feat(app): P0 batch 3 — offline detection with engine pause/resume + UI banner

P0-4 离线感知：
  - connectivity_plus → NetworkAvailability（online/offline/unknown）
  - engine_scope 三重绑定：有账号+有网 → start；任一失去 → stop（在途不中断）
  - 网络恢复 → start + onNetworkRestored（waitingNetwork 即时重试）
  - HomePage 顶部离线黄条（wifi_off + i18n 双语）

P0-5 更正：EXIF 方向已由服务端 sharp .rotate() 自动转正——v2 分析误报

397/397 全绿、analyze 0

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

apps/mobile/lib/core/network_status.dart

@@ -0,0 +1,43 @@
+/// 网络连接状态 Provider（P0-4：离线感知）。
+///
+/// connectivity_plus 监听网络变化 → 全局 Stream → UI/引擎消费：
+/// - **UI**：顶部黄条「当前无网络连接」（HomePage 或全局 Scaffold 叠加）
+/// - **上传引擎**：离线 → 暂停再出队；恢复 → 自动重试
+///
+/// 三档：online / offline / unknown（初始/权限不足）。
+/// offline 只暂停再出队，**不中断在途传输**——避免假离线（VPN 等）打断上传。
+library;
+
+import 'package:connectivity_plus/connectivity_plus.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+/// 网络可用性（三档）。
+enum NetworkAvailability { online, offline, unknown }
+
+/// 网络状态 Provider（StreamProvider——connectivity_plus Stream 直通）。
+final networkStatusProvider = StreamProvider<NetworkAvailability>((ref) async* {
+  final connectivity = Connectivity();
+  try {
+    // 初始值（checkConnectivity 是 Future<List<ConnectivityResult>>）。
+    final initial = await connectivity.checkConnectivity();
+    yield _map(initial);
+    // 后续变化（onConnectivityChanged 是 Stream<List<ConnectivityResult>>）。
+    yield* connectivity.onConnectivityChanged.map(_map);
+  } on Object {
+    // 权限不足/平台不支持——报 unknown（不阻塞 App）。
+    yield NetworkAvailability.unknown;
+  }
+});
+
+NetworkAvailability _map(List<ConnectivityResult> results) {
+  if (results.contains(ConnectivityResult.none)) {
+    return NetworkAvailability.offline;
+  }
+  if (results.isEmpty) return NetworkAvailability.unknown;
+  return NetworkAvailability.online;
+}
+
+/// 便捷读取：当前是否有网（unknown 视为有网——假阴性代价低于假阳性）。
+bool isNetworkOnline(NetworkAvailability? status) {
+  return status != NetworkAvailability.offline;
+}

apps/mobile/lib/features/uploads/engine_scope.dart

@@ -15,6 +15,7 @@ library;
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../../core/api_client.dart';
+import '../../core/network_status.dart';
 import 'providers.dart';
 import 'upload_engine.dart';
 
@@ -49,14 +50,29 @@ final sessionAccountProvider =
 
 /// 引擎生命周期绑定：账号在场 → start；离场 → stop（任务保留库内）。
 ///
+/// P0-4 离线感知：**离线 → stop（暂停再出队，在途不受影响）**；
+/// **恢复 → start + onNetworkRestored（立即重试 waitingNetwork）**。
+/// 引擎与账号/网络三重绑定：有账号且有网才出队，任一失去即停。
+///
 /// 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) {
+
+  // P0-4：网络状态（offline 时不出队；unknown 视为有网）。
+  final network = ref.watch(networkStatusProvider).value;
+  final online = isNetworkOnline(network);
+
+  if (account != null && online) {
+    // 恢复在线且已有账号 → start（幂等：已 start 则只刷新 timer）。
     engine.start(account);
+    // 网络从 offline → online 的跃变触发即时重试。
+    if (network == NetworkAvailability.online) {
+      engine.onNetworkRestored();
+    }
   } else {
+    // 离线（或无账号）→ stop（不中断在途；恢复时上面的 start 恢复出队）。
     engine.stop();
   }
   ref.onDispose(engine.stop);

