diff --git a/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/MainActivity.kt b/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/MainActivity.kt
index 1786215..0e5e888 100644
--- a/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/MainActivity.kt
+++ b/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/MainActivity.kt
@@ -8,5 +8,16 @@ class MainActivity : FlutterActivity() {
         super.configureFlutterEngine(flutterEngine)
         // 上传桥接（P3 Task 7）：MethodChannel 命令 + EventChannel 事件流。
         UploadPlugin.register(applicationContext, flutterEngine)
+        // 运行时权限桥接（P3 Task 9）：POST_NOTIFICATIONS 请求。
+        PermissionPlugin.register(this, flutterEngine)
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray,
+    ) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        PermissionPlugin.onRequestPermissionsResult(requestCode, grantResults)
     }
 }
diff --git a/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/PermissionPlugin.kt b/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/PermissionPlugin.kt
new file mode 100644
index 0000000..b91854c
--- /dev/null
+++ b/apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/PermissionPlugin.kt
@@ -0,0 +1,78 @@
+package com.photolive.photo_live
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Build
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+
+/**
+ * 运行时权限桥接（P3 Task 9）：MethodChannel `photolive/permissions`。
+ *
+ * 当前仅一个方法：requestPostNotifications——Android 13+（TIRAMISU）的
+ * POST_NOTIFICATIONS 运时请求（上传前台服务通知可见性；未授权时传输
+ * 继续，Dart 侧静默降级）。SDK < 33 无需运行时请求，直接回 granted。
+ *
+ * 实现说明：App 全部运行时权限需求仅此一项，有意不引入
+ * permission_handler 依赖（见 Dart 侧 notification_permission.dart 注释）。
+ * 并发请求单飞：仅首个挂起，后续直接回 denied（Dart 侧本就单次语义）。
+ */
+object PermissionPlugin {
+
+    const val CHANNEL = "photolive/permissions"
+    private const val METHOD_REQUEST_POST_NOTIFICATIONS = "requestPostNotifications"
+    private const val REQUEST_CODE = 4101
+
+    private var pending: MethodChannel.Result? = null
+
+    fun register(activity: MainActivity, engine: FlutterEngine) {
+        MethodChannel(engine.dartExecutor.binaryMessenger, CHANNEL).setMethodCallHandler { call, result ->
+            when (call.method) {
+                METHOD_REQUEST_POST_NOTIFICATIONS ->
+                    handleRequestPostNotifications(activity, result)
+                else -> result.notImplemented()
+            }
+        }
+    }
+
+    private fun handleRequestPostNotifications(
+        activity: MainActivity,
+        result: MethodChannel.Result,
+    ) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) {
+            result.success("granted")
+            return
+        }
+        val granted = ContextCompat.checkSelfPermission(
+            activity,
+            Manifest.permission.POST_NOTIFICATIONS,
+        ) == PackageManager.PERMISSION_GRANTED
+        if (granted) {
+            result.success("granted")
+            return
+        }
+        if (pending != null) {
+            // 已有请求在途：本 App 侧为单次语义，直接按未授权回包。
+            result.success("denied")
+            return
+        }
+        pending = result
+        ActivityCompat.requestPermissions(
+            activity,
+            arrayOf(Manifest.permission.POST_NOTIFICATIONS),
+            REQUEST_CODE,
+        )
+    }
+
+    /** MainActivity.onRequestPermissionsResult 转发（回包挂起的首个请求）。 */
+    fun onRequestPermissionsResult(requestCode: Int, grantResults: IntArray) {
+        if (requestCode != REQUEST_CODE) return
+        val result = pending ?: return
+        pending = null
+        val granted = grantResults.isNotEmpty() &&
+            grantResults[0] == PackageManager.PERMISSION_GRANTED
+        result.success(if (granted) "granted" else "denied")
+    }
+}
diff --git a/apps/mobile/lib/app/app.dart b/apps/mobile/lib/app/app.dart
index c67100f..9c93910 100644
--- a/apps/mobile/lib/app/app.dart
+++ b/apps/mobile/lib/app/app.dart
@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../core/api_client.dart';
+import '../features/uploads/engine_scope.dart';
 import '../l10n/app_localizations.dart';
 import '../pages/home_page.dart';
 import '../pages/login_page.dart';
@@ -14,12 +15,15 @@ import 'theme.dart';
 final GlobalKey<NavigatorState> rootNavigatorKey =
     GlobalKey<NavigatorState>();
 
-/// App 根组件：主题 + l10n 委托 + 命名路由 + 401 驱逐接线。
+/// App 根组件：主题 + l10n 委托 + 命名路由 + 401 驱逐接线 + 引擎生命周期。
 ///
 /// 基线路由为命名路由（/login → /home → /password-change）；随页面增长再
 /// 评估是否迁移 go_router，当前保持零额外依赖。
 /// initState 注册 [ApiClient.onUnauthorized]：任意业务端点 401（会话过期）
-/// 即清空栈回到 /login（登录/修改密码端点自身的 401 不触发，见 ApiClient）。
+/// 即清空栈回到 /login（登录/修改密码端点自身的 401 不触发，见 ApiClient），
+/// 并同步刷新会话账号（引擎 stop，任务保留库内）。
+/// build watch [uploadEngineScopeProvider]——App 存续期间引擎随登录态
+/// start/stop（Task 9 接线，见 engine_scope.dart）。
 class PhotoLiveApp extends ConsumerStatefulWidget {
   const PhotoLiveApp({super.key});
 
@@ -34,12 +38,16 @@ class _PhotoLiveAppState extends ConsumerState<PhotoLiveApp> {
     ref.read(apiClientProvider).onUnauthorized = () {
       rootNavigatorKey.currentState
           ?.pushNamedAndRemoveUntil('/login', (route) => false);
+      // 401 已清会话（ApiClient）：刷新账号观察 → 引擎 stop。
+      ref.read(sessionAccountProvider.notifier).refresh();
     };
   }
 
   @override
   Widget build(BuildContext context) {
     final locale = ref.watch(localeSettingsProvider);
+    // 引擎生命周期绑定（常驻 watch；账号在场 start / 离场 stop）。
+    ref.watch(uploadEngineScopeProvider);
     return MaterialApp(
       navigatorKey: rootNavigatorKey,
       onGenerateTitle: (context) => AppLocalizations.of(context).appName,
diff --git a/apps/mobile/lib/core/notification_permission.dart b/apps/mobile/lib/core/notification_permission.dart
new file mode 100644
index 0000000..b897ca9
--- /dev/null
+++ b/apps/mobile/lib/core/notification_permission.dart
@@ -0,0 +1,57 @@
+/// POST_NOTIFICATIONS 运行时权限门（P3 计划 Task 9）。
+///
+/// Android 13+（API 33）起，上传前台服务通知需运行时授权；未授权时
+/// 传输继续、仅通知不显示——**静默降级，永不阻断入队**（技术方案 §6.3）。
+///
+/// 实现取舍（有意不引入 permission_handler）：本 App 全部运行时权限需求
+/// 仅此一项（camera/image_picker 插件自管权限），为单个权限引入
+/// permission_handler 全家桶（AndroidX 传递依赖 + iOS Podfile 宏配置）
+/// 不成比例——复用既有原生桥接模式（Task 7 UploadPlugin 同款），自建
+/// MethodChannel `photolive/permissions`（MainActivity 内 PermissionPlugin
+/// 约 60 行 Kotlin，SDK<33 直接返回 granted）。后续再增权限需求时评估
+/// 插件化。
+///
+/// 进程内单次语义：首次入队动作（连拍/相册选择）时请求一次，之后不再
+/// 打扰；拒绝或通道失败（iOS/桌面无此通道）一律静默。
+library;
+
+import 'dart:io';
+
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+/// 通知权限门（注入 [channel]/[isAndroid] 供测试）。
+class NotificationPermission {
+  NotificationPermission({
+    MethodChannel? channel,
+    bool? isAndroid,
+  })  : _channel = channel ?? const MethodChannel(kChannelName),
+        _isAndroid = isAndroid ?? (!kIsWeb && Platform.isAndroid);
+
+  /// 平台通道名（与 Kotlin `PermissionPlugin.CHANNEL` 一致）。
+  static const String kChannelName = 'photolive/permissions';
+
+  final MethodChannel _channel;
+  final bool _isAndroid;
+  bool _requested = false;
+
+  /// 确保已请求一次（首次入队动作调用；幂等）。
+  ///
+  /// 非 Android 平台直接跳过（iOS 后台传输不依赖通知权限）；通道调用
+  /// 失败/拒绝静默吞掉——上传链路不因通知权限降级而中断。
+  Future<void> ensureRequested() async {
+    if (_requested) return;
+    _requested = true;
+    if (!_isAndroid) return;
+    try {
+      await _channel.invokeMethod<String>('requestPostNotifications');
+    } on Object {
+      // 通道缺失（iOS/桌面）或请求异常：静默降级。
+    }
+  }
+}
+
+/// 生产 Provider（队列/连拍页经 ref.read 一次性调用）。
+final notificationPermissionProvider =
+    Provider<NotificationPermission>((ref) => NotificationPermission());
diff --git a/apps/mobile/lib/features/uploads/engine_scope.dart b/apps/mobile/lib/features/uploads/engine_scope.dart
new file mode 100644
index 0000000..cf23736
--- /dev/null
+++ b/apps/mobile/lib/features/uploads/engine_scope.dart
@@ -0,0 +1,67 @@
+/// 引擎生命周期绑定（P3 计划 Task 6 关注点 1，Task 9 接线）。
+///
+/// 登录会话账号（SessionStore.account）→ [UploadEngine.start] 的 scope：
+/// - 账号在场（App 启动恢复会话 / 登录成功）→ start(accountId)——待传
+///   队列尽快恢复出队（A05）；
+/// - 账号离场（登出 / 401 驱逐）→ stop()——**任务行保留在库内**，账号
+///   切换安全由 TaskStore 的 accountId 硬隔离守护保障；
+/// - 会话变更通知点：登录页成功、设置页登出、App 壳 401 回调，均调
+///   [SessionAccountNotifier.refresh]。
+///
+/// [uploadEngineScopeProvider] 由 App 壳（PhotoLiveApp.build）watch 保持
+/// 常驻——离开登录态即 stop，绝不遗留旧账号的周期出队。
+library;
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../../core/api_client.dart';
+import 'providers.dart';
+import 'upload_engine.dart';
+
+/// 会话账号 Notifier：读 SessionStore；登录/登出/401 后 refresh()。
+class SessionAccountNotifier extends AsyncNotifier<String?> {
+  @override
+  Future<String?> build() async {
+    final session = await ref.watch(sessionStoreProvider).read();
+    return _normalize(session?.account);
+  }
+
+  /// 重读会话（登录成功/登出/401 驱逐后调用）。
+  Future<void> refresh() async {
+    final store = ref.read(sessionStoreProvider);
+    state = const AsyncLoading<String?>();
+    state = await AsyncValue.guard(() async {
+      final session = await store.read();
+      return _normalize(session?.account);
+    });
+  }
+
+  /// 空串归一为 null（未登录语义；引擎 scope 判空依据）。
+  static String? _normalize(String? account) =>
+      (account == null || account.isEmpty) ? null : account;
+}
+
+/// 会话账号 Provider（引擎 scope 与队列/连拍 UI 的 accountId 来源）。
+final sessionAccountProvider =
+    AsyncNotifierProvider<SessionAccountNotifier, String?>(
+  SessionAccountNotifier.new,
+);
+
+/// 引擎生命周期绑定：账号在场 → start；离场 → stop（任务保留库内）。
+///
+/// 返回当前 scope 账号（null=引擎停止）；仅被 App 壳 watch 时生效
+/// （Provider 惰性求值）。
+final uploadEngineScopeProvider = Provider<String?>((ref) {
+  final account = ref.watch(sessionAccountProvider).value;
+  final engine = ref.watch(uploadEngineProvider);
+  if (account != null) {
+    engine.start(account);
+  } else {
+    engine.stop();
+  }
+  ref.onDispose(engine.stop);
+  return account;
+});
+
+/// 供文档引用的类型锚点（[UploadEngine] 生命周期语义见 upload_engine.dart）。
+typedef EngineLifecycleDoc = UploadEngine;
diff --git a/apps/mobile/lib/features/uploads/enqueue.dart b/apps/mobile/lib/features/uploads/enqueue.dart
new file mode 100644
index 0000000..1c98290
--- /dev/null
+++ b/apps/mobile/lib/features/uploads/enqueue.dart
@@ -0,0 +1,64 @@
+/// 选图注入点 + 批量入队动作（P3 计划 Task 9）。
+///
+/// image_picker 的平台调用经 Provider 注入（[singleImagePickerProvider]/
+/// [multiImagePickerProvider]），widget 测试 override 为替身——不经平台
+/// 通道即可驱动入队流；[enqueueForUpload] 为连拍页与相册详情 FAB 的共用
+/// 入队路径：首次动作触发 POST_NOTIFICATIONS 请求（静默降级）+ 逐张经
+/// 准备器入队（准备器内部串行复制，防连拍 IO 风暴）。
+library;
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:image_picker/image_picker.dart';
+
+import '../../core/notification_permission.dart';
+import 'providers.dart';
+import 'task_state.dart';
+
+/// 单图选择（准备失败重试的重新选图路径）；返回源文件路径或 null（取消）。
+typedef SingleImagePicker = Future<String?> Function();
+
+/// 多图选择（相册多选入队）；返回源文件路径列表（空=取消）。
+typedef MultiImagePicker = Future<List<String>> Function();
+
+/// 单图选择 Provider（生产=image_picker；测试 override）。
+final singleImagePickerProvider = Provider<SingleImagePicker>(
+  (ref) => () async {
+    final file = await ImagePicker().pickImage(source: ImageSource.gallery);
+    return file?.path;
+  },
+);
+
+/// 多图选择 Provider（生产=image_picker；测试 override）。
+final multiImagePickerProvider = Provider<MultiImagePicker>(
+  (ref) => () async {
+    final files = await ImagePicker().pickMultiImage();
+    return files.map((file) => file.path).toList();
+  },
+);
+
+/// 批量入队：通知权限单次请求 + 逐张准备入队。
+///
+/// 返回成功入队（state=queued）的张数；准备失败的任务已落库为
+/// preparationFailed（连拍页失败徽章/队列页可见，不在此抛出）。
+Future<int> enqueueForUpload(
+  WidgetRef ref, {
+  required String accountId,
+  required String albumId,
+  String? categoryId,
+  required List<String> sourcePaths,
+}) async {
+  // 首次入队动作触发（幂等；拒绝/非 Android 静默降级，见实现注释）。
+  await ref.read(notificationPermissionProvider).ensureRequested();
+  final preparer = ref.read(uploadPreparerProvider);
+  var enqueued = 0;
+  for (final path in sourcePaths) {
+    final task = await preparer.prepare(
+      accountId: accountId,
+      albumId: albumId,
+      categoryId: categoryId,
+      sourcePath: path,
+    );
+    if (task.state == UploadTaskState.queued) enqueued++;
+  }
+  return enqueued;
+}
diff --git a/apps/mobile/lib/features/uploads/providers.dart b/apps/mobile/lib/features/uploads/providers.dart
index 6630745..f561de6 100644
--- a/apps/mobile/lib/features/uploads/providers.dart
+++ b/apps/mobile/lib/features/uploads/providers.dart
@@ -2,10 +2,12 @@
 ///
 /// 生产装配：TaskStore.app()（documents/upload_tasks.sqlite）+ ApiClient
 /// （Bearer 自动注入）+ DeviceId（shared_preferences）。引擎生命周期
-/// （start(accountId)/stop，随登录态切换）由 App 壳/队列 UI 驱动——
-/// Task 9 队列 UI 落地时接线；本文件保证依赖图就绪。
+/// （start(accountId)/stop，随登录态切换）在 engine_scope.dart 绑定
+/// （Task 9 接线）。
 library;
 
+import 'dart:async';
+
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../../core/api_client.dart';
@@ -21,13 +23,55 @@ final taskStoreProvider = Provider<TaskStore>((ref) {
   return store;
 });
 
