-                context,
-                save: save,
-                probe: probe,
-                reload: reload,
-              ),
+              showCatalogEndpointEditor(context, save: save, reload: reload),
             ),
             child: const Text('open'),
           ),

test/playback/video_player_port_test.dart

@@ -18,9 +18,8 @@ void main() {
     );
 
     expect(uri.isAbsolute, isTrue);
-    // Uri.parse().toString() 会把 host 规范成小写，而 devHostBaseUrl 里的
-    // Bonjour 名字带大写（jiangdeMacBook-Air.local）—— 比较时统一小写，
-    // 否则会依赖运行平台（flutter test 里 defaultTargetPlatform 默认是 android）
+    // Uri.parse().toString() 会把 host 规范成小写，而开发地址可能带大写
+    // （Bonjour 名字），比较时统一小写，否则会依赖运行平台。
     expect(
       uri.toString().toLowerCase(),
       '${AppConfig.apiBaseUrl}/files/episode/202610/clip.mp4'.toLowerCase(),