apps/mobile/lib/l10n/app_en.arb

@@ -428,5 +428,6 @@
   "posterSaved": "Poster saved to gallery",
   "posterSaveFailed": "Failed to save poster",
   "close": "Close",
-  "albumUploadDisabled": "Upload is disabled for this album"
+  "albumUploadDisabled": "Upload is disabled for this album",
+  "networkOfflineBanner": "No network. Photos will upload automatically when reconnected."
 }

apps/mobile/lib/l10n/app_localizations.dart

@@ -2023,6 +2023,12 @@ abstract class AppLocalizations {
   /// In zh, this message translates to:
   /// **'该相册已关闭上传，无法添加照片'**
   String get albumUploadDisabled;
+
+  /// No description provided for @networkOfflineBanner.
+  ///
+  /// In zh, this message translates to:
+  /// **'当前无网络连接，照片将在恢复后自动上传'**
+  String get networkOfflineBanner;
 }
 
 class _AppLocalizationsDelegate

apps/mobile/lib/l10n/app_localizations_en.dart

@@ -1034,4 +1034,8 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get albumUploadDisabled => 'Upload is disabled for this album';
+
+  @override
+  String get networkOfflineBanner =>
+      'No network. Photos will upload automatically when reconnected.';
 }

apps/mobile/lib/l10n/app_localizations_zh.dart

@@ -1001,4 +1001,7 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get albumUploadDisabled => '该相册已关闭上传，无法添加照片';
+
+  @override
+  String get networkOfflineBanner => '当前无网络连接，照片将在恢复后自动上传';
 }

apps/mobile/lib/l10n/app_zh.arb

@@ -428,5 +428,6 @@
   "posterSaved": "海报已保存到相册",
   "posterSaveFailed": "海报保存失败",
   "close": "关闭",
-  "albumUploadDisabled": "该相册已关闭上传，无法添加照片"
+  "albumUploadDisabled": "该相册已关闭上传，无法添加照片",
+  "networkOfflineBanner": "当前无网络连接，照片将在恢复后自动上传"
 }

apps/mobile/lib/pages/home_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import '../app/locale_controller.dart';
 import '../core/api_client.dart';
+import '../core/network_status.dart';
 import '../features/albums/providers.dart';
 import '../features/uploads/engine_scope.dart';
 import '../features/uploads/queue_controller.dart';
@@ -38,11 +39,49 @@ class _HomePageState extends ConsumerState<HomePage> {
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context);
     final badgeCount = ref.watch(uploadBadgeCountProvider);
+    // P0-4：离线黄条（网络恢复自动消失）。
+    final network = ref.watch(networkStatusProvider).value;
+    final offline = network == NetworkAvailability.offline;
     return Scaffold(
-      body: IndexedStack(
+      body: Column(
+        children: [
+          if (offline)
+            Material(
+              color: Theme.of(context).colorScheme.tertiaryContainer,
+              child: SizedBox(
+                width: double.infinity,
+                child: Padding(
+                  padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                  child: Row(
+                    children: [
+                      Icon(
+                        Icons.wifi_off_rounded,
+                        size: 16,
+                        color: Theme.of(context).colorScheme.onTertiaryContainer,
+                      ),
+                      const SizedBox(width: 8),
+                      Expanded(
+                        child: Text(
+                          l10n.networkOfflineBanner,
+                          style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                                color:
+                                    Theme.of(context).colorScheme.onTertiaryContainer,
+                              ),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+            ),
+          Expanded(
+            child: IndexedStack(
               index: _selectedIndex,
               children: const [AlbumsTab(), QueueTab(), SettingsTab()],
             ),
+          ),
+        ],
+      ),
       bottomNavigationBar: NavigationBar(
         selectedIndex: _selectedIndex,
         onDestinationSelected: (index) =>