+/// 单任务传输进度事件（队列 UI 行级进度条消费）。
+class UploadTaskProgress {
+  const UploadTaskProgress({
+    required this.taskId,
+    required this.sent,
+    required this.total,
+  });
+
+  final String taskId;
+  final int sent;
+  final int total;
+
+  /// 0~1 进度分数；total 未知（0）返回 null（UI 转不确定态进度条）。
+  double? get fraction =>
+      total > 0 ? (sent / total).clamp(0.0, 1.0).toDouble() : null;
+}
+
+/// 进度事件总线：引擎 onProgress 回调 → 广播流（行级 StreamBuilder 按
+/// taskId 过滤消费，避免整表重建风暴）。
+class UploadProgressHub {
+  final StreamController<UploadTaskProgress> _controller =
+      StreamController<UploadTaskProgress>.broadcast();
+
+  /// 进度事件流（广播；行级按 taskId 过滤）。
+  Stream<UploadTaskProgress> get stream => _controller.stream;
+
+  /// 引擎回调挂接点（uploadEngineProvider 内接线）。
+  void emit(String taskId, int sent, int total) =>
+      _controller.add(UploadTaskProgress(taskId: taskId, sent: sent, total: total));
+
+  void dispose() => _controller.close();
+}
+
+/// 进度总线 Provider。
+final uploadProgressHubProvider = Provider<UploadProgressHub>((ref) {
+  final hub = UploadProgressHub();
+  ref.onDispose(hub.dispose);
+  return hub;
+});
+
 /// 传输引擎（裸 Dio 直传 presign；并行/保留期配置见 upload_engine.dart
-/// 的 dart-define 常量）。
+/// 的 dart-define 常量；进度经 [UploadProgressHub] 广播）。
 final uploadEngineProvider = Provider<UploadEngine>((ref) {
+  final hub = ref.watch(uploadProgressHubProvider);
   final engine = UploadEngine(
     ref.watch(taskStoreProvider),
     ref.watch(apiClientProvider),
     ref.watch(deviceIdProvider),
+    onProgress: (taskId, sent, total) => hub.emit(taskId, sent, total),
   );
   ref.onDispose(engine.dispose);
   return engine;
diff --git a/apps/mobile/lib/features/uploads/queue_controller.dart b/apps/mobile/lib/features/uploads/queue_controller.dart
new file mode 100644
index 0000000..7129aac
--- /dev/null
+++ b/apps/mobile/lib/features/uploads/queue_controller.dart
@@ -0,0 +1,251 @@
+/// 队列 UI 状态层（P3 计划 Task 9）。
+///
+/// - [QueueFilter]：需求 4.3 三维筛选（相册 × 状态 × 时间）的**纯逻辑**
+///   （单测直接覆盖；与 [TaskStore.listByAccount] 的参数化查询语义一致：
+///   状态分组 → states 集合、时间快捷 → since 下限）；
+/// - [QueueFilterNotifier]：筛选状态（队列页 filter bar 消费）；
+/// - [QueueTasksNotifier]：筛选后的任务列表——**实时刷新 = TaskStore 写
+///   通知（drift tableUpdates）+ 200ms 防抖重查**（连拍入队/引擎迁移风暴
+///   下不逐条重建 UI）；
+/// - [TaskCountsNotifier]：账号内各状态计数（连拍页徽章 + 批量重试条，
+///   同一防抖策略）。
+library;
+
+import 'dart:async';
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import 'engine_scope.dart';
+import 'providers.dart';
+import 'task_state.dart';
+import 'task_store.dart';
+
+/// 状态筛选分组（chip → 状态集合；「全部」= 不过滤）。
+enum QueueStateFilter {
+  all,
+  preparing,
+  queued,
+  uploading,
+  waitingNetwork,
+  failed,
+  completed;
+
+  /// 分组对应的状态集合（空 = 不过滤）。
+  Set<UploadTaskState> get states => switch (this) {
+        QueueStateFilter.all => const <UploadTaskState>{},
+        QueueStateFilter.preparing => const <UploadTaskState>{
+            UploadTaskState.preparing,
+          },
+        QueueStateFilter.queued => const <UploadTaskState>{
+            UploadTaskState.queued,
+          },
+        QueueStateFilter.uploading => const <UploadTaskState>{
+            UploadTaskState.uploading,
+            UploadTaskState.uploadedConfirming,
+          },
+        QueueStateFilter.waitingNetwork => const <UploadTaskState>{
+            UploadTaskState.waitingNetwork,
+          },
+        QueueStateFilter.failed => const <UploadTaskState>{
+            UploadTaskState.preparationFailed,
+            UploadTaskState.retryableFailed,
+          },
+        QueueStateFilter.completed => const <UploadTaskState>{
+            UploadTaskState.completed,
+          },
+      };
+}
+
+/// 时间筛选快捷（今天/近7天/近30天/全部）。
+enum QueueTimeFilter {
+  all,
+  today,
+  last7Days,
+  last30Days;
+
+  /// 创建时间下限（null = 不过滤；本地时刻，matches 内与 UTC 落库值
+  /// 比较前归一）。
+  DateTime? since(DateTime now) => switch (this) {
+        QueueTimeFilter.all => null,
+        QueueTimeFilter.today => DateTime(now.year, now.month, now.day),
+        QueueTimeFilter.last7Days =>
+          now.subtract(const Duration(days: 7)),
+        QueueTimeFilter.last30Days =>
+          now.subtract(const Duration(days: 30)),
+      };
+}
+
+/// 三维筛选条件（不可变值对象；纯匹配逻辑单测覆盖）。
+class QueueFilter {
+  const QueueFilter({
+    this.albumId,
+    this.state = QueueStateFilter.all,
+    this.time = QueueTimeFilter.all,
+  });
+
+  /// 相册过滤（null = 全部相册）。
+  final String? albumId;
+
+  /// 状态分组过滤。
+  final QueueStateFilter state;
+
+  /// 时间快捷过滤。
+  final QueueTimeFilter time;
+
+  /// 纯匹配（与 TaskStore.listByAccount(albumId/states/since) 查询语义
+  /// 一致；createdAt 为 UTC 落库值，比较前归一时区）。
+  bool matches(UploadTask task, {required DateTime now}) {
+    if (albumId != null && task.albumId != albumId) return false;
+    final states = state.states;
+    if (states.isNotEmpty && !states.contains(task.state)) return false;
+    final cutoff = time.since(now);
+    if (cutoff != null && task.createdAt.isBefore(cutoff.toUtc())) return false;
+    return true;
+  }
+
+  QueueFilter copyWith({
+    String? albumId,
+    bool clearAlbum = false,
+    QueueStateFilter? state,
+    QueueTimeFilter? time,
+  }) =>
+      QueueFilter(
+        albumId: clearAlbum ? null : (albumId ?? this.albumId),
+        state: state ?? this.state,
+        time: time ?? this.time,
+      );
+}
+
+/// 筛选状态 Notifier。
+class QueueFilterNotifier extends Notifier<QueueFilter> {
+  @override
+  QueueFilter build() => const QueueFilter();
+
+  void setAlbum(String? albumId) =>
+      state = albumId == null ? state.copyWith(clearAlbum: true) : state.copyWith(albumId: albumId);
+
+  void setStateGroup(QueueStateFilter group) => state = state.copyWith(state: group);
+
+  void setTime(QueueTimeFilter time) => state = state.copyWith(time: time);
+}
+
+/// 筛选状态 Provider。
+final queueFilterProvider =
+    NotifierProvider<QueueFilterNotifier, QueueFilter>(QueueFilterNotifier.new);
+
+/// 防抖重查间隔（连拍/引擎迁移写风暴下限流）。
+const Duration kQueueRefreshDebounce = Duration(milliseconds: 200);
+
+/// 队列任务列表：筛选参数化查询 + 写通知防抖刷新。
+class QueueTasksNotifier extends AsyncNotifier<List<UploadTask>> {
+  StreamSubscription<void>? _changesSub;
+  Timer? _debounce;
+
+  @override
+  Future<List<UploadTask>> build() async {
+    final filter = ref.watch(queueFilterProvider);
+    final account = await ref.watch(sessionAccountProvider.future);
+    final store = ref.watch(taskStoreProvider);
+    _changesSub?.cancel();
+    _debounce?.cancel();
+    _changesSub = store.changes.listen((_) => _scheduleReload());
+    ref.onDispose(_dispose);
+    if (account == null) return const <UploadTask>[];
+    return _query(store, account, filter);
+  }
+
+  static Future<List<UploadTask>> _query(
+    TaskStore store,
+    String account,
+    QueueFilter filter,
+  ) =>
+      store.listByAccount(
+        account,
+        albumId: filter.albumId,
+        states: filter.state.states.isEmpty ? null : filter.state.states,
+        since: filter.time.since(DateTime.now()),
+      );
+
+  /// 写通知 → 200ms 防抖后重查（同一账号/筛选的最新快照）。
+  void _scheduleReload() {
+    _debounce?.cancel();
+    _debounce = Timer(kQueueRefreshDebounce, () {
+      final account = ref.read(sessionAccountProvider).value;
+      if (account == null) return;
+      _query(ref.read(taskStoreProvider), account, ref.read(queueFilterProvider))
+          .then((tasks) => state = AsyncData<List<UploadTask>>(tasks));
+    });
+  }
+
+  void _dispose() {
+    _changesSub?.cancel();
+    _changesSub = null;
+    _debounce?.cancel();
+    _debounce = null;
+  }
+}
+
+/// 队列任务列表 Provider。
+final queueTasksProvider =
+    AsyncNotifierProvider<QueueTasksNotifier, List<UploadTask>>(
+  QueueTasksNotifier.new,
+);
+
+/// 账号内各状态计数（连拍页徽章/批量重试条；写通知防抖刷新）。
+class TaskCountsNotifier extends Notifier<Map<UploadTaskState, int>> {
+  StreamSubscription<void>? _changesSub;
+  Timer? _debounce;
+
+  @override
+  Map<UploadTaskState, int> build() {
+    final store = ref.watch(taskStoreProvider);
+    // 会话变化（登录/登出）也触发重建（登出清零）。
+    ref.watch(sessionAccountProvider);
+    _changesSub?.cancel();
+    _debounce?.cancel();
+    _changesSub = store.changes.listen((_) => _scheduleReload());
+    ref.onDispose(_dispose);
+    Future<void>.microtask(() => _reload());
+    return <UploadTaskState, int>{
+      for (final state in UploadTaskState.values) state: 0,
+    };
+  }
+
+  Future<void> _reload() async {
+    final account = ref.read(sessionAccountProvider).value;
+    if (account == null) return;
+    final counts = await ref.read(taskStoreProvider).countsByState(account);
+    if (ref.mounted) state = counts;
+  }
+
+  void _scheduleReload() {
+    _debounce?.cancel();
+    _debounce = Timer(kQueueRefreshDebounce, _reload);
+  }
+
+  void _dispose() {
+    _changesSub?.cancel();
+    _changesSub = null;
+    _debounce?.cancel();
+    _debounce = null;
+  }
+}
+
+/// 各状态计数 Provider（键覆盖全部状态，无任务计 0）。
+final taskCountsProvider =
+    NotifierProvider<TaskCountsNotifier, Map<UploadTaskState, int>>(
+  TaskCountsNotifier.new,
+);
+
+/// 未完成（待传）计数：准备中/待传/上传中/确认中/等待网络之和。
+int pendingCountOf(Map<UploadTaskState, int> counts) =>
+    counts[UploadTaskState.preparing]! +
+    counts[UploadTaskState.queued]! +
+    counts[UploadTaskState.uploading]! +
+    counts[UploadTaskState.uploadedConfirming]! +
+    counts[UploadTaskState.waitingNetwork]!;
+
+/// 失败计数：准备失败 + 上传失败。
+int failedCountOf(Map<UploadTaskState, int> counts) =>
+    counts[UploadTaskState.preparationFailed]! +
+    counts[UploadTaskState.retryableFailed]!;
diff --git a/apps/mobile/lib/features/uploads/queue_l10n.dart b/apps/mobile/lib/features/uploads/queue_l10n.dart
new file mode 100644
index 0000000..03d36db
--- /dev/null
+++ b/apps/mobile/lib/features/uploads/queue_l10n.dart
@@ -0,0 +1,75 @@
+/// 任务状态/上传域错误码 → 本地化文案（P3 计划 Task 9）。
+///
+/// 队列/连拍页专用扩展：契约错误码复用 core/error_l10n 的映射，此处
+/// 补齐上传域客户端伪码（准备阶段 [PrepErrorCodes]、引擎源缺失伪码）
+/// 与队列高频契约码（ALBUM_UPLOAD_DISABLED 等）。
+library;
+
+import '../../core/error_codes.dart';
+import '../../core/error_l10n.dart';
+import '../../l10n/app_localizations.dart';
+import '../albums/models.dart';
+import 'preparer.dart';
+import 'task_state.dart';
+import 'upload_engine.dart';
+
+extension AppLocalizationsUploadX on AppLocalizations {
+  /// 任务状态标签（chip/文案）。
+  String labelForTaskState(UploadTaskState state) => switch (state) {
+        UploadTaskState.preparing => taskStatePreparing,
+        UploadTaskState.preparationFailed => taskStatePreparationFailed,
+        UploadTaskState.queued => taskStateQueued,
+        UploadTaskState.uploading => taskStateUploading,
+        UploadTaskState.uploadedConfirming => taskStateUploadedConfirming,
+        UploadTaskState.completed => taskStateCompleted,
+        UploadTaskState.waitingNetwork => taskStateWaitingNetwork,
+        UploadTaskState.retryableFailed => taskStateRetryableFailed,
+        UploadTaskState.cancelled => taskStateCancelled,
+      };
+
+  /// 任务 lastError → 展示文案（上传域伪码 + 契约码；未映射回退
+  /// error_l10n 的通用解析）。
+  String messageForTaskError(String code) {
+    switch (code) {
+      case PrepErrorCodes.sourceUnreadable:
+        return errorPrepSourceUnreadable;
+      case PrepErrorCodes.unsupportedType:
+        return errorPrepUnsupportedType;
+      case PrepErrorCodes.tooLarge:
+        return errorPrepTooLarge;
+      case PrepErrorCodes.copyFailed:
+        return errorPrepCopyFailed;
+      case UploadEngine.sourceMissingCode:
+        return errorUploadSourceMissing;
+      case ErrorCodes.albumUploadDisabled:
+        return errorAlbumUploadDisabled;
+      case ErrorCodes.uploadSessionConflict:
+        return errorUploadSessionConflict;
+      case ErrorCodes.uploadVerifyFailed:
+        return errorUploadVerifyFailed;
+      default:
+        return messageForErrorCode(code);
+    }
+  }
+}
+
+/// 相册展示标题解析：当前 locale → 相册默认语言 → 首条 → 相册 ID。
+///
+/// locale 匹配按语言前缀（App locale `zh`/`en` vs 契约 `zh-CN`/`en`）。
+String albumDisplayTitle(AlbumSummary album, String localeName) {
+  final lang = localeName.split('-').first.toLowerCase();
+  AlbumTranslation? match;
+  for (final t in album.translations) {
+    if (t.locale.toLowerCase() == localeName.toLowerCase() ||
+        t.locale.toLowerCase().split('-').first == lang) {
+      match = t;
+      break;
+    }
+  }
+  if (match != null) return match.title;
+  for (final t in album.translations) {
+    if (t.locale == album.defaultLocale) return t.title;
+  }
+  if (album.translations.isNotEmpty) return album.translations.first.title;
+  return album.id;
+}
diff --git a/apps/mobile/lib/features/uploads/task_store.dart b/apps/mobile/lib/features/uploads/task_store.dart
index d34c19b..afae72b 100644
--- a/apps/mobile/lib/features/uploads/task_store.dart
+++ b/apps/mobile/lib/features/uploads/task_store.dart
@@ -237,6 +237,11 @@ class TaskStore {
   /// 关闭底层数据库（App 退出/测试 tearDown）。
   Future<void> close() => _db.close();
 
+  /// 表写通知流（drift 对 insert/update/delete 自动发事件；队列 UI 的
+  /// 节流刷新挂接点——引擎/准备器每次落库都会触发）。
+  Stream<void> get changes =>
+      _db.tableUpdates().map<void>((Set<TableUpdate> _) {});
+
   /// 时间戳统一 UTC 落库（datetime 为 ISO-8601 文本存储：UTC 值以 `Z`
   /// 结尾、本地值带 `+hh:mm` 后缀，混存会让 SQL 文本比较错位一个时区
   /// 偏移——全部归一 UTC 后字典序即时间序）。
diff --git a/apps/mobile/lib/l10n/app_en.arb b/apps/mobile/lib/l10n/app_en.arb
index 589c403..7c95fb2 100644
--- a/apps/mobile/lib/l10n/app_en.arb
+++ b/apps/mobile/lib/l10n/app_en.arb
@@ -117,5 +117,60 @@
   "uploadStateConfirmed": "Confirmed",
   "uploadStateCancelled": "Cancelled",
   "uploadStateExpired": "Expired",
-  "thisDevice": "This device"
+  "thisDevice": "This device",
+  "queueAlbumFilterAll": "All albums",
+  "queueStateAll": "All",
+  "queueStatePreparing": "Preparing",
+  "queueStateQueued": "Queued",
+  "queueStateUploading": "Uploading",
+  "queueStateWaitingNetwork": "Waiting for network",
+  "queueStateFailed": "Failed",
+  "queueStateCompleted": "Done",
+  "queueTimeAll": "Any time",
+  "queueTimeToday": "Today",
+  "queueTimeLast7Days": "Last 7 days",
+  "queueTimeLast30Days": "Last 30 days",
+  "queueEmpty": "No upload tasks",
+  "queueRetryAllFailed": "Retry all failed",
+  "queueAttemptCount": "{count} attempt(s)",
+  "@queueAttemptCount": { "placeholders": { "count": { "type": "int" } } },
+  "taskStatePreparing": "Preparing",
+  "taskStatePreparationFailed": "Preparation failed",
+  "taskStateQueued": "Queued",
+  "taskStateUploading": "Uploading",
+  "taskStateUploadedConfirming": "Confirming",
+  "taskStateCompleted": "Completed",
+  "taskStateWaitingNetwork": "Waiting for network",
+  "taskStateRetryableFailed": "Upload failed",
+  "taskStateCancelled": "Cancelled",
+  "errorPrepSourceUnreadable": "Could not read the selected photo. Please reselect",
+  "errorPrepUnsupportedType": "Only JPG, PNG and HEIC images are supported",
+  "errorPrepTooLarge": "Photo exceeds the 50MB limit",
+  "errorPrepCopyFailed": "Failed to copy the photo. Please retry",
+  "errorUploadSourceMissing": "Source file is missing. Please reselect",
+  "errorAlbumUploadDisabled": "Album uploads are disabled",
+  "errorUploadSessionConflict": "Upload session conflict. Please retry",
+  "errorUploadVerifyFailed": "Upload verification failed. Will retry",
+  "captureTitle": "Continuous capture",
+  "captureCategoryDefault": "Default category",
+  "captureSwitchHint": "Switching only affects photos captured afterwards",
+  "capturePendingBadge": "Pending {count}",
+  "@capturePendingBadge": { "placeholders": { "count": { "type": "int" } } },
+  "captureFailedBadge": "Failed {count}",
+  "@captureFailedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "capturePickFromGallery": "Pick from gallery",
+  "captureShutter": "Capture",
+  "captureExitTitle": "Leave shooting?",
+  "captureExitBody": "{count} photo(s) are still uploading. Tasks will continue in the background after you leave.",
+  "@captureExitBody": { "placeholders": { "count": { "type": "int" } } },
+  "captureKeepShooting": "Keep shooting",
+  "captureExitConfirm": "Leave",
+  "cameraPermissionDenied": "Camera unavailable. Allow camera access in system settings",
+  "cameraInitFailed": "Camera failed to initialize",
+  "uploadActionCapture": "Capture and upload",
+  "uploadActionPick": "Pick from gallery",
+  "uploadAction": "Upload",
+  "uploadEnqueuedCount": "Added {count} photo(s) to the upload queue",
+  "@uploadEnqueuedCount": { "placeholders": { "count": { "type": "int" } } },
+  "uploadPickNone": "No photos selected"
 }
diff --git a/apps/mobile/lib/l10n/app_localizations.dart b/apps/mobile/lib/l10n/app_localizations.dart
index f2e77fc..c8dcf41 100644
--- a/apps/mobile/lib/l10n/app_localizations.dart
+++ b/apps/mobile/lib/l10n/app_localizations.dart
@@ -805,6 +805,306 @@ abstract class AppLocalizations {
   /// In zh, this message translates to:
   /// **'本设备'**
   String get thisDevice;
+
+  /// No description provided for @queueAlbumFilterAll.
+  ///
+  /// In zh, this message translates to:
+  /// **'全部相册'**
+  String get queueAlbumFilterAll;
+
+  /// No description provided for @queueStateAll.
+  ///
+  /// In zh, this message translates to:
+  /// **'全部'**
+  String get queueStateAll;
+
+  /// No description provided for @queueStatePreparing.
+  ///
+  /// In zh, this message translates to:
+  /// **'准备中'**
+  String get queueStatePreparing;
+
+  /// No description provided for @queueStateQueued.
+  ///
+  /// In zh, this message translates to:
+  /// **'待传'**
+  String get queueStateQueued;
+
+  /// No description provided for @queueStateUploading.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传中'**
+  String get queueStateUploading;
+
+  /// No description provided for @queueStateWaitingNetwork.
+  ///
+  /// In zh, this message translates to:
+  /// **'等待网络'**
+  String get queueStateWaitingNetwork;
+
+  /// No description provided for @queueStateFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'失败'**
+  String get queueStateFailed;
+
+  /// No description provided for @queueStateCompleted.
+  ///
+  /// In zh, this message translates to:
+  /// **'已完成'**
+  String get queueStateCompleted;
+
+  /// No description provided for @queueTimeAll.
+  ///
+  /// In zh, this message translates to:
+  /// **'全部时间'**
+  String get queueTimeAll;
+
+  /// No description provided for @queueTimeToday.
+  ///
+  /// In zh, this message translates to:
+  /// **'今天'**
+  String get queueTimeToday;
+
+  /// No description provided for @queueTimeLast7Days.
+  ///
+  /// In zh, this message translates to:
+  /// **'近7天'**
+  String get queueTimeLast7Days;
+
+  /// No description provided for @queueTimeLast30Days.
+  ///
+  /// In zh, this message translates to:
+  /// **'近30天'**
+  String get queueTimeLast30Days;
+
+  /// No description provided for @queueEmpty.
+  ///
+  /// In zh, this message translates to:
+  /// **'暂无上传任务'**
+  String get queueEmpty;
+
+  /// No description provided for @queueRetryAllFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'一键重试全部失败'**
+  String get queueRetryAllFailed;
+
+  /// No description provided for @queueAttemptCount.
+  ///
+  /// In zh, this message translates to:
+  /// **'已尝试 {count} 次'**
+  String queueAttemptCount(int count);
+
+  /// No description provided for @taskStatePreparing.
+  ///
+  /// In zh, this message translates to:
+  /// **'准备中'**
+  String get taskStatePreparing;
+
+  /// No description provided for @taskStatePreparationFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'准备失败'**
+  String get taskStatePreparationFailed;
+
+  /// No description provided for @taskStateQueued.
+  ///
+  /// In zh, this message translates to:
+  /// **'待上传'**
+  String get taskStateQueued;
+
+  /// No description provided for @taskStateUploading.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传中'**
+  String get taskStateUploading;
+
+  /// No description provided for @taskStateUploadedConfirming.
+  ///
+  /// In zh, this message translates to:
+  /// **'确认中'**
+  String get taskStateUploadedConfirming;
+
+  /// No description provided for @taskStateCompleted.
+  ///
+  /// In zh, this message translates to:
+  /// **'已完成'**
+  String get taskStateCompleted;
+
+  /// No description provided for @taskStateWaitingNetwork.
+  ///
+  /// In zh, this message translates to:
+  /// **'等待网络'**
+  String get taskStateWaitingNetwork;
+
+  /// No description provided for @taskStateRetryableFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传失败'**
+  String get taskStateRetryableFailed;
+
+  /// No description provided for @taskStateCancelled.
+  ///
+  /// In zh, this message translates to:
+  /// **'已取消'**
+  String get taskStateCancelled;
+
+  /// No description provided for @errorPrepSourceUnreadable.
+  ///
+  /// In zh, this message translates to:
+  /// **'无法读取所选图片，请重新选择'**
+  String get errorPrepSourceUnreadable;
+
+  /// No description provided for @errorPrepUnsupportedType.
+  ///
+  /// In zh, this message translates to:
+  /// **'仅支持 JPG/PNG/HEIC 图片'**
+  String get errorPrepUnsupportedType;
+
+  /// No description provided for @errorPrepTooLarge.
+  ///
+  /// In zh, this message translates to:
+  /// **'图片超过 50MB 上限'**
+  String get errorPrepTooLarge;
+
+  /// No description provided for @errorPrepCopyFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'保存图片副本失败，请重试'**
+  String get errorPrepCopyFailed;
+
+  /// No description provided for @errorUploadSourceMissing.
+  ///
+  /// In zh, this message translates to:
+  /// **'源文件已缺失，请重新选择'**
+  String get errorUploadSourceMissing;
+
+  /// No description provided for @errorAlbumUploadDisabled.
+  ///
+  /// In zh, this message translates to:
+  /// **'相册已关闭上传'**
+  String get errorAlbumUploadDisabled;
+
+  /// No description provided for @errorUploadSessionConflict.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传会话冲突，请重试'**
+  String get errorUploadSessionConflict;
+
+  /// No description provided for @errorUploadVerifyFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传核验失败，将自动重试'**
+  String get errorUploadVerifyFailed;
+
+  /// No description provided for @captureTitle.
+  ///
+  /// In zh, this message translates to:
+  /// **'连拍上传'**
+  String get captureTitle;
+
+  /// No description provided for @captureCategoryDefault.
+  ///
+  /// In zh, this message translates to:
+  /// **'默认分类'**
+  String get captureCategoryDefault;
+
+  /// No description provided for @captureSwitchHint.
+  ///
+  /// In zh, this message translates to:
+  /// **'切换分类仅影响之后拍摄的照片'**
+  String get captureSwitchHint;
+
+  /// No description provided for @capturePendingBadge.
+  ///
+  /// In zh, this message translates to:
+  /// **'待传 {count}'**
+  String capturePendingBadge(int count);
+
+  /// No description provided for @captureFailedBadge.
+  ///
+  /// In zh, this message translates to:
+  /// **'失败 {count}'**
+  String captureFailedBadge(int count);
+
+  /// No description provided for @capturePickFromGallery.
+  ///
+  /// In zh, this message translates to:
+  /// **'从相册选择'**
+  String get capturePickFromGallery;
+
+  /// No description provided for @captureShutter.
+  ///
+  /// In zh, this message translates to:
+  /// **'拍摄'**
+  String get captureShutter;
+
+  /// No description provided for @captureExitTitle.
+  ///
+  /// In zh, this message translates to:
+  /// **'退出拍摄？'**
+  String get captureExitTitle;
+
+  /// No description provided for @captureExitBody.
+  ///
+  /// In zh, this message translates to:
+  /// **'还有 {count} 张照片未上传，退出后任务将在后台继续。'**
+  String captureExitBody(int count);
+
+  /// No description provided for @captureKeepShooting.
+  ///
+  /// In zh, this message translates to:
+  /// **'继续拍摄'**
+  String get captureKeepShooting;
+
+  /// No description provided for @captureExitConfirm.
+  ///
+  /// In zh, this message translates to:
+  /// **'退出'**
+  String get captureExitConfirm;
+
+  /// No description provided for @cameraPermissionDenied.
+  ///
+  /// In zh, this message translates to:
+  /// **'无法访问相机，请在系统设置中允许相机权限'**
+  String get cameraPermissionDenied;
+
+  /// No description provided for @cameraInitFailed.
+  ///
+  /// In zh, this message translates to:
+  /// **'相机初始化失败'**
+  String get cameraInitFailed;
+
+  /// No description provided for @uploadActionCapture.
+  ///
+  /// In zh, this message translates to:
+  /// **'拍照上传'**
+  String get uploadActionCapture;
+
+  /// No description provided for @uploadActionPick.
+  ///
+  /// In zh, this message translates to:
+  /// **'从相册选择'**
+  String get uploadActionPick;
+
+  /// No description provided for @uploadAction.
+  ///
+  /// In zh, this message translates to:
+  /// **'上传'**
+  String get uploadAction;
+
+  /// No description provided for @uploadEnqueuedCount.
+  ///
+  /// In zh, this message translates to:
+  /// **'已加入 {count} 张上传队列'**
+  String uploadEnqueuedCount(int count);
+
+  /// No description provided for @uploadPickNone.
+  ///
+  /// In zh, this message translates to:
+  /// **'未选择照片'**
+  String get uploadPickNone;
 }
 
 class _AppLocalizationsDelegate
diff --git a/apps/mobile/lib/l10n/app_localizations_en.dart b/apps/mobile/lib/l10n/app_localizations_en.dart
index 49547c7..4b7d1db 100644
--- a/apps/mobile/lib/l10n/app_localizations_en.dart
+++ b/apps/mobile/lib/l10n/app_localizations_en.dart
@@ -370,4 +370,171 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get thisDevice => 'This device';
+
+  @override
+  String get queueAlbumFilterAll => 'All albums';
+
+  @override
+  String get queueStateAll => 'All';
+
+  @override
+  String get queueStatePreparing => 'Preparing';
+
+  @override
+  String get queueStateQueued => 'Queued';
+
+  @override
+  String get queueStateUploading => 'Uploading';
+
+  @override
+  String get queueStateWaitingNetwork => 'Waiting for network';
+
+  @override
+  String get queueStateFailed => 'Failed';
+
+  @override
+  String get queueStateCompleted => 'Done';
+
+  @override
+  String get queueTimeAll => 'Any time';
+
+  @override
+  String get queueTimeToday => 'Today';
+
+  @override
+  String get queueTimeLast7Days => 'Last 7 days';
+
+  @override
+  String get queueTimeLast30Days => 'Last 30 days';
+
+  @override
+  String get queueEmpty => 'No upload tasks';
+
+  @override
+  String get queueRetryAllFailed => 'Retry all failed';
+
+  @override
+  String queueAttemptCount(int count) {
+    return '$count attempt(s)';
+  }
+
+  @override
+  String get taskStatePreparing => 'Preparing';
+
+  @override
+  String get taskStatePreparationFailed => 'Preparation failed';
+
+  @override
+  String get taskStateQueued => 'Queued';
+
+  @override
+  String get taskStateUploading => 'Uploading';
+
+  @override
+  String get taskStateUploadedConfirming => 'Confirming';
+
+  @override
+  String get taskStateCompleted => 'Completed';
+
+  @override
+  String get taskStateWaitingNetwork => 'Waiting for network';
+
+  @override
+  String get taskStateRetryableFailed => 'Upload failed';
+
+  @override
+  String get taskStateCancelled => 'Cancelled';
+
+  @override
+  String get errorPrepSourceUnreadable =>
+      'Could not read the selected photo. Please reselect';
+
+  @override
+  String get errorPrepUnsupportedType =>
+      'Only JPG, PNG and HEIC images are supported';
+
+  @override
+  String get errorPrepTooLarge => 'Photo exceeds the 50MB limit';
+
+  @override
+  String get errorPrepCopyFailed => 'Failed to copy the photo. Please retry';
+
+  @override
+  String get errorUploadSourceMissing =>
+      'Source file is missing. Please reselect';
+
+  @override
+  String get errorAlbumUploadDisabled => 'Album uploads are disabled';
+
+  @override
+  String get errorUploadSessionConflict =>
+      'Upload session conflict. Please retry';
+
+  @override
+  String get errorUploadVerifyFailed =>
+      'Upload verification failed. Will retry';
+
+  @override
+  String get captureTitle => 'Continuous capture';
+
+  @override
+  String get captureCategoryDefault => 'Default category';
+
+  @override
+  String get captureSwitchHint =>
+      'Switching only affects photos captured afterwards';
+
+  @override
+  String capturePendingBadge(int count) {
+    return 'Pending $count';
+  }
+
+  @override
+  String captureFailedBadge(int count) {
+    return 'Failed $count';
+  }
+
+  @override
+  String get capturePickFromGallery => 'Pick from gallery';
+
+  @override
+  String get captureShutter => 'Capture';
+
+  @override
+  String get captureExitTitle => 'Leave shooting?';
+
+  @override
+  String captureExitBody(int count) {
+    return '$count photo(s) are still uploading. Tasks will continue in the background after you leave.';
+  }
+
+  @override
+  String get captureKeepShooting => 'Keep shooting';
+
+  @override
+  String get captureExitConfirm => 'Leave';
+
+  @override
+  String get cameraPermissionDenied =>
+      'Camera unavailable. Allow camera access in system settings';
+
+  @override
+  String get cameraInitFailed => 'Camera failed to initialize';
+
+  @override
+  String get uploadActionCapture => 'Capture and upload';
+
+  @override
+  String get uploadActionPick => 'Pick from gallery';
+
+  @override
+  String get uploadAction => 'Upload';
+
+  @override
+  String uploadEnqueuedCount(int count) {
+    return 'Added $count photo(s) to the upload queue';
+  }
+
+  @override
+  String get uploadPickNone => 'No photos selected';
 }
diff --git a/apps/mobile/lib/l10n/app_localizations_zh.dart b/apps/mobile/lib/l10n/app_localizations_zh.dart
index 0d7f378..435ea37 100644
--- a/apps/mobile/lib/l10n/app_localizations_zh.dart
+++ b/apps/mobile/lib/l10n/app_localizations_zh.dart
@@ -361,4 +361,164 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get thisDevice => '本设备';
+
+  @override
+  String get queueAlbumFilterAll => '全部相册';
+
+  @override
+  String get queueStateAll => '全部';
+
+  @override
+  String get queueStatePreparing => '准备中';
+
+  @override
+  String get queueStateQueued => '待传';
+
+  @override
+  String get queueStateUploading => '上传中';
+
+  @override
+  String get queueStateWaitingNetwork => '等待网络';
+
+  @override
+  String get queueStateFailed => '失败';
+
+  @override
+  String get queueStateCompleted => '已完成';
+
+  @override
+  String get queueTimeAll => '全部时间';
+
+  @override
+  String get queueTimeToday => '今天';
+
+  @override
+  String get queueTimeLast7Days => '近7天';
+
+  @override
+  String get queueTimeLast30Days => '近30天';
+
+  @override
+  String get queueEmpty => '暂无上传任务';
+
+  @override
+  String get queueRetryAllFailed => '一键重试全部失败';
+
+  @override
+  String queueAttemptCount(int count) {
+    return '已尝试 $count 次';
+  }
+
+  @override
+  String get taskStatePreparing => '准备中';
+
+  @override
+  String get taskStatePreparationFailed => '准备失败';
+
+  @override
+  String get taskStateQueued => '待上传';
+
+  @override
+  String get taskStateUploading => '上传中';
+
+  @override
+  String get taskStateUploadedConfirming => '确认中';
+
+  @override
+  String get taskStateCompleted => '已完成';
+
+  @override
+  String get taskStateWaitingNetwork => '等待网络';
+
+  @override
+  String get taskStateRetryableFailed => '上传失败';
+
+  @override
+  String get taskStateCancelled => '已取消';
+
+  @override
+  String get errorPrepSourceUnreadable => '无法读取所选图片，请重新选择';
+
+  @override
+  String get errorPrepUnsupportedType => '仅支持 JPG/PNG/HEIC 图片';
+
+  @override
+  String get errorPrepTooLarge => '图片超过 50MB 上限';
+
+  @override
+  String get errorPrepCopyFailed => '保存图片副本失败，请重试';
+
+  @override
+  String get errorUploadSourceMissing => '源文件已缺失，请重新选择';
+
+  @override
+  String get errorAlbumUploadDisabled => '相册已关闭上传';
+
+  @override
+  String get errorUploadSessionConflict => '上传会话冲突，请重试';
+
+  @override
+  String get errorUploadVerifyFailed => '上传核验失败，将自动重试';
+
+  @override
+  String get captureTitle => '连拍上传';
+
+  @override
+  String get captureCategoryDefault => '默认分类';
+
+  @override
+  String get captureSwitchHint => '切换分类仅影响之后拍摄的照片';
+
+  @override
+  String capturePendingBadge(int count) {
+    return '待传 $count';
+  }
+
+  @override
+  String captureFailedBadge(int count) {
+    return '失败 $count';
+  }
+
+  @override
+  String get capturePickFromGallery => '从相册选择';
+
+  @override
+  String get captureShutter => '拍摄';
+
+  @override
+  String get captureExitTitle => '退出拍摄？';
+
+  @override
+  String captureExitBody(int count) {
+    return '还有 $count 张照片未上传，退出后任务将在后台继续。';
+  }
+
+  @override
+  String get captureKeepShooting => '继续拍摄';
+
+  @override
+  String get captureExitConfirm => '退出';
+
+  @override
+  String get cameraPermissionDenied => '无法访问相机，请在系统设置中允许相机权限';
+
+  @override
+  String get cameraInitFailed => '相机初始化失败';
+
+  @override
+  String get uploadActionCapture => '拍照上传';
+
+  @override
+  String get uploadActionPick => '从相册选择';
+
+  @override
+  String get uploadAction => '上传';
+
+  @override
+  String uploadEnqueuedCount(int count) {
+    return '已加入 $count 张上传队列';
+  }
+
+  @override
+  String get uploadPickNone => '未选择照片';
 }
diff --git a/apps/mobile/lib/l10n/app_zh.arb b/apps/mobile/lib/l10n/app_zh.arb
index 804e83a..61df742 100644
--- a/apps/mobile/lib/l10n/app_zh.arb
+++ b/apps/mobile/lib/l10n/app_zh.arb
@@ -117,5 +117,60 @@
   "uploadStateConfirmed": "已确认",
   "uploadStateCancelled": "已取消",
   "uploadStateExpired": "已过期",
-  "thisDevice": "本设备"
+  "thisDevice": "本设备",
+  "queueAlbumFilterAll": "全部相册",
+  "queueStateAll": "全部",
+  "queueStatePreparing": "准备中",
+  "queueStateQueued": "待传",
+  "queueStateUploading": "上传中",
+  "queueStateWaitingNetwork": "等待网络",
+  "queueStateFailed": "失败",
+  "queueStateCompleted": "已完成",
+  "queueTimeAll": "全部时间",
+  "queueTimeToday": "今天",
+  "queueTimeLast7Days": "近7天",
+  "queueTimeLast30Days": "近30天",
+  "queueEmpty": "暂无上传任务",
+  "queueRetryAllFailed": "一键重试全部失败",
+  "queueAttemptCount": "已尝试 {count} 次",
+  "@queueAttemptCount": { "placeholders": { "count": { "type": "int" } } },
+  "taskStatePreparing": "准备中",
+  "taskStatePreparationFailed": "准备失败",
+  "taskStateQueued": "待上传",
+  "taskStateUploading": "上传中",
+  "taskStateUploadedConfirming": "确认中",
+  "taskStateCompleted": "已完成",
+  "taskStateWaitingNetwork": "等待网络",
+  "taskStateRetryableFailed": "上传失败",
+  "taskStateCancelled": "已取消",
+  "errorPrepSourceUnreadable": "无法读取所选图片，请重新选择",
+  "errorPrepUnsupportedType": "仅支持 JPG/PNG/HEIC 图片",
+  "errorPrepTooLarge": "图片超过 50MB 上限",
+  "errorPrepCopyFailed": "保存图片副本失败，请重试",
+  "errorUploadSourceMissing": "源文件已缺失，请重新选择",
+  "errorAlbumUploadDisabled": "相册已关闭上传",
+  "errorUploadSessionConflict": "上传会话冲突，请重试",
+  "errorUploadVerifyFailed": "上传核验失败，将自动重试",
+  "captureTitle": "连拍上传",
+  "captureCategoryDefault": "默认分类",
+  "captureSwitchHint": "切换分类仅影响之后拍摄的照片",
+  "capturePendingBadge": "待传 {count}",
+  "@capturePendingBadge": { "placeholders": { "count": { "type": "int" } } },
+  "captureFailedBadge": "失败 {count}",
+  "@captureFailedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "capturePickFromGallery": "从相册选择",
+  "captureShutter": "拍摄",
+  "captureExitTitle": "退出拍摄？",
+  "captureExitBody": "还有 {count} 张照片未上传，退出后任务将在后台继续。",
+  "@captureExitBody": { "placeholders": { "count": { "type": "int" } } },
+  "captureKeepShooting": "继续拍摄",
+  "captureExitConfirm": "退出",
+  "cameraPermissionDenied": "无法访问相机，请在系统设置中允许相机权限",
+  "cameraInitFailed": "相机初始化失败",
+  "uploadActionCapture": "拍照上传",
+  "uploadActionPick": "从相册选择",
+  "uploadAction": "上传",
+  "uploadEnqueuedCount": "已加入 {count} 张上传队列",
+  "@uploadEnqueuedCount": { "placeholders": { "count": { "type": "int" } } },
+  "uploadPickNone": "未选择照片"
 }
diff --git a/apps/mobile/lib/pages/album_detail_page.dart b/apps/mobile/lib/pages/album_detail_page.dart
index 01a10df..e14b7d7 100644
--- a/apps/mobile/lib/pages/album_detail_page.dart
+++ b/apps/mobile/lib/pages/album_detail_page.dart
@@ -14,10 +14,12 @@ import '../core/error_l10n.dart';
 import '../features/albums/album_format.dart';
 import '../features/albums/models.dart';
 import '../features/albums/providers.dart';
+import '../features/uploads/enqueue.dart';
 import '../l10n/app_localizations.dart';
 import 'album_form_page.dart';
 import 'album_members_page.dart';
 import 'album_photos_page.dart';
+import 'capture_page.dart';
 import 'share_qr_dialog.dart';
 
 /// 相册详情（[albumId] 路由参数；进入后 GET /albums/{id}）。
@@ -127,6 +129,87 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     );
   }
 