apps/mobile/pubspec.lock

@@ -193,6 +193,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.19.1"
+  connectivity_plus:
+    dependency: "direct main"
+    description:
+      name: connectivity_plus
+      sha256: "762c99f890ca8bf87f7337236f99edd42793843bc6c3631da294a76653a54bd0"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "7.3.1"
+  connectivity_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: connectivity_plus_platform_interface
+      sha256: "3c09627c536d22fd24691a905cdd8b14520de69da52c7a97499c8be5284a32ed"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.1.0"
   convert:
     dependency: transitive
     description:
@@ -225,6 +241,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.1.9"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: a48d5da28e89bd02196e80d81ed8d7954923d00a0f4a68cc20b575038f023383
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.7.15"
   dio:
     dependency: "direct main"
     description:
@@ -716,6 +740,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.19.2"
+  nm:
+    dependency: transitive
+    description:
+      name: nm
+      sha256: "2c9aae4127bdc8993206464fcc063611e0e36e72018696cd9631023a31b24254"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.5.0"
   objective_c:
     dependency: transitive
     description:
@@ -788,6 +820,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.3.0"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "7.0.2"
   platform:
     dependency: transitive
     description:
@@ -1241,6 +1281,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: "67f0aff7be013d107995e9b75bf4e7f2c3ef2dfdb2c8e68024bba0a7fd5756a4"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "7.0.1"
   yaml:
     dependency: transitive
     description:

apps/mobile/pubspec.yaml

@@ -39,6 +39,7 @@ dependencies:
   share_plus: ^13.3.0
   gal: ^2.3.3
   fluwx: ^6.0.2
+  connectivity_plus: ^7.3.1
 
 
 flutter_launcher_icons:

docs/plans/2026-09-28-App上传提速与无限制选图-实施计划.md

@@ -0,0 +1,475 @@
+# App 上传提速与无限制选图 实施计划
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** 提升 App 批量上传吞吐（并发 2→4、准备阶段有界并行、进度回调节流），并用应用内相册选择器（wechat_assets_picker）替换系统照片选择器，解除 100 张上限、支持长按拖动连选与全选。
+
+**Architecture:** 三处提速均为参数/局部改动，不动上传状态机与传输协议；选图替换仅改 `multiImagePickerProvider` 注入点实现 + Android 权限声明，队列/准备器/引擎零改动（Provider 注入架构已就位）。
+
+**Tech Stack:** Flutter/Dart（dio、drift、Riverpod）、Kotlin（WorkManager/OkHttp）、`wechat_assets_picker ^10.1.3`（依赖 `photo_manager ^3.5.0`，要求 Flutter ≥3.27，本项目 Dart ^3.12.2 满足）。
+
+**已确认决策（2026-09-28）：**
+- ① 接受应用内选择器带来的存储权限弹窗（READ_MEDIA_IMAGES）；
+- ② 不做客户端压缩（原图直传保持不变）。
+
+**明确不做（Out of scope）：**
+- 前台快路径传输（前台直连 dio、后台 WorkManager 接管）——待本次并发提升数据出来后再评估；
+- 批量 initUpload 契约扩展；
+- 并发 worker 通知合并（4 并发 = 4 条低优先级通知，可接受，观察后再定）。
+
+---
+
+## 背景（问题 → 根因速查）
+
+| 问题 | 根因 | 证据 |
+|---|---|---|
+| 上传慢 | 并行传输上限=2；准备阶段两层串行；进度回调每 64KB 一次 | `upload_engine.dart:55`、`enqueue.dart:54`、`preparer.dart:117`（`_serialize`）、`UploadPutExecutor.kt:74` |
+| 一次最多 100 张 | Android 系统 Photo Picker 平台上限 `MediaStore.getPickImagesMaxLimit()`（多数设备=100），app/服务端无此限制 | image_picker_android `ImagePickerUtils.getMaxItems()` |
+| 只能逐张点选 | 系统 Photo Picker UI 不支持区间拖选/全选，平台限制无解 | 同上 |
+
+测试基线（Task 6 验证时先采旧包数据）：同批 20 张照片入队+传完的总耗时、入队阶段（全部变 queued）耗时。
+
+---
+
+### Task 1: 传输并发默认值 2 → 4
+
+**Files:**
+- Modify: `apps/mobile/lib/features/uploads/upload_engine.dart:53-56`
+
+说明：dart-define `MAX_PARALLEL_UPLOADS` 覆盖机制保持不变（A/B 实测用）；引擎测试均显式注入 `maxParallel`，不受默认值影响。
+
+- [ ] **Step 1: 修改常量与注释**
+
+```dart
+/// 并行传输上限（计划：批量并发为可配置小值；dart-define
+/// MAX_PARALLEL_UPLOADS 覆盖）。2026-09-28 上传提速：2 → 4
+/// （4G/Wi-Fi 上行可支撑；Android 侧每任务独立 WorkManager 通知，
+/// 并发=通知数，观察后再定是否合并）。
+const int kMaxParallelUploads =
+    int.fromEnvironment('MAX_PARALLEL_UPLOADS', defaultValue: 4);
+```
+
+- [ ] **Step 2: 跑上传相关测试确认不回归**
+
+Run: `cd apps/mobile && flutter test test/features/uploads/`
+Expected: 全部 PASS
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add apps/mobile/lib/features/uploads/upload_engine.dart
+git commit -m "feat(app): raise default upload parallelism 2 -> 4"
+```
+
+---
+
+### Task 2: UploadPreparer 有界并行（默认 3）
+
+**Files:**
+- Modify: `apps/mobile/lib/features/uploads/preparer.dart`
+- Test: `apps/mobile/test/features/uploads/preparer_test.dart`
+
+设计：把 `_tail` 全局串行链改为**有界并发执行器**（信号量 + FIFO 等待队列）。并发默认 3（dart-define `PREPARE_CONCURRENCY` 覆盖），1 = 等价旧行为。防连拍 IO 风暴的初衷保留（上限钳位），只是不再退化为全串行。
+
+- [ ] **Step 1: 写失败测试**（`preparer_test.dart` 追加）
+
+```dart
+test('有界并发：并发 prepare 数不超过 maxConcurrentPrepares 且全部完成', () async {
+  var active = 0;
+  var peak = 0;
+  final store = ... // 按现有测试构造方式（内存 db + tmp 目录）
+  final preparer = UploadPreparer(
+    store,
+    baseDirProvider: () async => tmp,
+    maxConcurrentPrepares: 3,
+    // 用可注入的复制观察：直接跑真实 prepare，统计峰值没有钩子——
+    // 改为构造 9 个任务并发触发，断言全部终态 + 耗时显著小于串行版。
+  );
+  final tasks = await Future.wait(
+    List.generate(9, (i) => preparer.prepare(
+      accountId: 'acc', albumId: 'alb',
+      sourcePath: fixtureJpg.path, // 复用现有测试的 jpg 夹具
+    )),
+  );
+  expect(tasks.every((t) => t.state == UploadTaskState.queued), isTrue);
+});
+```
+
+注：若现有夹具不便统计峰值，验收改为「9 个并发 prepare 全部 queued + 串行对照耗时 > 并行耗时」；峰值断言可通过对 `maxConcurrentPrepares: 1` 的对照行为（同参数 1 时任务仍全部成功）兜底。
+
+- [ ] **Step 2: 跑测试确认失败**
+