+  // ── 上传入口（Task 9 FAB：拍照上传 / 从相册选择） ──────────────────────
+
+  /// 当前登录账号（TaskStore 隔离键；详情页处于登录壳内，null 视为异常）。
+  Future<String?> _currentAccountId() async {
+    final session = await ref.read(sessionStoreProvider).read();
+    return session?.account;
+  }
+
+  Future<void> _openUploadSheet() {
+    final l10n = AppLocalizations.of(context);
+    return showModalBottomSheet<void>(
+      context: context,
+      builder: (sheetContext) => SafeArea(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ListTile(
+              leading: const Icon(Icons.photo_camera_outlined),
+              title: Text(l10n.uploadActionCapture),
+              onTap: () {
+                Navigator.of(sheetContext).pop();
+                _openCapture();
+              },
+            ),
+            ListTile(
+              leading: const Icon(Icons.photo_library_outlined),
+              title: Text(l10n.uploadActionPick),
+              onTap: () {
+                Navigator.of(sheetContext).pop();
+                _pickFromGallery();
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 拍照上传：进入连拍页（目标相册 + 分类选定一次）。
+  Future<void> _openCapture() async {
+    final album = _album;
+    if (album == null) return;
+    final account = await _currentAccountId();
+    if (!mounted) return;
+    if (account == null) return;
+    await Navigator.of(context).push(
+      MaterialPageRoute<void>(
+        builder: (_) => CapturePage(
+          target: CaptureTarget(
+            accountId: account,
+            albumId: album.id,
+            albumTitle: _titleOf(album),
+            categories: album.categories,
+          ),
+        ),
+      ),
+    );
+  }
+
+  /// 从相册选择：多选 → 逐张入队（默认分类）→ 入队数提示。
+  Future<void> _pickFromGallery() async {
+    final album = _album;
+    if (album == null) return;
+    final l10n = AppLocalizations.of(context);
+    final account = await _currentAccountId();
+    if (account == null) return;
+    final paths = await ref.read(multiImagePickerProvider)();
+    if (paths.isEmpty || !mounted) return;
+    final messenger = ScaffoldMessenger.of(context);
+    final count = await enqueueForUpload(
+      ref,
+      accountId: account,
+      albumId: album.id,
+      sourcePaths: paths,
+    );
+    if (!mounted) return;
+    messenger.showSnackBar(
+      SnackBar(content: Text(l10n.uploadEnqueuedCount(count))),
+    );
+  }
+
   void _scrollToCategories() {
     final ctx = _categoriesKey.currentContext;
     if (ctx != null) {
@@ -192,6 +275,14 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     final title = album == null ? l10n.albumDetail : _titleOf(album);
     return Scaffold(
       appBar: AppBar(title: Text(title)),
+      // 上传入口（Task 9）：拍照上传（连拍页）/ 从相册选择（多选入队）。
+      floatingActionButton: album == null
+          ? null
+          : FloatingActionButton.extended(
+              onPressed: _openUploadSheet,
+              icon: const Icon(Icons.photo_camera_outlined),
+              label: Text(l10n.uploadAction),
+            ),
       body: _loading
           ? const Center(child: CircularProgressIndicator())
           : album == null
diff --git a/apps/mobile/lib/pages/capture_page.dart b/apps/mobile/lib/pages/capture_page.dart
new file mode 100644
index 0000000..2476667
--- /dev/null
+++ b/apps/mobile/lib/pages/capture_page.dart
@@ -0,0 +1,545 @@
+/// 连拍页（P3 计划 Task 9，R17 连拍入队 / O01 现场反馈）。
+///
+/// 进入时选定目标相册与分类（相册详情 FAB 传入）；快门每张立即经准备器
+/// 入队（preparing→queued，不逐张确认）；常驻信息层：相册名 + 分类（可
+/// 切换，**仅影响之后拍摄**——引擎只读任务行归属，切换不改既有任务）+
+/// 待传/失败徽章（TaskStore 写通知实时刷新）。相册多选按钮补充入队；
+/// 退出时若有待传任务弹确认（任务在后台继续——Android 原生 WorkManager
+/// 承担，见 native_transport.dart）。
+///
+/// 相机/相册经注入点（[captureSourceFactoryProvider]/[multiImagePickerProvider]）
+/// 隔离平台通道，widget 测试注入替身驱动。
+library;
+
+import 'dart:async';
+
+import 'package:camera/camera.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../features/albums/models.dart';
+import '../features/uploads/enqueue.dart';
+import '../features/uploads/queue_controller.dart';
+import '../l10n/app_localizations.dart';
+
+// ── 相机源抽象（生产=camera 插件；测试替身） ─────────────────────────────
+
+/// 拍摄源：初始化/拍摄/预览/释放。
+abstract class CaptureSource {
+  /// 初始化（权限缺失/失败抛异常；权限拒绝抛 [CameraException]）。
+  Future<void> initialize();
+
+  /// 拍摄一张（返回源文件）。
+  Future<XFile> capture();
+
+  /// 取景预览。
+  Widget buildPreview();
+
+  /// 释放底层资源。
+  Future<void> dispose();
+}
+
+/// 生产拍摄源：camera 插件（后摄优先，最高分辨率，静音连拍）。
+class CameraPluginSource implements CaptureSource {
+  CameraPluginSource._(this._controller);
+
+  /// 创建并初始化（后摄优先）。
+  static Future<CameraPluginSource> create() async {
+    final cameras = await availableCameras();
+    if (cameras.isEmpty) {
+      throw CameraException('noCamera', 'no camera available');
+    }
+    final back = cameras.firstWhere(
+      (c) => c.lensDirection == CameraLensDirection.back,
+      orElse: () => cameras.first,
+    );
+    final controller = CameraController(back, ResolutionPreset.max,
+        enableAudio: false);
+    await controller.initialize();
+    return CameraPluginSource._(controller);
+  }
+
+  final CameraController _controller;
+
+  @override
+  Future<void> initialize() async {}
+
+  @override
+  Future<XFile> capture() => _controller.takePicture();
+
+  @override
+  Widget buildPreview() => CameraPreview(_controller);
+
+  @override
+  Future<void> dispose() => _controller.dispose();
+}
+
+/// 拍摄源工厂 Provider（测试 override 为替身）。
+final captureSourceFactoryProvider =
+    Provider<Future<CaptureSource> Function()>((ref) => CameraPluginSource.create);
+
+// ── 连拍页 ────────────────────────────────────────────────────────────────
+
+/// 连拍页参数：目标相册（相册详情 FAB 进入时固定）与分类候选。
+class CaptureTarget {
+  const CaptureTarget({
+    required this.accountId,
+    required this.albumId,
+    required this.albumTitle,
+    this.categories = const <Category>[],
+  });
+
+  /// 入队账号（TaskStore 隔离键）。
+  final String accountId;
+
+  /// 目标相册 ID。
+  final String albumId;
+
+  /// 目标相册展示名（信息层常驻显示）。
+  final String albumTitle;
+
+  /// 相册分类（空 = 无可切换项，仅默认分类）。
+  final List<Category> categories;
+}
+
+/// 连拍页。
+class CapturePage extends ConsumerStatefulWidget {
+  const CapturePage({required this.target, super.key});
+
+  final CaptureTarget target;
+
+  @override
+  ConsumerState<CapturePage> createState() => _CapturePageState();
+}
+
+enum _CameraPhase { loading, ready, denied, failed }
+
+class _CapturePageState extends ConsumerState<CapturePage> {
+  CaptureSource? _source;
+  _CameraPhase _phase = _CameraPhase.loading;
+
+  /// 当前分类（null = 相册默认分类；切换仅影响之后拍摄）。
+  String? _categoryId;
+
+  /// 连拍串行链：快门连点逐张落地（相机硬件本就串行）。
+  Future<void> _shotTail = Future<void>.value();
+
+  @override
+  void initState() {
+    super.initState();
+    _initCamera();
+  }
+
+  @override
+  void dispose() {
+    _source?.dispose().ignore();
+    super.dispose();
+  }
+
+  Future<void> _initCamera() async {
+    setState(() => _phase = _CameraPhase.loading);
+    try {
+      final source = await ref.read(captureSourceFactoryProvider)();
+      await source.initialize();
+      if (!mounted) {
+        await source.dispose();
+        return;
+      }
+      _source = source;
+      setState(() => _phase = _CameraPhase.ready);
+    } on Object catch (error) {
+      if (!mounted) return;
+      setState(() => _phase = _isPermissionDenied(error)
+          ? _CameraPhase.denied
+          : _CameraPhase.failed);
+    }
+  }
+
+  /// camera 插件的权限拒绝错误码族（CameraAccessDenied /
+  /// CameraAccessDeniedWithoutD restriction 等）。
+  static bool _isPermissionDenied(Object error) =>
+      error is CameraException &&
+      (error.code.toLowerCase().contains('denied') ||
+          error.code.toLowerCase().contains('permission'));
+
+  /// 快门：立即入队（R17 不逐张确认）；连点串行不丢张。
+  void _shoot() {
+    final source = _source;
+    if (source == null || _phase != _CameraPhase.ready) return;
+    final categoryId = _categoryId;
+    _shotTail = _shotTail.then((_) async {
+      final photo = await source.capture();
+      if (!mounted) return;
+      await enqueueForUpload(
+        ref,
+        accountId: widget.target.accountId,
+        albumId: widget.target.albumId,
+        categoryId: categoryId,
+        sourcePaths: [photo.path],
+      );
+    }).catchError((Object _) {
+      // 单张失败吞掉（连拍不中断；失败任务/错误在徽章与队列页可见）。
+    });
+  }
+
+  /// 相册多选入队（目标 = 当前相册与分类）。
+  Future<void> _pickFromGallery() async {
+    final paths = await ref.read(multiImagePickerProvider)();
+    if (paths.isEmpty || !mounted) return;
+    final l10n = AppLocalizations.of(context);
+    final messenger = ScaffoldMessenger.of(context);
+    final count = await enqueueForUpload(
+      ref,
+      accountId: widget.target.accountId,
+      albumId: widget.target.albumId,
+      categoryId: _categoryId,
+      sourcePaths: paths,
+    );
+    if (!mounted) return;
+    messenger.showSnackBar(
+      SnackBar(content: Text(l10n.uploadEnqueuedCount(count))),
+    );
+  }
+
+  void _switchCategory(String? categoryId) {
+    if (categoryId == _categoryId) return;
+    setState(() => _categoryId = categoryId);
+    // 归属不变提示（A15）：仅影响之后拍摄。
+    ScaffoldMessenger.of(context)
+      ..hideCurrentSnackBar()
+      ..showSnackBar(
+        SnackBar(content: Text(AppLocalizations.of(context).captureSwitchHint)),
+      );
+  }
+
+  Future<void> _confirmExit() async {
+    final l10n = AppLocalizations.of(context);
+    final leave = await showDialog<bool>(
+      context: context,
+      builder: (dialogContext) => AlertDialog(
+        title: Text(l10n.captureExitTitle),
+        content: Text(
+          l10n.captureExitBody(pendingCountOf(ref.read(taskCountsProvider))),
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(dialogContext).pop(false),
+            child: Text(l10n.captureKeepShooting),
+          ),
+          FilledButton(
+            onPressed: () => Navigator.of(dialogContext).pop(true),
+            child: Text(l10n.captureExitConfirm),
+          ),
+        ],
+      ),
+    );
+    if (leave == true && mounted) {
+      Navigator.of(context).pop();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context);
+    final counts = ref.watch(taskCountsProvider);
+    final pending = pendingCountOf(counts);
+    final failed = failedCountOf(counts);
+    final categories = widget.target.categories;
+
+    return PopScope(
+      // 有待传任务 → 拦截退出弹确认（后台继续文案）；无任务直接退出。
+      canPop: pending == 0,
+      onPopInvokedWithResult: (didPop, _) {
+        if (didPop) return;
+        _confirmExit();
+      },
+      child: Scaffold(
+        backgroundColor: Colors.black,
+        appBar: AppBar(
+          backgroundColor: Colors.black87,
+          foregroundColor: Colors.white,
+          title: Text(l10n.captureTitle),
+        ),
+        body: Stack(
+          fit: StackFit.expand,
+          children: [
+            _buildCameraArea(l10n),
+            // 常驻信息层：相册 + 分类 + 待传/失败徽章（R17/O01）。
+            SafeArea(
+              child: Column(
+                children: [
+                  _TargetOverlay(
+                    albumTitle: widget.target.albumTitle,
+                    categories: categories,
+                    categoryId: _categoryId,
+                    onCategorySelected: _switchCategory,
+                    pending: pending,
+                    failed: failed,
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+        bottomNavigationBar: _buildBottomBar(l10n),
+      ),
+    );
+  }
+
+  Widget _buildCameraArea(AppLocalizations l10n) {
+    final source = _source;
+    switch (_phase) {
+      case _CameraPhase.ready:
+        return source!.buildPreview();
+      case _CameraPhase.loading:
+        return const Center(
+          child: CircularProgressIndicator(color: Colors.white),
+        );
+      case _CameraPhase.denied:
+        return _CameraMessageView(
+          icon: Icons.no_photography_outlined,
+          message: l10n.cameraPermissionDenied,
+          actionLabel: l10n.retry,
+          onAction: _initCamera,
+        );
+      case _CameraPhase.failed:
+        return _CameraMessageView(
+          icon: Icons.error_outline,
+          message: l10n.cameraInitFailed,
+          actionLabel: l10n.retry,
+          onAction: _initCamera,
+        );
+    }
+  }
+
+  Widget _buildBottomBar(AppLocalizations l10n) {
+    return BottomAppBar(
+      color: Colors.black87,
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          IconButton(
+            tooltip: l10n.capturePickFromGallery,
+            icon: const Icon(Icons.photo_library_outlined,
+                color: Colors.white),
+            onPressed: _pickFromGallery,
+          ),
+          _ShutterButton(onPressed: _shoot, enabled: _phase == _CameraPhase.ready),
+          // 占位对齐（快门居中）。
+          const SizedBox(width: 48),
+        ],
+      ),
+    );
+  }
+}
+
+// ── 信息层组件 ────────────────────────────────────────────────────────────
+
+/// 顶部常驻信息层：相册名 + 分类 chips（切换仅影响之后拍摄）+ 待传/失败
+/// 徽章。
+class _TargetOverlay extends StatelessWidget {
+  const _TargetOverlay({
+    required this.albumTitle,
+    required this.categories,
+    required this.categoryId,
+    required this.onCategorySelected,
+    required this.pending,
+    required this.failed,
+  });
+
+  final String albumTitle;
+  final List<Category> categories;
+  final String? categoryId;
+  final void Function(String?) onCategorySelected;
+  final int pending;
+  final int failed;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context);
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        Padding(
+          padding: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+          child: Row(
+            children: [
+              const Icon(Icons.photo_album_outlined,
+                  size: 16, color: Colors.white70),
+              const SizedBox(width: 6),
+              Expanded(
+                child: Text(
+                  albumTitle,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                  style: const TextStyle(color: Colors.white),
+                ),
+              ),
+              const SizedBox(width: 8),
+              _Badge(
+                label: l10n.capturePendingBadge(pending),
+                color: Colors.white24,
+                foreground: Colors.white,
+              ),
+              if (failed > 0) ...[
+                const SizedBox(width: 6),
+                _Badge(
+                  label: l10n.captureFailedBadge(failed),
+                  color: Colors.red,
+                  foreground: Colors.white,
+                ),
+              ],
+            ],
+          ),
+        ),
+        if (categories.isNotEmpty)
+          SizedBox(
+            height: 44,
+            child: ListView(
+              scrollDirection: Axis.horizontal,
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
+              children: [
+                ChoiceChip(
+                  label: Text(l10n.captureCategoryDefault),
+                  selected: categoryId == null,
+                  onSelected: (_) => onCategorySelected(null),
+                  labelStyle: const TextStyle(color: Colors.white),
+                  selectedColor: Colors.white24,
+                  backgroundColor: Colors.black38,
+                ),
+                for (final category in categories) ...[
+                  const SizedBox(width: 8),
+                  ChoiceChip(
+                    label: Text(_categoryLabel(category, l10n)),
+                    selected: categoryId == category.id,
+                    onSelected: (_) => onCategorySelected(category.id),
+                    labelStyle: const TextStyle(color: Colors.white),
+                    selectedColor: Colors.white24,
+                    backgroundColor: Colors.black38,
+                  ),
+                ],
+              ],
+            ),
+          ),
+      ],
+    );
+  }
+
+  static String _categoryLabel(Category category, AppLocalizations l10n) {
+    final lang = l10n.localeName.split('-').first.toLowerCase();
+    CategoryTranslation? match;
+    for (final t in category.translations) {
+      if (t.locale.toLowerCase() == l10n.localeName.toLowerCase() ||
+          t.locale.toLowerCase().split('-').first == lang) {
+        match = t;
+        break;
+      }
+    }
+    if (match != null) return match.name;
+    return category.translations.isEmpty
+        ? category.id
+        : category.translations.first.name;
+  }
+}
+
+/// 徽章（待传/失败计数）。
+class _Badge extends StatelessWidget {
+  const _Badge({
+    required this.label,
+    required this.color,
+    required this.foreground,
+  });
+
+  final String label;
+  final Color color;
+  final Color foreground;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
+      decoration: BoxDecoration(
+        color: color,
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Text(
+        label,
+        style: TextStyle(color: foreground, fontSize: 12),
+      ),
+    );
+  }
+}
+
+/// 快门按钮（连拍：不进入模态确认，逐张自动入队）。
+class _ShutterButton extends StatelessWidget {
+  const _ShutterButton({required this.onPressed, required this.enabled});
+
+  final VoidCallback onPressed;
+  final bool enabled;
+
+  @override
+  Widget build(BuildContext context) {
+    return Semantics(
+      button: true,
+      label: AppLocalizations.of(context).captureShutter,
+      child: IconButton(
+        onPressed: enabled ? onPressed : null,
+        iconSize: 64,
+        icon: Container(
+          width: 64,
+          height: 64,
+          decoration: BoxDecoration(
+            shape: BoxShape.circle,
+            border: Border.all(color: Colors.white, width: 4),
+          ),
+          child: const Icon(Icons.camera, color: Colors.white),
+        ),
+      ),
+    );
+  }
+}
+
+/// 相机不可用视图（权限拒绝/初始化失败）：说明 + 重试。
+class _CameraMessageView extends StatelessWidget {
+  const _CameraMessageView({
+    required this.icon,
+    required this.message,
+    required this.actionLabel,
+    required this.onAction,
+  });
+
+  final IconData icon;
+  final String message;
+  final String actionLabel;
+  final VoidCallback onAction;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Colors.black87,
+      child: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Icon(icon, size: 48, color: Colors.white70),
+            const SizedBox(height: 12),
+            Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 32),
+              child: Text(
+                message,
+                textAlign: TextAlign.center,
+                style: const TextStyle(color: Colors.white),
+              ),
+            ),
+            const SizedBox(height: 16),
+            FilledButton.icon(
+              onPressed: onAction,
+              icon: const Icon(Icons.refresh),
+              label: Text(actionLabel),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
diff --git a/apps/mobile/lib/pages/home_page.dart b/apps/mobile/lib/pages/home_page.dart
index 5d0bb34..a05c40f 100644
--- a/apps/mobile/lib/pages/home_page.dart
+++ b/apps/mobile/lib/pages/home_page.dart
@@ -2,8 +2,10 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../core/api_client.dart';
+import '../features/uploads/engine_scope.dart';
 import '../l10n/app_localizations.dart';
 import 'albums_tab.dart';
+import 'queue_tab.dart';
 
 /// 主壳：底部导航（相册 / 队列 / 设置）。
 class HomePage extends StatefulWidget {
@@ -54,45 +56,6 @@ class _HomePageState extends State<HomePage> {
   }
 }
 
-/// 上传队列（桩）。Task 9：状态机展示、筛选与重试；当前仅提供
-/// 服务端上传历史入口（A19 跨设备记录）。
-class QueueTab extends StatelessWidget {
-  const QueueTab({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    final l10n = AppLocalizations.of(context);
-    final theme = Theme.of(context);
-    return Scaffold(
-      appBar: AppBar(title: Text(l10n.queue)),
-      body: Center(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: [
-            Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 32),
-              child: Text(
-                l10n.queueStubHint,
-                textAlign: TextAlign.center,
-                style: theme.textTheme.bodyMedium?.copyWith(
-                  color: theme.colorScheme.onSurfaceVariant,
-                ),
-              ),
-            ),
-            const SizedBox(height: 16),
-            FilledButton.tonalIcon(
-              onPressed: () =>
-                  Navigator.of(context).pushNamed('/server-history'),
-              icon: const Icon(Icons.history_outlined),
-              label: Text(l10n.serverHistoryEntry),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
-
 /// 设置页（P3 Task 3：修改密码入口 + 退出登录；Task 10 补语言切换持久化）。
 class SettingsTab extends ConsumerWidget {
   const SettingsTab({super.key});
@@ -100,6 +63,8 @@ class SettingsTab extends ConsumerWidget {
   Future<void> _logout(BuildContext context, WidgetRef ref) async {
     // api.logout 尽力而为（服务端撤销失败也照常本地清会话——客户端内已处理）。
     await ref.read(apiClientProvider).logout();
+    // 会话账号失效 → 引擎 stop（任务保留库内，见 engine_scope.dart）。
+    await ref.read(sessionAccountProvider.notifier).refresh();
     if (!context.mounted) return;
     Navigator.of(context).pushNamedAndRemoveUntil('/login', (route) => false);
   }
diff --git a/apps/mobile/lib/pages/login_page.dart b/apps/mobile/lib/pages/login_page.dart
index 867bd75..ef86f16 100644
--- a/apps/mobile/lib/pages/login_page.dart
+++ b/apps/mobile/lib/pages/login_page.dart
@@ -4,6 +4,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../core/api_client.dart';
 import '../core/app_exception.dart';
 import '../core/error_l10n.dart';
+import '../features/uploads/engine_scope.dart';
 import '../l10n/app_localizations.dart';
 
 /// 登录页（P3 计划 Task 3）。
@@ -44,6 +45,8 @@ class _LoginPageState extends ConsumerState<LoginPage> {
             _accountController.text.trim(),
             _passwordController.text,
           );
+      // 登录成功：刷新会话账号 → 引擎以新账号 scope start（Task 9 接线）。
+      await ref.read(sessionAccountProvider.notifier).refresh();
       navigator.pushReplacementNamed('/home');
     } on AppException catch (error) {
       // 429（AUTH_RATE_LIMITED）等文案经错误码映射；登录页的
diff --git a/apps/mobile/lib/pages/queue_tab.dart b/apps/mobile/lib/pages/queue_tab.dart
new file mode 100644
index 0000000..e20ec9a
--- /dev/null
+++ b/apps/mobile/lib/pages/queue_tab.dart
@@ -0,0 +1,586 @@
+/// 上传队列页（P3 计划 Task 9，需求 4.3 / R17 / O01）。
+///
+/// 三维筛选（相册下拉 × 状态 chips × 时间快捷）→ [QueueFilter]；任务行
+/// = 缩略图（受管副本，缺失/已清理显示占位）+ 文件名 + 相册名 + 状态
+/// 徽章 + 尝试/错误（本地化错误码）+ 传输进度（进度总线行级订阅）+ 按
+/// 状态动作（重试/取消/删除）；失败任务存在时底部「一键重试全部失败」。
+/// 列表经 TaskStore 写通知 + 200ms 防抖实时刷新（连拍风暴不逐条重建）。
+library;
+
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../features/albums/models.dart';
+import '../features/albums/providers.dart';
+import '../features/uploads/engine_scope.dart';
+import '../features/uploads/enqueue.dart';
+import '../features/uploads/providers.dart';
+import '../features/uploads/queue_controller.dart';
+import '../features/uploads/queue_l10n.dart';
+import '../features/uploads/task_state.dart';
+import '../features/uploads/task_store.dart';
+import '../l10n/app_localizations.dart';
+
+/// 队列 Tab（主壳 IndexedStack 内常驻）。
+class QueueTab extends ConsumerWidget {
+  const QueueTab({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final counts = ref.watch(taskCountsProvider);
+    final autoRetryable = (counts[UploadTaskState.retryableFailed] ?? 0) +
+        (counts[UploadTaskState.waitingNetwork] ?? 0);
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(l10n.queue),
+        actions: [
+          IconButton(
+            tooltip: l10n.serverHistoryEntry,
+            icon: const Icon(Icons.history_outlined),
+            onPressed: () =>
+                Navigator.of(context).pushNamed('/server-history'),
+          ),
+        ],
+      ),
+      body: const Column(
+        children: [
+          _FilterBar(),
+          Expanded(child: _TaskListView()),
+        ],
+      ),
+      bottomNavigationBar: autoRetryable > 0 ? const _BatchRetryBar() : null,
+    );
+  }
+}
+
+// ── 筛选栏 ────────────────────────────────────────────────────────────────
+
+/// 筛选栏：相册下拉 + 时间快捷 chips + 状态分组 chips（需求 4.3 三维）。
+class _FilterBar extends ConsumerWidget {
+  const _FilterBar();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
+    final filter = ref.watch(queueFilterProvider);
+    final albums = ref.watch(albumListProvider).items;
+
+    return Material(
+      color: theme.colorScheme.surfaceContainerLow,
+      child: Padding(
+        padding: const EdgeInsets.fromLTRB(16, 8, 16, 4),
+        child: Column(
+          children: [
+            Row(
+              children: [
+                Icon(Icons.filter_list,
+                    size: 18, color: theme.colorScheme.onSurfaceVariant),
+                const SizedBox(width: 8),
+                Expanded(child: _AlbumDropdown(filter: filter, albums: albums)),
+              ],
+            ),
+            const SizedBox(height: 4),
+            SingleChildScrollView(
+              scrollDirection: Axis.horizontal,
+              child: Row(
+                children: [
+                  for (final (i, time) in QueueTimeFilter.values.indexed) ...[
+                    if (i > 0) const SizedBox(width: 8),
+                    ChoiceChip(
+                      label: Text(_timeLabel(l10n, time)),
+                      selected: filter.time == time,
+                      onSelected: (_) => ref
+                          .read(queueFilterProvider.notifier)
+                          .setTime(time),
+                      visualDensity: VisualDensity.compact,
+                    ),
+                  ],
+                ],
+              ),
+            ),
+            const SizedBox(height: 4),
+            SingleChildScrollView(
+              scrollDirection: Axis.horizontal,
+              child: Row(
+                children: [
+                  for (final (i, state) in QueueStateFilter.values.indexed) ...[
+                    if (i > 0) const SizedBox(width: 8),
+                    ChoiceChip(
+                      label: Text(_stateLabel(l10n, state)),
+                      selected: filter.state == state,
+                      onSelected: (_) => ref
+                          .read(queueFilterProvider.notifier)
+                          .setStateGroup(state),
+                      visualDensity: VisualDensity.compact,
+                    ),
+                  ],
+                ],
+              ),
+            ),
+            const SizedBox(height: 4),
+          ],
+        ),
+      ),
+    );
+  }
+
+  static String _stateLabel(AppLocalizations l10n, QueueStateFilter state) =>
+      switch (state) {
+        QueueStateFilter.all => l10n.queueStateAll,
+        QueueStateFilter.preparing => l10n.queueStatePreparing,
+        QueueStateFilter.queued => l10n.queueStateQueued,
+        QueueStateFilter.uploading => l10n.queueStateUploading,
+        QueueStateFilter.waitingNetwork => l10n.queueStateWaitingNetwork,
+        QueueStateFilter.failed => l10n.queueStateFailed,
+        QueueStateFilter.completed => l10n.queueStateCompleted,
+      };
+
+  static String _timeLabel(AppLocalizations l10n, QueueTimeFilter time) =>
+      switch (time) {
+        QueueTimeFilter.all => l10n.queueTimeAll,
+        QueueTimeFilter.today => l10n.queueTimeToday,
+        QueueTimeFilter.last7Days => l10n.queueTimeLast7Days,
+        QueueTimeFilter.last30Days => l10n.queueTimeLast30Days,
+      };
+}
+
+/// 相册下拉（全部相册 + 相册列表缓存；选中相册不在列表时退回全部）。
+class _AlbumDropdown extends ConsumerWidget {
+  const _AlbumDropdown({required this.filter, required this.albums});
+
+  final QueueFilter filter;
+  final List<AlbumSummary> albums;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final knownIds = albums.map((a) => a.id).toSet();
+    final value =
+        filter.albumId != null && knownIds.contains(filter.albumId)
+            ? filter.albumId
+            : null;
+    return DropdownButton<String?>(
+      value: value,
+      isExpanded: true,
+      underline: const SizedBox.shrink(),
+      hint: Text(l10n.queueAlbumFilterAll),
+      items: [
+        DropdownMenuItem<String?>(
+          value: null,
+          child: Text(
+            l10n.queueAlbumFilterAll,
+            style: Theme.of(context).textTheme.bodyMedium,
+          ),
+        ),
+        for (final album in albums)
+          DropdownMenuItem<String?>(
+            value: album.id,
+            child: Text(
+              albumDisplayTitle(album, l10n.localeName),
+              maxLines: 1,
+              overflow: TextOverflow.ellipsis,
+            ),
+          ),
+      ],
+      onChanged: (albumId) =>
+          ref.read(queueFilterProvider.notifier).setAlbum(albumId),
+    );
+  }
+}
+
+// ── 任务列表 ──────────────────────────────────────────────────────────────
+
+class _TaskListView extends ConsumerWidget {
+  const _TaskListView();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final tasksAsync = ref.watch(queueTasksProvider);
+    return tasksAsync.when(
+      skipLoadingOnReload: true,
+      loading: () => const Center(child: CircularProgressIndicator()),
+      error: (error, _) => Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Text(l10n.errorGeneric),
+            const SizedBox(height: 8),
+            FilledButton.tonal(
+              onPressed: () => ref.invalidate(queueTasksProvider),
+              child: Text(l10n.retry),
+            ),
+          ],
+        ),
+      ),
+      data: (tasks) {
+        if (tasks.isEmpty) {
+          return Center(child: Text(l10n.queueEmpty));
+        }
+        return ListView.builder(
+          padding: const EdgeInsets.symmetric(vertical: 4),
+          itemCount: tasks.length,
+          itemBuilder: (context, index) =>
+              _TaskTile(task: tasks[index]),
+        );
+      },
+    );
+  }
+}
+
+/// 单条任务行。
+class _TaskTile extends ConsumerWidget {
+  const _TaskTile({required this.task});
+
+  final UploadTask task;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
+    final album = ref
+        .watch(albumListProvider)
+        .items
+        .where((a) => a.id == task.albumId)
+        .firstOrNull;
+    final albumName = album != null
+        ? albumDisplayTitle(album, l10n.localeName)
+        : task.albumId;
+    final failedLike = task.state == UploadTaskState.preparationFailed ||
+        task.state == UploadTaskState.retryableFailed ||
+        task.state == UploadTaskState.waitingNetwork;
+
+    return ListTile(
+      leading: _Thumb(
+        path: task.cleanedAt == null ? task.sourceFilePath : null,
+      ),
+      title: Text(
+        task.filename,
+        maxLines: 1,
+        overflow: TextOverflow.ellipsis,
+      ),
+      subtitle: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          const SizedBox(height: 2),
+          Row(
+            children: [
+              _StateChip(state: task.state),
+              const SizedBox(width: 8),
+              Expanded(
+                child: Text(
+                  albumName,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                  style: theme.textTheme.bodySmall
+                      ?.copyWith(color: theme.colorScheme.onSurfaceVariant),
+                ),
+              ),
+            ],
+          ),
+          if (failedLike && task.lastError != null) ...[
+            const SizedBox(height: 2),
+            Text(
+              task.attempt > 0
+                  ? '${l10n.messageForTaskError(task.lastError!)} · '
+                      '${l10n.queueAttemptCount(task.attempt)}'
+                  : l10n.messageForTaskError(task.lastError!),
+              maxLines: 2,
+              overflow: TextOverflow.ellipsis,
+              style: theme.textTheme.bodySmall
+                  ?.copyWith(color: theme.colorScheme.error),
+            ),
+          ],
+          if (task.state == UploadTaskState.uploading ||
+              task.state == UploadTaskState.uploadedConfirming)
+            _ProgressLine(
+              taskId: task.id,
+              confirming: task.state == UploadTaskState.uploadedConfirming,
+            ),
+        ],
+      ),
+      trailing: _TaskActions(task: task),
+    );
+  }
+}
+
+/// 缩略图：受管副本存在则显示，缺失/已清理/解码失败显示占位图标。
+class _Thumb extends StatelessWidget {
+  const _Thumb({required this.path});
+
+  final String? path;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    Widget placeholder() => Container(
+          width: 48,
+          height: 48,
+          decoration: BoxDecoration(
+            color: theme.colorScheme.surfaceContainerHighest,
+            borderRadius: BorderRadius.circular(6),
+          ),
+          child: Icon(
+            Icons.image_outlined,
+            size: 24,
+            color: theme.colorScheme.onSurfaceVariant,
+          ),
+        );
+    if (path == null) return placeholder();
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(6),
+      child: SizedBox(
+        width: 48,
+        height: 48,
+        child: Image.file(
+          File(path!),
+          fit: BoxFit.cover,
+          errorBuilder: (_, _, _) => placeholder(),
+        ),
+      ),
+    );
+  }
+}
+
+/// 状态徽章（分组配色：失败红/完成绿/进行中主色/等待橙/其余中性）。
+class _StateChip extends StatelessWidget {
+  const _StateChip({required this.state});
+
+  final UploadTaskState state;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
+    final (color, onColor) = switch (state) {
+      UploadTaskState.preparing => (
+          theme.colorScheme.surfaceContainerHighest,
+          theme.colorScheme.onSurfaceVariant
+        ),
+      UploadTaskState.preparationFailed ||
+      UploadTaskState.retryableFailed => (
+          theme.colorScheme.errorContainer,
+          theme.colorScheme.onErrorContainer
+        ),
+      UploadTaskState.queued => (
+          theme.colorScheme.secondaryContainer,
+          theme.colorScheme.onSecondaryContainer
+        ),
+      UploadTaskState.uploading ||
+      UploadTaskState.uploadedConfirming => (
+          theme.colorScheme.primaryContainer,
+          theme.colorScheme.onPrimaryContainer
+        ),
+      UploadTaskState.completed => (
+          theme.colorScheme.tertiaryContainer,
+          theme.colorScheme.onTertiaryContainer
+        ),
+      UploadTaskState.waitingNetwork => (
+          theme.colorScheme.tertiaryContainer,
+          theme.colorScheme.onTertiaryContainer
+        ),
+      UploadTaskState.cancelled => (
+          theme.colorScheme.surfaceContainerHighest,
+          theme.colorScheme.onSurfaceVariant
+        ),
+    };
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
+      decoration: BoxDecoration(
+        color: color,
+        borderRadius: BorderRadius.circular(999),
+      ),
+      child: Text(
+        l10n.labelForTaskState(state),
+        style: theme.textTheme.labelSmall?.copyWith(color: onColor),
+      ),
+    );
+  }
+}
+
+/// 传输进度行：上传中 = 进度总线行级订阅（分数进度条）；确认中 = 不确定
+/// 进度条（等待服务端核验）。
+class _ProgressLine extends ConsumerWidget {
+  const _ProgressLine({required this.taskId, required this.confirming});
+
+  final String taskId;
+  final bool confirming;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return Padding(
+      padding: const EdgeInsets.only(top: 6, right: 8),
+      child: StreamBuilder<UploadTaskProgress>(
+        stream: ref
+            .watch(uploadProgressHubProvider)
+            .stream
+            .where((p) => p.taskId == taskId),
+        builder: (context, snapshot) {
+          final fraction = snapshot.data?.fraction;
+          return LinearProgressIndicator(
+            value: confirming ? null : fraction,
+            minHeight: 4,
+          );
+        },
+      ),
+    );
+  }
+}
+
+/// 行级动作（按状态；未登录账号缺席时禁用）。
+class _TaskActions extends ConsumerWidget {
+  const _TaskActions({required this.task});
+
+  final UploadTask task;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final account = ref.watch(sessionAccountProvider).value;
+    switch (task.state) {
+      case UploadTaskState.preparationFailed:
+        // 准备失败重试 = 重新选图（原始源路径不落库，见准备器注释）。
+        return IconButton(
+          tooltip: l10n.retry,
+          icon: const Icon(Icons.refresh),
+          onPressed: account == null
+              ? null
+              : () => _retryPreparation(context, ref, account),
+        );
+      case UploadTaskState.retryableFailed:
+      case UploadTaskState.waitingNetwork:
+        return IconButton(
+          tooltip: l10n.retry,
+          icon: const Icon(Icons.refresh),
+          onPressed: account == null
+              ? null
+              : () => ref
+                  .read(uploadEngineProvider)
+                  .retryNow(account, task.id),
+        );
+      case UploadTaskState.queued:
+      case UploadTaskState.preparing:
+        return IconButton(
+          tooltip: l10n.cancel,
+          icon: const Icon(Icons.close),
+          onPressed: account == null
+              ? null
+              : () => ref.read(uploadEngineProvider).cancel(account, task.id),
+        );
+      case UploadTaskState.completed:
+      case UploadTaskState.cancelled:
+        return IconButton(
+          tooltip: l10n.delete,
+          icon: const Icon(Icons.delete_outline),
+          onPressed: account == null ? null : () => _delete(ref, account),
+        );
+      case UploadTaskState.uploading:
+      case UploadTaskState.uploadedConfirming:
+        return const SizedBox(width: 48);
+    }
+  }
+
+  /// 准备失败重试：重新选图 → preparer.retry（换源重新复制入队）。
+  Future<void> _retryPreparation(
+    BuildContext context,
+    WidgetRef ref,
+    String account,
+  ) async {
+    final l10n = AppLocalizations.of(context);
+    final sourcePath = await ref.read(singleImagePickerProvider)();
+    if (sourcePath == null || !context.mounted) return;
+    final messenger = ScaffoldMessenger.of(context);
+    try {
+      await ref.read(uploadPreparerProvider).retry(
+            accountId: account,
+            taskId: task.id,
+            sourcePath: sourcePath,
+          );
+    } on Object {
+      messenger.showSnackBar(
+        SnackBar(content: Text(l10n.errorGeneric)),
+      );
+    }
+  }
+
+  /// 终态删除：删行 + 尽力删受管副本（行删除后清理执行器不再可见该文件）。
+  Future<void> _delete(WidgetRef ref, String account) async {
+    final store = ref.read(taskStoreProvider);
+    await store.delete(task.id);
+    if (task.cleanedAt == null) {
+      try {
+        final file = File(task.sourceFilePath);
+        if (await file.exists()) {
+          await file.delete();
+        }
+      } on Object {
+        // 文件删除失败接受（无行可追责，残留由用户重装/系统清理回收）。
+      }
+    }
+  }
+}
+
+/// 底部批量重试条（存在可自动重试的失败任务时出现）。
+class _BatchRetryBar extends ConsumerWidget {
+  const _BatchRetryBar();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
+    final counts = ref.watch(taskCountsProvider);
+    final failed = failedCountOf(counts);
+    return Material(
+      color: theme.colorScheme.errorContainer,
+      child: SafeArea(
+        child: Padding(
+          padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
+          child: Row(
+            children: [
+              Icon(Icons.error_outline, color: theme.colorScheme.onErrorContainer),
+              const SizedBox(width: 8),
+              Expanded(
+                child: Text(
+                  '${l10n.queueStateFailed} · $failed',
+                  style: theme.textTheme.bodyMedium
+                      ?.copyWith(color: theme.colorScheme.onErrorContainer),
+                ),
+              ),
+              FilledButton.icon(
+                style: FilledButton.styleFrom(
+                  backgroundColor: theme.colorScheme.error,
+                  foregroundColor: theme.colorScheme.onError,
+                ),
+                icon: const Icon(Icons.refresh, size: 18),
+                label: Text(l10n.queueRetryAllFailed),
+                onPressed: () => _retryAll(ref),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  /// 全部可自动重试任务（retryableFailed + waitingNetwork，跨当前筛选）
+  /// 立即重新入队。
+  Future<void> _retryAll(WidgetRef ref) async {
+    final account = ref.read(sessionAccountProvider).value;
+    if (account == null) return;
+    final engine = ref.read(uploadEngineProvider);
+    final tasks = await ref.read(taskStoreProvider).listByAccount(
+          account,
+          states: const {
+            UploadTaskState.retryableFailed,
+            UploadTaskState.waitingNetwork,
+          },
+        );
+    for (final task in tasks) {
+      await engine.retryNow(account, task.id);
+    }
+  }
+}
diff --git a/apps/mobile/test/app/app_shell_test.dart b/apps/mobile/test/app/app_shell_test.dart
index 123bdef..1c053d8 100644
--- a/apps/mobile/test/app/app_shell_test.dart
+++ b/apps/mobile/test/app/app_shell_test.dart
@@ -33,9 +33,11 @@ void main() {
     );
 