+Run: `cd apps/mobile && flutter test test/features/uploads/preparer_test.dart`
+Expected: FAIL（`maxConcurrentPrepares` 参数不存在）
+
+- [ ] **Step 3: 实现（preparer.dart）**
+
+构造函数与常量：
+
+```dart
+/// 准备阶段有界并发上限（dart-define PREPARE_CONCURRENCY 覆盖；1=串行）。
+const int kMaxConcurrentPrepares =
+    int.fromEnvironment('PREPARE_CONCURRENCY', defaultValue: 3);
+```
+
+```dart
+  UploadPreparer(
+    this._store, {
+    Future<Directory> Function()? baseDirProvider,
+    Random? random,
+    this.maxBytes = kMaxUploadBytes,
+    this.maxConcurrentPrepares = kMaxConcurrentPrepares,
+    this.onEnqueued,
+  })  : ... // 其余不变
+
+  /// 准备并发上限（运行时 <1 钳位为 1）。
+  final int maxConcurrentPrepares;
+
+  int get _effectivePrepareConcurrency =>
+      maxConcurrentPrepares < 1 ? 1 : maxConcurrentPrepares;
+```
+
+替换 `_tail` 串行链（删除 `Future<void> _tail` 与旧 `_serialize`）：
+
+```dart
+  /// 在途准备计数 + FIFO 等待队列（有界并发信号量）。
+  int _activePrepares = 0;
+  final Queue<Completer<void>> _prepareWaiters = Queue<Completer<void>>();
+
+  /// 有界并发执行：超额排队（FIFO）；错误由调用方经返回值处理，不设全局断链。
+  Future<T> _runBounded<T>(Future<T> Function() op) {
+    final ticket = _acquirePrepareSlot();
+    final result = ticket.then((_) => op());
+    result.whenComplete(_releasePrepareSlot).ignore();
+    return result;
+  }
+
+  Future<void> _acquirePrepareSlot() {
+    if (_activePrepares < _effectivePrepareConcurrency) {
+      _activePrepares++;
+      return Future<void>.value();
+    }
+    final waiter = Completer<void>();
+    _prepareWaiters.addLast(waiter);
+    return waiter.future;
+  }
+
+  void _releasePrepareSlot() {
+    final waiter = _prepareWaiters.isEmpty
+        ? null
+        : _prepareWaiters.removeFirst();
+    if (waiter == null) {
+      _activePrepares--;
+      return;
+    }
+    // 名额直接移交队首等待者（计数不变）。
+    waiter.complete();
+  }
+```
+
+`prepare`/`retry` 内 `_serialize(...)` 调用点改名为 `_runBounded(...)`（签名同形，两处替换）。`import 'dart:async';` 已有（Completer 需要）；补 `Queue` 需 `import 'dart:collection';`。
+
+同步更新类级 doc 注释：「串行执行」段改为「有界并发执行（默认 3）：文件复制仍是 IO 最重环节，上限钳位防连拍风暴；传输并发由 UploadEngine 另行控制」。
+
+- [ ] **Step 4: 跑测试确认通过**
+
+Run: `cd apps/mobile && flutter test test/features/uploads/preparer_test.dart`
+Expected: 全部 PASS（含既有串行语义测试——显式传 `maxConcurrentPrepares: 1` 的用例如依赖顺序应仍通过；若有用例依赖默认串行顺序，将其构造处补 `maxConcurrentPrepares: 1`）
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add apps/mobile/lib/features/uploads/preparer.dart apps/mobile/test/features/uploads/preparer_test.dart
+git commit -m "feat(app): bounded-parallel prepare (default 3) replaces serial queue"
+```
+
+---
+
+### Task 3: enqueueForUpload 并行收集
+
+**Files:**
+- Modify: `apps/mobile/lib/features/uploads/enqueue.dart:52-63`
+
+说明：Task 2 后 preparer 内部已限流，外层 for-await 循环改为 `Future.wait` 即可；返回值语义（成功入队张数）不变。页级测试（album_detail/capture_page 断言入队数）已覆盖该语义。
+
+- [ ] **Step 1: 替换循环**
+
+```dart
+  final preparer = ref.read(uploadPreparerProvider);
+  final results = await Future.wait(
+    sourcePaths.map((path) => preparer.prepare(
+          accountId: accountId,
+          albumId: albumId,
+          categoryId: categoryId,
+          sourcePath: path,
+        )),
+  );
+  return results
+      .where((task) => task.state == UploadTaskState.queued)
+      .length;
+```
+
+- [ ] **Step 2: 跑页级测试**
+
+Run: `cd apps/mobile && flutter test test/pages/album_detail_page_test.dart test/pages/capture_page_test.dart`
+Expected: 全部 PASS
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add apps/mobile/lib/features/uploads/enqueue.dart
+git commit -m "feat(app): enqueue gallery batch concurrently via Future.wait"
+```
+
+---
+
+### Task 4: 进度回调节流（64KB → 256KB / 完成必报）
+
+**Files:**
+- Modify: `apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/UploadPutExecutor.kt`
+- Modify: `apps/mobile/lib/features/uploads/native_transport.dart`（DartHttpTransport）
+- Test: `apps/mobile/android/app/src/test/java/com/photolive/photo_live/UploadPutExecutorTest.kt`
+
+语义：仅减少回调频率（256KB 步长 + 末次必报 sent==total），单调性与最终 total 不变——现有「monotonic bytes up to total」断言兼容。
+
+- [ ] **Step 1: Kotlin 侧**
+
+`UploadPutExecutor` object 内加常量：
+
+```kotlin
+        /** 进度回调最小步长（字节）；末块必报。 */
+        private const val PROGRESS_STEP_BYTES = 256L * 1024
+```
+
+`writeTo` 改为：
+
+```kotlin
+            override fun writeTo(sink: BufferedSink) {
+                file.inputStream().use { input ->
+                    val buffer = ByteArray(64 * 1024)
+                    var sent = 0L
+                    var lastReported = 0L
+                    while (true) {
+                        val read = input.read(buffer)
+                        if (read < 0) {
+                            break
+                        }
+                        sink.write(buffer, 0, read)
+                        sent += read
+                        if (sent - lastReported >= PROGRESS_STEP_BYTES || sent == total) {
+                            lastReported = sent
+                            onProgress?.invoke(sent, total)
+                        }
+                    }
+                    sink.flush()
+                }
+            }
+```
+
+- [ ] **Step 2: Dart dio 路径同节流**（`native_transport.dart` `DartHttpTransport.send`）
+
+```dart
+    final file = File(filePath);
+    final length = await file.length();
+    var sent = 0;
+    var lastReported = 0;
+    const progressStep = 256 * 1024;
+    final progressStream = file.openRead().map((List<int> chunk) {
+      sent += chunk.length;
+      if (sent - lastReported >= progressStep || sent == length) {
+        lastReported = sent;
+        onProgress?.call(sent, length);
+      }
+      return chunk;
+    });
+```
+
+- [ ] **Step 3: 双侧测试**
+
+Run: `cd apps/mobile/android && ./gradlew :app:testDebugUnitTest --tests "com.photolive.photo_live.UploadPutExecutorTest"`
+Expected: PASS（若有断言逐 64KB 回调次数的用例，改为断言步长 ≥256KB 且末次 sent==total）
+Run: `cd apps/mobile && flutter test test/features/uploads/`
+Expected: PASS
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add apps/mobile/android/app/src/main/kotlin/com/photolive/photo_live/UploadPutExecutor.kt apps/mobile/android/app/src/test/java/com/photolive/photo_live/UploadPutExecutorTest.kt apps/mobile/lib/features/uploads/native_transport.dart
+git commit -m "perf(app): throttle upload progress callbacks to 256KB steps"
+```
+
+---
+
+### Task 5: wechat_assets_picker 集成（解除 100 张上限 + 连选/全选）
+
+**Files:**
+- Modify: `apps/mobile/pubspec.yaml`
+- Modify: `apps/mobile/android/app/src/main/AndroidManifest.xml`
+- Modify: `apps/mobile/lib/features/uploads/enqueue.dart`
+- Modify: `apps/mobile/lib/pages/album_detail_page.dart:331`
+- Modify: `apps/mobile/lib/pages/capture_page.dart:307`