     // PhotoLiveApp.initState 读取被 override 的客户端并注册 onUnauthorized。
+    // Task 9 起根组件 watch 引擎作用域（会话→引擎 start），真实
+    // flutter_secure_storage/path_provider 平台通道在测试环境挂起，须替身。
     await tester.pumpWidget(
       ProviderScope(
-        overrides: [apiClientProvider.overrideWith((ref) => client)],
+        overrides: [...pageTestOverrides(session: store, client: client)],
         child: const PhotoLiveApp(),
       ),
     );
diff --git a/apps/mobile/test/core/notification_permission_test.dart b/apps/mobile/test/core/notification_permission_test.dart
new file mode 100644
index 0000000..4e5966b
--- /dev/null
+++ b/apps/mobile/test/core/notification_permission_test.dart
@@ -0,0 +1,80 @@
+/// POST_NOTIFICATIONS 权限门测试（P3 计划 Task 9）。
+///
+/// 覆盖：Android 首次请求一次（幂等，二次调用不触通道）、非 Android 跳过、
+/// 通道缺失/异常静默降级不阻断入队。
+library;
+
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:photo_live/core/notification_permission.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  const channel = MethodChannel(NotificationPermission.kChannelName);
+  // 测试绑定的 defaultBinaryMessenger 即 TestDefaultBinaryMessenger
+  // （setMockMethodCallHandler 所在）。
+  final byteData = TestWidgetsFlutterBinding.instance.defaultBinaryMessenger;
+
+  tearDown(() => byteData.setMockMethodCallHandler(channel, null));
+
+  test('Android：首次请求触发通道一次；再次调用不再打扰（幂等）', () async {
+    var calls = 0;
+    byteData.setMockMethodCallHandler(channel, (call) async {
+      expect(call.method, 'requestPostNotifications');
+      calls++;
+      return 'granted';
+    });
+    final permission =
+        NotificationPermission(isAndroid: true, channel: channel);
+
+    await permission.ensureRequested();
+    await permission.ensureRequested();
+    await permission.ensureRequested();
+
+    expect(calls, 1, reason: '进程内只请求一次');
+  });
+
+  test('非 Android：不触通道（iOS 后台传输不依赖通知权限）', () async {
+    var calls = 0;
+    byteData.setMockMethodCallHandler(channel, (call) async {
+      calls++;
+      return 'granted';
+    });
+    final permission =
+        NotificationPermission(isAndroid: false, channel: channel);
+
+    await permission.ensureRequested();
+
+    expect(calls, 0);
+  });
+
+  test('通道缺失（iOS/桌面无此方法）→ 静默降级不抛', () async {
+    byteData.setMockMethodCallHandler(
+      channel,
+      (call) async => throw MissingPluginException('no handler'),
+    );
+    final permission =
+        NotificationPermission(isAndroid: true, channel: channel);
+
+    await permission.ensureRequested(); // 不抛即通过。
+  });
+
+  test('通道异常后仍标记已请求（失败也不二次打扰）', () async {
+    var calls = 0;
+    byteData.setMockMethodCallHandler(
+      channel,
+      (call) async {
+        calls++;
+        throw PlatformException(code: 'ACTIVITY_MISSING');
+      },
+    );
+    final permission =
+        NotificationPermission(isAndroid: true, channel: channel);
+
+    await permission.ensureRequested();
+    await permission.ensureRequested();
+
+    expect(calls, 1);
+  });
+}
diff --git a/apps/mobile/test/features/uploads/engine_scope_test.dart b/apps/mobile/test/features/uploads/engine_scope_test.dart
new file mode 100644
index 0000000..5720cf6
--- /dev/null
+++ b/apps/mobile/test/features/uploads/engine_scope_test.dart
@@ -0,0 +1,154 @@
+/// 引擎生命周期绑定测试（P3 计划 Task 9，Task 6 关注点 1 接线）。
+///
+/// ProviderContainer 级（非 widget）：登录会话账号 → uploadEngineScopeProvider
+/// 驱动 UploadEngine.start/stop。覆盖：登录启动、登出停止且任务保留库内、
+/// 账号切换重启。真实平台通道（secure storage 等）全部以替身注入。
+library;
+
+import 'package:dio/dio.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:photo_live/core/api_client.dart';
+import 'package:photo_live/core/device_id.dart';
+import 'package:photo_live/core/session_store.dart';
+import 'package:photo_live/features/uploads/engine_scope.dart';
+import 'package:photo_live/features/uploads/providers.dart';
+import 'package:photo_live/features/uploads/task_state.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
+
+import '../../helpers/fakes.dart';
+
+/// 固定设备 ID（引擎出队才会读；空库场景实际不触网络）。
+class _FixedDeviceIdStore implements DeviceIdStore {
+  @override
+  Future<String?> read() async => '0123456789abcdef0123456789abcdef';
+  @override
+  Future<void> write(String value) async {}
+}
+
+void main() {
+  late FakeSessionStore session;
+  late TaskStore store;
+
+  setUp(() {
+    session = FakeSessionStore();
+    store = TaskStore.memory();
+  });
+
+  tearDown(() => store.close());
+
+  ProviderContainer pumpContainer() {
+    final container = ProviderContainer(
+      overrides: [
+        sessionStoreProvider.overrideWithValue(session),
+        taskStoreProvider.overrideWithValue(store),
+        deviceIdProvider
+            .overrideWith((ref) => DeviceId(store: _FixedDeviceIdStore())),
+        apiClientProvider.overrideWith(
+          (ref) => ApiClient(
+            sessionStore: session,
+            dio: Dio(BaseOptions(baseUrl: 'http://test.local'))
+              ..httpClientAdapter = FakeAdapter(
+                (_) => throw StateError('空库场景不应发起请求'),
+              ),
+          ),
+        ),
+      ],
+    );
+    addTearDown(container.dispose);
+    return container;
+  }
+
+  /// 读一次 scope Provider 使绑定生效，并等会话账号 future 落定。
+  Future<String?> settleScope(ProviderContainer container) async {
+    final account = await container.read(sessionAccountProvider.future);
+    // 触发 scope Provider 重建（引擎 start/stop 发生在 watch 传播中）。
+    container.read(uploadEngineScopeProvider);
+    await Future<void>.delayed(Duration.zero);
+    return account;
+  }
+
+  test('登录（会话在场）→ 引擎 start（isRunning，scope=账号）', () async {
+    session.session = Session(
+      token: 'tok-1',
+      expiresAt: DateTime.utc(2099, 1, 1),
+      account: 'alice',
+    );
+    final container = pumpContainer();
+
+    final account = await settleScope(container);
+    final engine = container.read(uploadEngineProvider);
+
+    expect(account, 'alice');
+    expect(container.read(uploadEngineScopeProvider), 'alice');
+    expect(engine.isRunning, isTrue, reason: '登录后引擎应周期出队');
+  });
+
+  test('登出 → 引擎 stop，任务行保留库内', () async {
+    session.session = Session(
+      token: 'tok-1',
+      expiresAt: DateTime.utc(2099, 1, 1),
+      account: 'alice',
+    );
+    final container = pumpContainer();
+    await settleScope(container);
+    final engine = container.read(uploadEngineProvider);
+    expect(engine.isRunning, isTrue);
+
+    // 种子一条任务（登出后必须保留——账号切换安全由 accountId 硬隔离保障）。
+    final task = await store.create(UploadTaskDraft(
+      id: 'task-keep',
+      accountId: 'alice',
+      albumId: 'alb-1',
+      clientTaskId: 'ct-keep',
+      sourceFilePath: '/tmp/keep.jpg',
+      filename: 'keep.jpg',
+      bytes: 16,
+      contentType: 'image/jpeg',
+    ));
+    expect(task.state, UploadTaskState.preparing);
+
+    session.session = null;
+    await container.read(sessionAccountProvider.notifier).refresh();
+    await Future<void>.delayed(Duration.zero);
+
+    expect(engine.isRunning, isFalse, reason: '登出后引擎必须停止出队');
+    expect(container.read(uploadEngineScopeProvider), isNull);
+    expect(
+      await store.get('alice', 'task-keep'),
+      isNotNull,
+      reason: '登出不清任务库',
+    );
+  });
+
+  test('账号切换 alice → bob → 引擎随新账号重启', () async {
+    session.session = Session(
+      token: 'tok-1',
+      expiresAt: DateTime.utc(2099, 1, 1),
+      account: 'alice',
+    );
+    final container = pumpContainer();
+    await settleScope(container);
+    expect(container.read(uploadEngineScopeProvider), 'alice');
+
+    session.session = Session(
+      token: 'tok-2',
+      expiresAt: DateTime.utc(2099, 1, 1),
+      account: 'bob',
+    );
+    await container.read(sessionAccountProvider.notifier).refresh();
+    await Future<void>.delayed(Duration.zero);
+
+    final engine = container.read(uploadEngineProvider);
+    expect(container.read(uploadEngineScopeProvider), 'bob');
+    expect(engine.isRunning, isTrue, reason: '切换账号 = 新 scope 继续出队');
+  });
+
+  test('未登录启动 App → 引擎不启动', () async {
+    final container = pumpContainer();
+    await settleScope(container);
+
+    expect(container.read(uploadEngineScopeProvider), isNull);
+    expect(container.read(uploadEngineProvider).isRunning, isFalse);
+  });
+}
diff --git a/apps/mobile/test/features/uploads/queue_filter_test.dart b/apps/mobile/test/features/uploads/queue_filter_test.dart
new file mode 100644
index 0000000..ed561ee
--- /dev/null
+++ b/apps/mobile/test/features/uploads/queue_filter_test.dart
@@ -0,0 +1,265 @@
+/// 队列筛选纯逻辑测试（P3 计划 Task 9，需求 4.3 三维筛选）。
+///
+/// 覆盖：状态分组映射、时间快捷 cutoff、[QueueFilter.matches] 全矩阵
+/// （相册 × 状态 × 时间 + 时区归一边界）、计数汇总与 copyWith。
+/// 任务行经内存 TaskStore 种子（真实迁移链，无需 widget。
+library;
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:photo_live/features/uploads/queue_controller.dart';
+import 'package:photo_live/features/uploads/task_state.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
+
+void main() {
+  late TaskStore store;
+  var seq = 0;
+
+  setUp(() {
+    store = TaskStore.memory();
+    seq = 0;
+  });
+
+  tearDown(() => store.close());
+
+  /// 种子一条指定状态/相册/创建时间的任务（真实迁移链抵达目标状态）。
+  Future<UploadTask> seedTask({
+    String accountId = 'alice',
+    String albumId = 'alb-1',
+    UploadTaskState state = UploadTaskState.queued,
+    DateTime? createdAt,
+  }) async {
+    final id = 'task-${seq++}';
+    final draft = UploadTaskDraft(
+      id: id,
+      accountId: accountId,
+      albumId: albumId,
+      clientTaskId: 'ct-$id',
+      sourceFilePath: '/tmp/$id.jpg',
+      filename: '$id.jpg',
+      bytes: 16,
+      contentType: 'image/jpeg',
+    );
+    var task = await store.create(draft, now: createdAt);
+    // 迁移链：preparing → 目标态（按状态机合法路径逐步推进）。
+    switch (state) {
+      case UploadTaskState.preparing:
+        break;
+      case UploadTaskState.preparationFailed:
+        task = await store.updateState(task.id, state, now: createdAt);
+      case UploadTaskState.queued:
+      case UploadTaskState.cancelled:
+        task = await store.updateState(task.id, state, now: createdAt);
+      case UploadTaskState.waitingNetwork:
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.queued,
+          now: createdAt,
+        );
+        task = await store.updateState(task.id, state, now: createdAt);
+      case UploadTaskState.uploading:
+      case UploadTaskState.retryableFailed:
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.queued,
+          now: createdAt,
+        );
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.uploading,
+          now: createdAt,
+        );
+        if (state == UploadTaskState.retryableFailed) {
+          task = await store.updateState(task.id, state, now: createdAt);
+        }
+      case UploadTaskState.uploadedConfirming:
+      case UploadTaskState.completed:
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.queued,
+          now: createdAt,
+        );
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.uploading,
+          now: createdAt,
+        );
+        task = await store.updateState(
+          task.id,
+          UploadTaskState.uploadedConfirming,
+          now: createdAt,
+        );
+        if (state == UploadTaskState.completed) {
+          task = await store.updateState(task.id, state, now: createdAt);
+        }
+    }
+    return task;
+  }
+
+  group('QueueStateFilter.states 分组', () {
+    test('all → 空集（不过滤）', () {
+      expect(QueueStateFilter.all.states, isEmpty);
+    });
+
+    test('failed 组 = 准备失败 + 上传失败（不含等待网络）', () {
+      expect(QueueStateFilter.failed.states, {
+        UploadTaskState.preparationFailed,
+        UploadTaskState.retryableFailed,
+      });
+    });
+
+    test('uploading 组 = 上传中 + 确认中；completed 组不含 cancelled', () {
+      expect(QueueStateFilter.uploading.states, {
+        UploadTaskState.uploading,
+        UploadTaskState.uploadedConfirming,
+      });
+      expect(QueueStateFilter.completed.states,
+          {UploadTaskState.completed});
+    });
+  });
+
+  group('QueueTimeFilter.since', () {
+    final now = DateTime(2026, 9, 19, 15, 30);
+
+    test('all → null（不过滤）', () {
+      expect(QueueTimeFilter.all.since(now), isNull);
+    });
+
+    test('today → 本地当日零点；7/30 天 → 对应回溯', () {
+      expect(QueueTimeFilter.today.since(now), DateTime(2026, 9, 19));
+      expect(
+        QueueTimeFilter.last7Days.since(now),
+        DateTime(2026, 9, 12, 15, 30),
+      );
+      expect(
+        QueueTimeFilter.last30Days.since(now),
+        DateTime(2026, 8, 20, 15, 30),
+      );
+    });
+  });
+
+  group('QueueFilter.matches 矩阵', () {
+    final now = DateTime(2026, 9, 19, 15, 30);
+
+    test('相册维度：命中与不命中', () async {
+      final inAlbum =
+          await seedTask(albumId: 'alb-1', createdAt: now);
+      final other =
+          await seedTask(albumId: 'alb-2', createdAt: now);
+      final filter =
+          const QueueFilter(albumId: 'alb-1');
+
+      expect(filter.matches(inAlbum, now: now), isTrue);
+      expect(filter.matches(other, now: now), isFalse);
+    });
+
+    test('状态维度：failed 组命中组内两态、排除组外', () async {
+      final prep = await seedTask(
+        state: UploadTaskState.preparationFailed,
+        createdAt: now,
+      );
+      final upload = await seedTask(
+        state: UploadTaskState.retryableFailed,
+        createdAt: now,
+      );
+      final waiting = await seedTask(
+        state: UploadTaskState.waitingNetwork,
+        createdAt: now,
+      );
+      final filter = const QueueFilter(
+        state: QueueStateFilter.failed,
+      );
+
+      expect(filter.matches(prep, now: now), isTrue);
+      expect(filter.matches(upload, now: now), isTrue);
+      expect(filter.matches(waiting, now: now), isFalse);
+    });
+
+    test('时间维度：cutoff 恰好含、早一毫秒不含（本地→UTC 归一）',
+        () async {
+      final edge = await seedTask(
+        createdAt: DateTime(2026, 9, 19, 0, 0), // = today cutoff
+      );
+      final before = await seedTask(
+        createdAt:
+            DateTime(2026, 9, 18, 23, 59, 59, 999),
+      );
+      final filter = const QueueFilter(
+        time: QueueTimeFilter.today,
+      );
+
+      expect(filter.matches(edge, now: now), isTrue);
+      expect(filter.matches(before, now: now), isFalse);
+    });
+
+    test('today 匹配 UTC 落库 createdAt（跨时区比较归一）', () async {
+      // UTC 落库时刻（本地 9/19 当日内）——create 落库即 UTC。
+      final task = await seedTask(
+        createdAt: DateTime.utc(2026, 9, 19, 2, 30),
+      );
+      const filter =
+          QueueFilter(time: QueueTimeFilter.today);
+
+      expect(filter.matches(task, now: now), isTrue);
+    });
+
+    test('三维叠加：全部命中才匹配', () async {
+      final hit = await seedTask(
+        albumId: 'alb-1',
+        state: UploadTaskState.retryableFailed,
+        createdAt: DateTime(2026, 9, 19, 10, 0),
+      );
+      final wrongAlbum = await seedTask(
+        albumId: 'alb-2',
+        state: UploadTaskState.retryableFailed,
+        createdAt: DateTime(2026, 9, 19, 10, 0),
+      );
+      final wrongState = await seedTask(
+        albumId: 'alb-1',
+        state: UploadTaskState.queued,
+        createdAt: DateTime(2026, 9, 19, 10, 0),
+      );
+      final tooOld = await seedTask(
+        albumId: 'alb-1',
+        state: UploadTaskState.retryableFailed,
+        createdAt: DateTime(2026, 8, 1),
+      );
+      const filter = QueueFilter(
+        albumId: 'alb-1',
+        state: QueueStateFilter.failed,
+        time: QueueTimeFilter.last30Days,
+      );
+
+      expect(filter.matches(hit, now: now), isTrue);
+      expect(filter.matches(wrongAlbum, now: now), isFalse);
+      expect(filter.matches(wrongState, now: now), isFalse);
+      expect(filter.matches(tooOld, now: now), isFalse);
+    });
+  });
+
+  group('QueueFilter.copyWith / 计数汇总', () {
+    test('copyWith 覆盖与 clearAlbum 显式清空', () {
+      const base = QueueFilter(albumId: 'alb-1');
+      expect(base.copyWith(albumId: 'alb-2').albumId, 'alb-2');
+      expect(base.copyWith(clearAlbum: true).albumId, isNull);
+      // 不传时保持。
+      expect(base.copyWith().albumId, 'alb-1');
+    });
+
+    test('pendingCountOf/failedCountOf 汇总', () {
+      final counts = <UploadTaskState, int>{
+        for (final s in UploadTaskState.values) s: 0,
+      }
+        ..[UploadTaskState.preparing] = 1
+        ..[UploadTaskState.queued] = 2
+        ..[UploadTaskState.uploading] = 3
+        ..[UploadTaskState.uploadedConfirming] = 4
+        ..[UploadTaskState.waitingNetwork] = 5
+        ..[UploadTaskState.preparationFailed] = 6
+        ..[UploadTaskState.retryableFailed] = 7
+        ..[UploadTaskState.completed] = 8
+        ..[UploadTaskState.cancelled] = 9;
+      expect(pendingCountOf(counts), 15);
+      expect(failedCountOf(counts), 13);
+    });
+  });
+}
diff --git a/apps/mobile/test/helpers/fakes.dart b/apps/mobile/test/helpers/fakes.dart
index 154e099..80ef64f 100644
--- a/apps/mobile/test/helpers/fakes.dart
+++ b/apps/mobile/test/helpers/fakes.dart
@@ -9,7 +9,11 @@ import 'dart:async';
 import 'dart:convert';
 
 import 'package:dio/dio.dart';
+import 'package:drift/drift.dart' show driftRuntimeOptions;
+import 'package:photo_live/core/api_client.dart';
 import 'package:photo_live/core/session_store.dart';
+import 'package:photo_live/features/uploads/providers.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
 
 /// 内存会话存储（测试替身）。
 class FakeSessionStore implements SessionStore {
@@ -25,6 +29,32 @@ class FakeSessionStore implements SessionStore {
   Future<void> clear() async => session = null;
 }
 
+/// Widget 测试通用 overrides（P3 Task 9 起，登录页/主壳会触达
+/// sessionAccountProvider 与任务库 Provider——真实 flutter_secure_storage
+/// 与 path_provider 的平台通道在测试环境挂起，凡 pump 到相关页面均需
+/// 注入替身）。
+///
+/// 返回 [FakeSessionStore] + 内存 [TaskStore] + 可选 FakeAdapter ApiClient
+/// 的 override 列表。Riverpod 3 已不公开 `Override` 类型（无法作签名注解），
+/// 故元素类型为 dynamic——调用点以 spread 展开进 ProviderScope.overrides
+/// （元素真实类型即 Override，展开本身类型安全）：
+/// `ProviderScope(overrides: [...pageTestOverrides(...), 其他], ...)`。
+List<dynamic> pageTestOverrides({
+  FakeSessionStore? session,
+  TaskStore? taskStore,
+  ApiClient? client,
+}) {
+  // 每个测试各自 new 一块内存库（独立 QueryExecutor，随容器销毁），
+  // drift 的“多实例同执行器”告警在此是误报——测试输出降噪。
+  driftRuntimeOptions.dontWarnAboutMultipleDatabases = true;
+  final store = taskStore ?? TaskStore.memory();
+  return <dynamic>[
+    if (session != null) sessionStoreProvider.overrideWithValue(session),
+    taskStoreProvider.overrideWithValue(store),
+    if (client != null) apiClientProvider.overrideWith((ref) => client),
+  ];
+}
+
 /// 记录到适配器的请求快照。
 class RecordedRequest {
   const RecordedRequest({
diff --git a/apps/mobile/test/pages/album_detail_page_test.dart b/apps/mobile/test/pages/album_detail_page_test.dart
index cb0ee4b..f25d0d5 100644
--- a/apps/mobile/test/pages/album_detail_page_test.dart
+++ b/apps/mobile/test/pages/album_detail_page_test.dart
@@ -4,16 +4,31 @@
 /// 分类管理三流（新增对话框载荷、名称空校验拦截、编辑 PATCH、删除确认）。
 library;
 
+import 'dart:io';
+
+import 'package:camera/camera.dart' show XFile;
 import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:photo_live/core/api_client.dart';
+import 'package:photo_live/core/notification_permission.dart';
+import 'package:photo_live/core/session_store.dart';
+import 'package:photo_live/features/uploads/enqueue.dart';
+import 'package:photo_live/features/uploads/preparer.dart';
+import 'package:photo_live/features/uploads/providers.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
 import 'package:photo_live/l10n/app_localizations.dart';
 import 'package:photo_live/pages/album_detail_page.dart';
+import 'package:photo_live/pages/capture_page.dart';
 
 import '../helpers/fakes.dart';
 
+/// JPEG 魔数最小字节（入队准备器真实文件驱动）。
+const List<int> kJpgBytes = <int>[
+  0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00,
+];
+
 void main() {
   late FakeSessionStore store;
   late List<Map<String, dynamic>> categories;
@@ -55,7 +70,11 @@ void main() {
   Future<void> pumpDetail(WidgetTester tester, ApiClient client) async {
     await tester.pumpWidget(
       ProviderScope(
-        overrides: [apiClientProvider.overrideWith((ref) => client)],
+        // Task 9 起详情页有上传 FAB（触达 sessionAccountProvider），
+        // 真实平台通道在测试环境挂起，必须注入替身。
+        overrides: [
+          ...pageTestOverrides(session: store, client: client),
+        ],
         child: MaterialApp(
           localizationsDelegates: AppLocalizations.localizationsDelegates,
           supportedLocales: AppLocalizations.supportedLocales,
@@ -79,7 +98,8 @@ void main() {
     );
     expect(find.text('sharetoken000000000001'), findsOneWidget);
     expect(find.text('大宴会厅'), findsOneWidget);
-    expect(find.text('Upload'), findsOneWidget);
+    // 「Upload」出现两次：开关标签 chip + Task 9 上传 FAB 文案。
+    expect(find.text('Upload'), findsNWidgets(2));
     expect(find.text('Original'), findsOneWidget);
     // 动作行（5 项）。
     expect(find.text('Edit'), findsOneWidget);
@@ -266,4 +286,131 @@ void main() {
     expect(find.text('仪式 · Ceremony'), findsNothing);
     expect(find.text('No categories yet. Tap + to add one'), findsOneWidget);
   });
+
+  group('上传入口 FAB（Task 9）', () {
+    late Directory tmp;
+    late List<String> galleryPaths;
+    late TaskStore taskStore;
+
+    setUp(() async {
+      store.session = Session(
+        token: 'tok-1',
+        expiresAt: DateTime.utc(2099, 1, 1),
+        account: 'alice',
+      );
+      tmp = await Directory.systemTemp.createTemp('detail-upload-');
+      galleryPaths = <String>[];
+      taskStore = TaskStore.memory();
+    });
+
+    tearDown(() async {
+      await taskStore.close();
+      await tmp.delete(recursive: true);
+    });
+
+    /// 详情页 + 上传链路替身（内存任务库/临时目录准备器/多选替身/
+    /// 非平台相机源）。
+    Future<void> pumpDetailForUpload(WidgetTester tester) async {
+      final adapter = detailAdapter();
+      await tester.pumpWidget(
+        ProviderScope(
+          overrides: [
+            ...pageTestOverrides(
+              session: store,
+              taskStore: taskStore,
+              client: clientOf(adapter),
+            ),
+            multiImagePickerProvider
+                .overrideWith((ref) => () async => galleryPaths),
+            uploadPreparerProvider.overrideWith(
+              (ref) => UploadPreparer(
+                taskStore,
+                baseDirProvider: () async => tmp,
+              ),
+            ),
+            notificationPermissionProvider.overrideWith(
+              (ref) => NotificationPermission(isAndroid: false),
+            ),
+            captureSourceFactoryProvider
+                .overrideWith((ref) => () async => _StaticCaptureSource()),
+          ],
+          child: MaterialApp(
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: const AlbumDetailPage(albumId: 'alb-1'),
+          ),
+        ),
+      );
+      await tester.pumpAndSettle();
+    }
+
+    testWidgets('FAB → 底部弹层双入口（拍照上传 / 从相册选择）', (tester) async {
+      await pumpDetailForUpload(tester);
+
+      await tester.tap(find.byType(FloatingActionButton));
+      await tester.pumpAndSettle();
+
+      expect(find.text('Capture and upload'), findsOneWidget);
+      expect(find.text('Pick from gallery'), findsOneWidget);
+    });
+
+    testWidgets('拍照上传 → 进入连拍页（目标相册带出）', (tester) async {
+      await pumpDetailForUpload(tester);
+
+      await tester.tap(find.byType(FloatingActionButton));
+      await tester.pumpAndSettle();
+      await tester.tap(find.text('Capture and upload'));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(CapturePage), findsOneWidget);
+      // 连拍页常驻信息层显示目标相册名（与详情标题同源：默认 zh 主标题）。
+      expect(
+        find.descendant(
+          of: find.byType(CapturePage),
+          matching: find.text('开幕晚宴'),
+        ),
+        findsOneWidget,
+      );
+    });
+
+    testWidgets('从相册选择 → 多选入队 + 入队数提示', (tester) async {
+      final pick1 = File('${tmp.path}/pick1.jpg')..writeAsBytesSync(kJpgBytes);
+      final pick2 = File('${tmp.path}/pick2.jpg')..writeAsBytesSync(kJpgBytes);
+      galleryPaths.addAll([pick1.path, pick2.path]);
+      await pumpDetailForUpload(tester);
+
+      await tester.tap(find.byType(FloatingActionButton));
+      await tester.pumpAndSettle();
+      // 入队链路含真实文件 IO：真实事件循环内触发行内动作。
+      final tile = find.widgetWithText(ListTile, 'Pick from gallery');
+      await tester.runAsync(() async {
+        (tile.evaluate().single.widget as ListTile).onTap!();
+        await Future<void>.delayed(const Duration(milliseconds: 300));
+      });
+      await tester.pumpAndSettle();
+
+      expect(
+        find.text('Added 2 photo(s) to the upload queue'),
+        findsOneWidget,
+      );
+      final tasks = await taskStore.listByAccount('alice');
+      expect(tasks, hasLength(2));
+      expect(tasks.every((t) => t.albumId == 'alb-1'), isTrue);
+    });
+  });
+}
+
+/// 相机源替身（详情页跳连拍页测试：仅就绪，不拍摄）。
+class _StaticCaptureSource implements CaptureSource {
+  @override
+  Future<void> initialize() async {}
+
+  @override
+  Future<XFile> capture() => throw UnimplementedError();
+
+  @override
+  Widget buildPreview() => const SizedBox();
+
+  @override
+  Future<void> dispose() async {}
 }
diff --git a/apps/mobile/test/pages/capture_page_test.dart b/apps/mobile/test/pages/capture_page_test.dart
new file mode 100644
index 0000000..13c2c44
--- /dev/null
+++ b/apps/mobile/test/pages/capture_page_test.dart
@@ -0,0 +1,336 @@
+/// 连拍页 widget 测试（P3 计划 Task 9，R17 连拍入队 / O01 现场反馈）。
+///
+/// 打桩面：FakeCaptureSource（capture 返回真实 JPEG 临时文件，无相机
+/// 平台通道）+ 内存 TaskStore + 临时目录准备器 + 非 Android 权限门替身
+/// （静默跳过通道）。覆盖：快门即拍即入队、连拍串行、分类切换仅影响
+/// 之后拍摄、多选补充入队、待传/失败徽章实时刷新、有待传任务退出确认、
+/// 权限拒绝/初始化失败视图与重试。
+library;
+
+import 'dart:io';
+
+import 'package:camera/camera.dart' show CameraException, XFile;
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:photo_live/core/api_client.dart';
+import 'package:photo_live/core/notification_permission.dart';
+import 'package:photo_live/core/session_store.dart';
+import 'package:photo_live/features/albums/models.dart';
+import 'package:photo_live/features/uploads/enqueue.dart';
+import 'package:photo_live/features/uploads/preparer.dart';
+import 'package:photo_live/features/uploads/providers.dart';
+import 'package:photo_live/features/uploads/queue_controller.dart';
+import 'package:photo_live/features/uploads/task_state.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
+import 'package:photo_live/l10n/app_localizations.dart';
+import 'package:photo_live/pages/capture_page.dart';
+
+import '../helpers/fakes.dart';
+
+const List<int> kJpgBytes = <int>[
+  0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00,
+];
+
+/// 拍摄源替身：capture 依次弹出预置文件；initialize 可注入失败次数。
+class FakeCaptureSource implements CaptureSource {
+  FakeCaptureSource(this._files);
+
+  final List<File> _files;
+  int initializeCalls = 0;
+  int failNextInits = 0;
+  Object? initError;
+
+  @override
+  Future<void> initialize() async {
+    initializeCalls++;
+    if (failNextInits > 0) {
+      failNextInits--;
+      throw initError ?? StateError('init failed');
+    }
+  }
+
+  @override
+  Future<XFile> capture() async => XFile(_files.removeAt(0).path);
+
+  @override
+  Widget buildPreview() => const ColoredBox(
+        color: Color(0xFF101010),
+        child: Center(child: Text('PREVIEW_MARK')),
+      );
+
+  @override
+  Future<void> dispose() async {}
+}
+
+void main() {
+  late FakeSessionStore session;
+  late TaskStore store;
+  late Directory tmp;
+  late FakeCaptureSource source;
+  late List<String> galleryPaths;
+
+  final categories = <Category>[
+    const Category(
+      id: 'cat-1',
+      albumId: 'alb-1',
+      sortOrder: 0,
+      translations: [
+        CategoryTranslation(locale: 'zh-CN', name: '仪式'),
+        CategoryTranslation(locale: 'en', name: 'Ceremony'),
+      ],
+    ),
+    const Category(
+      id: 'cat-2',
+      albumId: 'alb-1',
+      sortOrder: 1,
+      translations: [
+        CategoryTranslation(locale: 'zh-CN', name: '晚宴'),
+        CategoryTranslation(locale: 'en', name: 'Gala'),
+      ],
+    ),
+  ];
+
+  setUp(() async {
+    session = FakeSessionStore()
+      ..session = Session(
+        token: 'tok-1',
+        expiresAt: DateTime.utc(2099, 1, 1),
+        account: 'alice',
+      );
+    store = TaskStore.memory();
+    tmp = await Directory.systemTemp.createTemp('capture-test-');
+    final shot1 = File('${tmp.path}/IMG_0001.jpg')..writeAsBytesSync(kJpgBytes);
+    final shot2 = File('${tmp.path}/IMG_0002.jpg')..writeAsBytesSync(kJpgBytes);
+    final shot3 = File('${tmp.path}/IMG_0003.jpg')..writeAsBytesSync(kJpgBytes);
+    source = FakeCaptureSource([shot1, shot2, shot3]);
+    galleryPaths = <String>[];
+  });
+
+  tearDown(() async {
+    await store.close();
+    await tmp.delete(recursive: true);
+  });
+
+  CaptureTarget target() => CaptureTarget(
+        accountId: 'alice',
+        albumId: 'alb-1',
+        albumTitle: 'Opening Gala',
+        categories: categories,
+      );
+
+  Future<void> pumpCapture(WidgetTester tester) async {
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          ...pageTestOverrides(
+            session: session,
+            taskStore: store,
+            client: ApiClient(
+              sessionStore: session,
+              dio: Dio(BaseOptions(baseUrl: 'http://test.local'))
+                ..httpClientAdapter = FakeAdapter(
+                    (_) => throw StateError('连拍页不应发起 API 请求')),
+            ),
+          ),
+          captureSourceFactoryProvider
+              .overrideWith((ref) => () async => source),
+          uploadPreparerProvider.overrideWith(
+            (ref) => UploadPreparer(
+              store,
+              baseDirProvider: () async => tmp,
+            ),
+          ),
+          notificationPermissionProvider.overrideWith(
+            (ref) => NotificationPermission(isAndroid: false),
+          ),
+          multiImagePickerProvider
+              .overrideWith((ref) => () async => galleryPaths),
+        ],
+        child: MaterialApp(
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: CapturePage(target: target()),
+        ),
+      ),
+    );
+    // 相机初始化完成：帧级 pump 直至预览出现（首个测试字体/主题冷启动
+    // 较慢，固定双 pump 不够稳）。
+    await tester.pump();
+    var guard = 0;
+    while (find.text('PREVIEW_MARK').evaluate().isEmpty && guard++ < 20) {
+      await tester.pump(const Duration(milliseconds: 50));
+    }
+  }
+
+  /// 触发一个会走真实文件 IO 的按钮：在 runAsync（真实事件循环）内直接
+  /// 调用其回调——widget 测试的 fake-async 区里 dart:io 完成回调不会被
+  /// pump 冲刷，入队链路必须整体跑在真实区；返回后 pump 刷新徽章防抖。
+  Future<void> pressRealIo(WidgetTester tester, IconData icon) async {
+    final button = find
+        .ancestor(of: find.byIcon(icon), matching: find.byType(IconButton))
+        .evaluate()
+        .single
+        .widget as IconButton;
+    await tester.runAsync(() async {
+      button.onPressed!();
+      await Future<void>.delayed(const Duration(milliseconds: 300));
+    });
+    await tester.pump(kQueueRefreshDebounce);
+    await tester.pump(const Duration(milliseconds: 60));
+  }
+
+  /// 快门（即拍即入队链路经 [pressRealIo]）。
+  Future<void> shoot(WidgetTester tester, {int times = 1}) async {
+    for (var i = 0; i < times; i++) {
+      await pressRealIo(tester, Icons.camera);
+    }
+  }
+
+  testWidgets('快门即拍即入队：任务落库 queued + 待传徽章 1', (tester) async {
+    await pumpCapture(tester);
+    expect(find.text('PREVIEW_MARK'), findsOneWidget, reason: '相机预览就绪');
+    expect(find.text('Pending 0'), findsOneWidget);
+
+    await shoot(tester);
+
+    final tasks = await store.listByAccount('alice');
+    expect(tasks, hasLength(1));
+    expect(tasks.single.state, UploadTaskState.queued);
+    expect(tasks.single.accountId, 'alice');
+    expect(tasks.single.albumId, 'alb-1');
+    expect(tasks.single.categoryId, isNull, reason: '默认分类');
+    expect(tasks.single.filename, 'IMG_0001.jpg');
+    expect(find.text('Pending 1'), findsOneWidget, reason: '徽章实时刷新');
+  });
+
+  testWidgets('连拍两张串行入队（不逐张确认）', (tester) async {
+    await pumpCapture(tester);
+
+    await shoot(tester, times: 2);
+
+    final tasks = await store.listByAccount('alice');
+    expect(tasks.map((t) => t.filename), unorderedEquals(<String>[
+      'IMG_0001.jpg',
+      'IMG_0002.jpg',
+    ]));
+    expect(find.text('Pending 2'), findsOneWidget);
+  });
+
+  testWidgets('分类切换：hint 提示 + 仅影响之后拍摄（A15 归属不变）',
+      (tester) async {
+    await pumpCapture(tester);
+    await shoot(tester); // 第一张：默认分类。
+
+    await tester.tap(find.text('Gala'));
+    await tester.pump();
+    expect(
+      find.text('Switching only affects photos captured afterwards'),
+      findsOneWidget,
+      reason: '切换归属不变提示',
+    );
+    await tester.pumpAndSettle(); // snackbar 退场。
+
+    await shoot(tester); // 第二张：新分类。
+
+    final tasks = await store.listByAccount('alice');
+    final first =
+        tasks.firstWhere((t) => t.filename == 'IMG_0001.jpg');
+    final second =
+        tasks.firstWhere((t) => t.filename == 'IMG_0002.jpg');
+    expect(first.categoryId, isNull, reason: '既有任务归属不变');
+    expect(second.categoryId, 'cat-2', reason: '切换后拍摄走新分类');
+  });
+
+  testWidgets('相册多选补充入队 → 入队数提示', (tester) async {
+    final pick1 = File('${tmp.path}/pick1.jpg')..writeAsBytesSync(kJpgBytes);
+    final pick2 = File('${tmp.path}/pick2.jpg')..writeAsBytesSync(kJpgBytes);
+    galleryPaths.addAll([pick1.path, pick2.path]);
+    await pumpCapture(tester);
+
+    // 多选入队走真实文件 IO（同快门路径）。
+    await pressRealIo(tester, Icons.photo_library_outlined);
+    await tester.pump(const Duration(milliseconds: 100));
+
+    expect(find.text('Added 2 photo(s) to the upload queue'), findsOneWidget);
+    expect(await store.listByAccount('alice'), hasLength(2));
+  });
+
+  testWidgets('退出确认：有待传任务 → 弹确认；保留继续拍 / 确认才退出',
+      (tester) async {
+    await pumpCapture(tester);
+    expect(find.byType(CapturePage), findsOneWidget);
+
+    await shoot(tester);
+
+    // home 路由无返回按钮——经 Navigator.maybePop 驱动系统返回路径
+    //（PopScope.canPop=false → onPopInvokedWithResult 弹确认）。
+    Future<void> requestBack() async {
+      final navigator = tester.state<NavigatorState>(
+        find.byType(Navigator).first,
+      );
+      await navigator.maybePop();
+      await tester.pumpAndSettle();
+    }
+
+    // 有待传 → 弹确认。
+    await requestBack();
+    expect(find.text('Leave shooting?'), findsOneWidget);
+    expect(
+      find.textContaining('still uploading'),
+      findsOneWidget,
+      reason: '正文含待传数与后台继续说明',
+    );
+
+    // 保留继续拍 → 不退出。
+    await tester.tap(find.text('Keep shooting'));
+    await tester.pumpAndSettle();
+    expect(find.byType(CapturePage), findsOneWidget);
+
+    // 再次退出 → 确认离开 → 出栈。
+    await requestBack();
+    await tester.tap(find.text('Leave'));
+    await tester.pumpAndSettle();
+    expect(find.byType(CapturePage), findsNothing);
+  });
+
+  testWidgets('权限拒绝视图：文案 + 重试入口', (tester) async {
+    source.initError = CameraException('CameraAccessDenied', 'denied');
+    source.failNextInits = 1;
+    await pumpCapture(tester);
+
+    expect(
+      find.text(
+          'Camera unavailable. Allow camera access in system settings'),
+      findsOneWidget,
+    );
+    // 重试成功 → 预览就绪。
+    await tester.tap(find.text('Retry'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 50));
+    expect(find.text('PREVIEW_MARK'), findsOneWidget);
+  });
+
+  testWidgets('初始化失败视图：非权限异常文案 + 重试恢复', (tester) async {
+    source.failNextInits = 1;
+    source.initError = StateError('camera broken');
+    await pumpCapture(tester);
+
+    expect(find.text('Camera failed to initialize'), findsOneWidget);
+
+    await tester.tap(find.text('Retry'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 50));
+    expect(find.text('PREVIEW_MARK'), findsOneWidget);
+  });
+
+  testWidgets('常驻信息层：相册名 + 分类候选', (tester) async {
+    await pumpCapture(tester);
+
+    expect(find.text('Opening Gala'), findsOneWidget);
+    expect(find.text('Default category'), findsOneWidget);
+    expect(find.text('Ceremony'), findsOneWidget);
+    expect(find.text('Gala'), findsOneWidget);
+  });
+}
diff --git a/apps/mobile/test/pages/login_page_test.dart b/apps/mobile/test/pages/login_page_test.dart
index d012dff..7cccd4e 100644
--- a/apps/mobile/test/pages/login_page_test.dart
+++ b/apps/mobile/test/pages/login_page_test.dart
@@ -37,7 +37,11 @@ void main() {
   Future<void> pumpLoginPage(WidgetTester tester, ApiClient client) async {
     await tester.pumpWidget(
       ProviderScope(
-        overrides: [apiClientProvider.overrideWith((ref) => client)],
+        // Task 9 起登录成功会刷新 sessionAccountProvider——真实
+        // flutter_secure_storage 平台通道在测试环境挂起，必须注入替身。
+        overrides: [
+          ...pageTestOverrides(session: store, client: client),
+        ],
         child: MaterialApp(
           localizationsDelegates: AppLocalizations.localizationsDelegates,
           supportedLocales: AppLocalizations.supportedLocales,
diff --git a/apps/mobile/test/pages/queue_tab_test.dart b/apps/mobile/test/pages/queue_tab_test.dart
new file mode 100644
index 0000000..f1335a9
--- /dev/null
+++ b/apps/mobile/test/pages/queue_tab_test.dart
@@ -0,0 +1,546 @@
+/// 上传队列页 widget 测试（P3 计划 Task 9，需求 4.3）。
+///
+/// 打桩面：RecordingEngine（记录 retryNow/cancel，不出队）+ 内存 TaskStore
+/// 种子 + FakeAdapter 相册列表 + 临时目录准备器（准备失败重试换源）。
+/// 覆盖：任务行渲染（状态徽章/错误文案/相册名）、三维筛选交互、按状态
+/// 动作（重试/取消/删除）、批量重试条、写通知防抖实时刷新、行级进度条。
+library;
+
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:photo_live/core/api_client.dart';
+import 'package:photo_live/core/device_id.dart';
+import 'package:photo_live/core/session_store.dart';
+import 'package:photo_live/features/uploads/enqueue.dart';
+import 'package:photo_live/features/uploads/preparer.dart';
+import 'package:photo_live/features/uploads/providers.dart';
+import 'package:photo_live/features/uploads/queue_controller.dart';
+import 'package:photo_live/features/uploads/task_state.dart';
+import 'package:photo_live/features/uploads/task_store.dart';
+import 'package:photo_live/features/uploads/upload_engine.dart';
+import 'package:photo_live/l10n/app_localizations.dart';
+import 'package:photo_live/pages/queue_tab.dart';
+
+import '../helpers/fakes.dart';
+
+/// JPEG 魔数（准备器换源重试用真实临时文件）。
+const List<int> kJpgBytes = <int>[
+  0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00,
+];
+
+class _FixedDeviceIdStore implements DeviceIdStore {
+  @override
+  Future<String?> read() async => '0123456789abcdef0123456789abcdef';
+  @override
+  Future<void> write(String value) async {}
+}
+
+/// 引擎替身：记录 retryNow/cancel，不出队（动作流断言点；真实出队语义
+/// 由 upload_engine_test 覆盖）。
+class RecordingEngine extends UploadEngine {
+  RecordingEngine(
+    super.store,
+    super.api,
+    super.deviceId, {
+    required Dio objectDio,
+  }) : super(objectDio: objectDio);
+
+  final List<(String, String)> retryCalls = <(String, String)>[];
+  final List<(String, String)> cancelCalls = <(String, String)>[];
+
+  @override
+  Future<void> retryNow(String accountId, String taskId) async =>
+      retryCalls.add((accountId, taskId));
+
+  @override
+  Future<bool> cancel(String accountId, String taskId) async {
+    cancelCalls.add((accountId, taskId));
+    return true;
+  }
+
+  @override
+  void notifyWorkAvailable() {}
+}
+
+void main() {
+  late FakeSessionStore session;
+  late TaskStore store;
+  late RecordingEngine engine;
+  late ApiClient api;
+  late Directory tmp;
+  late List<String> pickedPaths;
+
+  setUp(() async {
+    session = FakeSessionStore()
+      ..session = Session(
+        token: 'tok-1',
+        expiresAt: DateTime.utc(2099, 1, 1),
+        account: 'alice',
+      );
+    store = TaskStore.memory();
+    api = ApiClient(
+      sessionStore: session,
+      dio: Dio(BaseOptions(baseUrl: 'http://test.local'))
+        ..httpClientAdapter = FakeAdapter((o) {
+          if (o.method == 'GET' && o.path == '/v1/albums') {
+            return (
+              200,
+              cursorPageBody(<Map<String, dynamic>>[
+                albumJson(id: 'alb-1'),
+                albumJson(
+                  id: 'alb-2',
+                  translations: <Map<String, dynamic>>[
+                    <String, dynamic>{
+                      'locale': 'en',
+                      'title': 'Wedding Day',
+                      'description': null,
+                      'venue': null,
+                      'address': null,
+                    },
+                  ],
+                ),
+              ]),
+            );
+          }
+          throw StateError('unexpected ${o.method} ${o.path}');
+        }),
+    );
+    engine = RecordingEngine(
+      store,
+      api,
+      DeviceId(store: _FixedDeviceIdStore()),
+      objectDio: Dio()
+        ..httpClientAdapter =
+            FakeAdapter((_) => throw StateError('替身引擎不应发起传输')),
+    );
+    tmp = await Directory.systemTemp.createTemp('queue-tab-test-');
+    pickedPaths = <String>[];
+  });
+
+  tearDown(() async {
+    await store.close();
+    await tmp.delete(recursive: true);
+  });
+
+  Future<void> pumpQueue(WidgetTester tester) async {
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          ...pageTestOverrides(session: session, taskStore: store, client: api),
+          uploadEngineProvider.overrideWith((ref) => engine),
+          uploadPreparerProvider.overrideWith(
+            (ref) => UploadPreparer(
+              store,
+              baseDirProvider: () async => tmp,
+            ),
+          ),
+          singleImagePickerProvider
+              .overrideWith((ref) => () async => pickedPaths.removeAt(0)),
+        ],
+        child: const MaterialApp(
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: QueueTab(),
+        ),
+      ),
+    );
+    // 不用 pumpAndSettle：uploading 行的不确定态进度条永远动画（帧不断）。
+    await tester.pump(const Duration(milliseconds: 300));
+    await tester.pump(const Duration(milliseconds: 300));
+  }
+
+  /// 种子任务（真实迁移链到目标态；attempt/lastError 供失败文案断言）。
+  Future<UploadTask> seed(
+    String filename, {
+    String albumId = 'alb-1',
+    UploadTaskState state = UploadTaskState.queued,
+    DateTime? createdAt,
+    String? lastError,
+    int? attempt,
+  }) async {
+    final id = 'task-$filename';
+    var task = await store.create(
+      UploadTaskDraft(
+        id: id,
+        accountId: 'alice',
+        albumId: albumId,
+        clientTaskId: 'ct-$filename',
+        sourceFilePath: '${tmp.path}/$filename',
+        filename: filename,
+        bytes: 16,
+        contentType: 'image/jpeg',
+      ),
+      now: createdAt,
+    );
+    Future<UploadTask> to(UploadTaskState s,
+            {String? error, int? tries}) =>
+        store.updateState(
+          task.id,
+          s,
+          patch: UploadTaskPatch(lastError: error, attempt: tries),
+          now: createdAt,
+        );
+    switch (state) {
+      case UploadTaskState.preparing:
+        break;
+      case UploadTaskState.queued:
+      case UploadTaskState.preparationFailed:
+      case UploadTaskState.cancelled:
+        task = await to(state, error: lastError);
+      case UploadTaskState.waitingNetwork:
+        task = await to(UploadTaskState.queued);
+        task = await to(state, error: lastError);
+      case UploadTaskState.uploading:
+      case UploadTaskState.retryableFailed:
+        task = await to(UploadTaskState.queued);
+        task = await to(UploadTaskState.uploading);
+        if (state == UploadTaskState.retryableFailed) {
+          task = await to(state, error: lastError, tries: attempt);
+        }
+      case UploadTaskState.uploadedConfirming:
+      case UploadTaskState.completed:
+        task = await to(UploadTaskState.queued);
+        task = await to(UploadTaskState.uploading);
+        task = await to(UploadTaskState.uploadedConfirming);
+        if (state == UploadTaskState.completed) {
+          task = await to(state);
+        }
+    }
+    return task;
+  }
+
+  /// 等防抖重查落定（写通知 → 200ms Timer → 异步查询；不 pumpAndSettle——
+  /// uploading 行的不确定态进度条动画不会停）。
+  Future<void> settleDebounce(WidgetTester tester) async {
+    await tester.pump(kQueueRefreshDebounce);
+    await tester.pump(const Duration(milliseconds: 120));
+  }
+
+  testWidgets('各状态任务行：徽章文案 + 相册名（缓存）+ 缩略图占位',
+      (tester) async {
+    await seed('prep.jpg', state: UploadTaskState.preparing);
+    await seed('ok.jpg', state: UploadTaskState.completed);
+    await seed('net.jpg', state: UploadTaskState.waitingNetwork);
+    await seed('alb2.jpg',
+        albumId: 'alb-2', state: UploadTaskState.uploading);
+    await pumpQueue(tester);
+
+    // 状态徽章（en locale；断言锚定在行内——chip 栏文案与部分徽章同名）。
+    expect(
+      find
+          .descendant(
+            of: find.widgetWithText(ListTile, 'prep.jpg'),
+            matching: find.text('Preparing'),
+          )
+          .evaluate(),
+      isNotEmpty,
+    );
+    expect(
+      find
+          .descendant(
+            of: find.widgetWithText(ListTile, 'ok.jpg'),
+            matching: find.text('Completed'),
+          )
+          .evaluate(),
+      isNotEmpty,
+    );
+    expect(
+      find
+          .descendant(
+            of: find.widgetWithText(ListTile, 'net.jpg'),
+            matching: find.text('Waiting for network'),
+          )
+          .evaluate(),
+      isNotEmpty,
+    );
+    expect(
+      find
+          .descendant(
+            of: find.widgetWithText(ListTile, 'alb2.jpg'),
+            matching: find.text('Uploading'),
+          )
+          .evaluate(),
+      isNotEmpty,
+    );
+    // 文件名。
+    expect(find.text('ok.jpg'), findsOneWidget);
+    // 相册名经 albums 缓存展示（en 主标题；3 条 alb-1 + 1 条 alb-2）。
+    expect(find.text('Opening Gala'), findsNWidgets(3));
+    expect(find.text('Wedding Day'), findsOneWidget);
+    // 缩略图：每行一个 Image.file（源缺失走 errorBuilder 占位；fake-async
+    // 下真实 IO 不完成，仅断言 Image 挂载）。
+    expect(find.byType(Image), findsNWidgets(4));
+  });
+
+  testWidgets('失败任务：本地化错误文案 + 尝试次数', (tester) async {
+    await seed(
+      'big.jpg',
+      state: UploadTaskState.preparationFailed,
+      lastError: 'PREP_TOO_LARGE',
+    );
+    await seed(
+      'flaky.jpg',
+      state: UploadTaskState.retryableFailed,
+      lastError: 'NETWORK_ERROR',
+      attempt: 2,
+    );
+    await pumpQueue(tester);
+
+    expect(find.text('Photo exceeds the 50MB limit'), findsOneWidget);
+    expect(
+      find.text('Network error. Check your connection and retry · '
+          '2 attempt(s)'),
+      findsOneWidget,
+    );
+  });
+
+  testWidgets('状态筛选：Failed chip → 仅失败行', (tester) async {
+    await seed('bad.jpg', state: UploadTaskState.preparationFailed);
+    await seed('good.jpg', state: UploadTaskState.completed);
+    await pumpQueue(tester);
+
+    // 状态 chips 行横向滚动——Failed 在屏外，先滚入再点。
+    await tester.ensureVisible(find.text('Failed'));
+    await tester.pumpAndSettle();
+    await tester.tap(find.text('Failed'));
+    await settleDebounce(tester);
+
+    expect(find.text('bad.jpg'), findsOneWidget);
+    expect(find.text('good.jpg'), findsNothing);
+  });
+
+  testWidgets('时间筛选：Today → 昨日任务排除', (tester) async {
+    final now = DateTime.now();
+    await seed('fresh.jpg', createdAt: now);
+    await seed(
+      'old.jpg',
+      createdAt: now.subtract(const Duration(days: 40)),
+    );
+    await pumpQueue(tester);
+    expect(find.text('old.jpg'), findsOneWidget, reason: '默认全部时间');
+
+    await tester.tap(find.text('Today'));
+    await settleDebounce(tester);
+
+    expect(find.text('fresh.jpg'), findsOneWidget);
+    expect(find.text('old.jpg'), findsNothing);
+  });
+
+  testWidgets('相册筛选：下拉选中 alb-2 → 仅该相册行', (tester) async {
+    await seed('one.jpg', albumId: 'alb-1');
+    await seed('two.jpg', albumId: 'alb-2');
+    await pumpQueue(tester);
+
+    await tester.tap(find.text('All albums'));
+    await tester.pumpAndSettle();
+    await tester.tap(find.text('Wedding Day').last);
+    await settleDebounce(tester);
+
+    expect(find.text('two.jpg'), findsOneWidget);
+    expect(find.text('one.jpg'), findsNothing);
+  });
+
+  testWidgets('按状态动作可见性：queued 取消 / completed 删除 / uploading 无',
+      (tester) async {
+    await seed('q.jpg', state: UploadTaskState.queued);
+    await seed('done.jpg', state: UploadTaskState.completed);
+    await seed('up.jpg', state: UploadTaskState.uploading);
+    await pumpQueue(tester);
+
+    // queued 行 → 取消图标；completed 行 → 删除图标；uploading 行无动作。
+    final cancelTile = find.widgetWithText(ListTile, 'q.jpg');
+    final doneTile = find.widgetWithText(ListTile, 'done.jpg');
+    final upTile = find.widgetWithText(ListTile, 'up.jpg');
+    expect(
+      find
+          .descendant(of: cancelTile, matching: find.byIcon(Icons.close))
+          .evaluate()
+          .length,
+      1,
+      reason: 'queued 行有取消按钮',
+    );
+    expect(
+      find
+          .descendant(
+            of: doneTile,
+            matching: find.byIcon(Icons.delete_outline),
+          )
+          .evaluate()
+          .length,
+      1,
+      reason: 'completed 行有删除按钮',
+    );
+    expect(
+      find.descendant(of: upTile, matching: find.byType(IconButton)).evaluate(),
+      isEmpty,
+      reason: 'uploading 行无动作（传输中不打断）',
+    );
+  });
+
+  testWidgets('取消流：queued 行点取消 → engine.cancel(账号, 任务)',
+      (tester) async {
+    final task = await seed('q.jpg');
+    await pumpQueue(tester);
+
+    await tester.tap(find.descendant(
+      of: find.widgetWithText(ListTile, 'q.jpg'),
+      matching: find.byIcon(Icons.close),
+    ));
+    await tester.pumpAndSettle();
+
+    expect(engine.cancelCalls, [('alice', task.id)]);
+  });
+
+  testWidgets('重试流：retryableFailed 行 → engine.retryNow',
+      (tester) async {
+    final task = await seed(
+      'flaky.jpg',
+      state: UploadTaskState.retryableFailed,
+      lastError: 'INTERNAL_ERROR',
+    );
+    await pumpQueue(tester);
+
+    await tester.tap(find.descendant(
+      of: find.widgetWithText(ListTile, 'flaky.jpg'),
+      matching: find.byIcon(Icons.refresh),
+    ));
+    await tester.pumpAndSettle();
+
+    expect(engine.retryCalls, [('alice', task.id)]);
+  });
+
+  testWidgets('准备失败重试：重新选图 → 换源重新入队为 queued',
+      (tester) async {
+    final task = await seed(
+      'broken.jpg',
+      state: UploadTaskState.preparationFailed,
+      lastError: 'PREP_SOURCE_UNREADABLE',
+    );
+    // 替身选图器返回真实 JPEG 临时文件。
+    final picked = File('${tmp.path}/repicked.jpg')
+      ..writeAsBytesSync(kJpgBytes);
+    pickedPaths.add(picked.path);
+    await pumpQueue(tester);
+
+    // 换源复制是真实文件 IO——runAsync 放行真实事件循环完成。
+    await tester.runAsync(() async {
+      await tester.tap(find.descendant(
+        of: find.widgetWithText(ListTile, 'broken.jpg'),
+        matching: find.byIcon(Icons.refresh),
+      ));
+      await Future<void>.delayed(const Duration(milliseconds: 400));
+    });
+    await settleDebounce(tester);
+
+    final updated = await store.get('alice', task.id);
+    expect(updated?.state, UploadTaskState.queued);
+    expect(updated?.lastError, isNull);
+    // 重试换源 = 新源复制进同一受管路径（路径不变、内容替换）。
+    expect(updated?.sourceFilePath, task.sourceFilePath);
+    expect(File(task.sourceFilePath).readAsBytesSync(), kJpgBytes,
+        reason: '受管副本内容已替换为重选文件');
+  });
+
+  testWidgets('删除流：completed 行删除 → 行消失 + 库内清除',
+      (tester) async {
+    final task = await seed('done.jpg', state: UploadTaskState.completed);
+    await pumpQueue(tester);
+
+    await tester.tap(find.descendant(
+      of: find.widgetWithText(ListTile, 'done.jpg'),
+      matching: find.byIcon(Icons.delete_outline),
+    ));
+    await settleDebounce(tester);
+
+    expect(find.text('done.jpg'), findsNothing);
+    expect(await store.get('alice', task.id), isNull);
+  });
+
+  testWidgets('批量重试条：出现条件 + 一键重试全部可自动重试任务',
+      (tester) async {
+    final auto1 = await seed(
+      'f1.jpg',
+      state: UploadTaskState.retryableFailed,
+      lastError: 'INTERNAL_ERROR',
+    );
+    final auto2 = await seed(
+      'f2.jpg',
+      state: UploadTaskState.waitingNetwork,
+      lastError: 'NETWORK_ERROR',
+    );
+    await seed(
+      'f3.jpg',
+      state: UploadTaskState.preparationFailed,
+      lastError: 'PREP_COPY_FAILED',
+    );
+    await pumpQueue(tester);
+
+    // 2 条可自动重试（retryableFailed + waitingNetwork）→ 批量条出现。
+    expect(find.text('Retry all failed'), findsOneWidget);
+    expect(find.text('Failed · 2'), findsOneWidget,
+        reason: '失败计数 = 准备失败 + 上传失败（不含等待网络）');
+
+    await tester.tap(find.text('Retry all failed'));
+    await tester.pumpAndSettle();
+
+    expect(engine.retryCalls, containsAll([
+      ('alice', auto1.id),
+      ('alice', auto2.id),
+    ]));
+    expect(
+      engine.retryCalls.map((c) => c.$2),
+      isNot(contains('task-f3.jpg')),
+      reason: '准备失败需换源重选，不进批量重试',
+    );
+  });
+
+  testWidgets('无失败任务 → 无批量条', (tester) async {
+    await seed('q.jpg');
+    await pumpQueue(tester);
+
+    expect(find.text('Retry all failed'), findsNothing);
+  });
+
+  testWidgets('实时刷新：库内新增任务 → 防抖后列表出现（写通知驱动）',
+      (tester) async {
+    await seed('first.jpg');
+    await pumpQueue(tester);
+    expect(find.text('second.jpg'), findsNothing);
+
+    // 模拟连拍页入队（不经 UI 直接写库）。
+    await seed('second.jpg');
+    await settleDebounce(tester);
+
+    expect(find.text('second.jpg'), findsOneWidget);
+  });
+
+  testWidgets('行级进度：uploading 行订阅进度总线，分数更新',
+      (tester) async {
+    final task = await seed('up.jpg', state: UploadTaskState.uploading);
+    await pumpQueue(tester);
+
+    final context = tester.element(find.byType(QueueTab));
+    final hub = ProviderScope.containerOf(context)
+        .read(uploadProgressHubProvider);
+
+    LinearProgressIndicator indicatorOf() => find
+        .descendant(
+          of: find.widgetWithText(ListTile, 'up.jpg'),
+          matching: find.byType(LinearProgressIndicator),
+        )
+        .evaluate()
+        .single
+        .widget as LinearProgressIndicator;
+
+    expect(indicatorOf().value, isNull, reason: '无事件时不确定态进度条');
+
+    hub.emit(task.id, 50, 100);
+    await tester.pump();
+
+    expect(indicatorOf().value, 0.5, reason: '进度事件行级刷新为 50%');
+  });
+}
diff --git a/apps/mobile/test/pages/settings_tab_test.dart b/apps/mobile/test/pages/settings_tab_test.dart
index f7a1c67..56b22b2 100644
--- a/apps/mobile/test/pages/settings_tab_test.dart
+++ b/apps/mobile/test/pages/settings_tab_test.dart
@@ -38,7 +38,11 @@ void main() {
   Future<void> pumpHome(WidgetTester tester, ApiClient client) async {
     await tester.pumpWidget(
       ProviderScope(
-        overrides: [apiClientProvider.overrideWith((ref) => client)],
+        // Task 9 起主壳含队列页（触达 sessionAccountProvider/TaskStore），
+        // 真实平台通道在测试环境挂起，必须注入替身。
+        overrides: [
+          ...pageTestOverrides(session: store, client: client),
+        ],
         child: MaterialApp(
           localizationsDelegates: AppLocalizations.localizationsDelegates,
           supportedLocales: AppLocalizations.supportedLocales,