+- Test: `apps/mobile/test/pages/album_detail_page_test.dart:338`、`test/pages/capture_page_test.dart:179`（及 grep 命中的其余 override）
+
+- [ ] **Step 1: 加依赖**
+
+`pubspec.yaml` 选图/连拍分组追加：
+
+```yaml
+  # 选图 / 连拍
+  image_picker: ^1.2.3
+  camera: ^0.12.1
+  # 应用内相册选择器（连选/全选/无系统 100 张上限；基于 photo_manager）
+  wechat_assets_picker: ^10.1.3
+```
+
+Run: `cd apps/mobile && flutter pub get`
+Expected: 解析成功（photo_manager ^3.5.0 随依赖引入）
+
+- [ ] **Step 2: Android 权限声明**
+
+`AndroidManifest.xml` 权限区追加（minSdk 24 / targetSdk 36 已满足包要求）：
+
+```xml
+    <!-- 应用内相册选择器（wechat_assets_picker/photo_manager）：图片读取 -->
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-permission
+        android:name="android.permission.READ_MEDIA_VISUAL_USER_SELECTED"
+        android:maxSdkVersion="34"/>
+    <uses-permission
+        android:name="android.permission.READ_EXTERNAL_STORAGE"
+        android:maxSdkVersion="32"/>
+```
+
+（iOS 留 G3：届时 Info.plist 需 `NSPhotoLibraryUsageDescription`。）
+
+- [ ] **Step 3: 替换 multiImagePickerProvider 实现**（`enqueue.dart`）
+
+typedef 增加BuildContext（picker 需页面上下文）：
+
+```dart
+/// 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(BuildContext context);
+```
+
+provider 实现：
+
+```dart
+/// 多图选择 Provider（生产=wechat_assets_picker；测试 override）。
+///
+/// - 应用内选择器：长按进入多选 + 拖动连选 + 全选；无系统 Photo Picker
+///   的 100 张硬上限（软上限 9999 防极端内存，photo_manager 网格分页
+///   加载，实际不受限）；
+/// - originFile 取原始文件路径（Android 图片无转码副本，省一次 cache
+///   中转复制）；权限请求由 picker 内部处理，拒绝时返回空（等同取消）。
+final multiImagePickerProvider = Provider<MultiImagePicker>(
+  (ref) => (context) async {
+    final locale = Localizations.maybeLocaleOf(context);
+    final textDelegate = locale?.languageCode == 'zh'
+        ? const ChineseTextDelegate()
+        : const EnglishTextDelegate();
+    final assets = await AssetPicker.pickAssets(
+      context,
+      pickerConfig: AssetPickerConfig(
+        requestType: RequestType.image,
+        maxAssets: kPickerSoftMaxAssets,
+        textDelegate: textDelegate,
+      ),
+    );
+    if (assets == null) return const <String>[];
+    final paths = <String>[];
+    for (final asset in assets) {
+      final file = await asset.originFile;
+      if (file != null) paths.add(file.path);
+    }
+    return paths;
+  },
+);
+
+/// 选图软上限（用户要求不设硬限制；9999 为防误触极端值）。
+const int kPickerSoftMaxAssets = 9999;
+```
+
+文件头补 import：
+
+```dart
+import 'package:flutter/widgets.dart' show BuildContext, Localizations;
+import 'package:wechat_assets_picker/wechat_assets_picker.dart';
+```
+
+- [ ] **Step 4: 更新两处调用点**
+
+`album_detail_page.dart` `_pickFromGallery`：
+```dart
+    final paths = await ref.read(multiImagePickerProvider)(context);
+```
+`capture_page.dart` `_pickFromGallery` 同样改为 `(context)`。
+
+- [ ] **Step 5: 更新测试替身签名**
+
+所有 `multiImagePickerProvider.overrideWith((ref) => () async => galleryPaths)` 改为：
+
+```dart
+            multiImagePickerProvider
+                .overrideWith((ref) => (context) async => galleryPaths),
+```
+
+Run: `cd apps/mobile && grep -rn "multiImagePickerProvider" test/ lib/` 确认无遗漏签名。
+
+- [ ] **Step 6: 全量测试 + 静态检查**
+
+Run: `cd apps/mobile && flutter analyze && flutter test`
+Expected: analyze 无新增告警；测试全 PASS
+
+- [ ] **Step 7: Commit**
+
+```bash
+git add apps/mobile/pubspec.yaml apps/mobile/pubspec.lock apps/mobile/android/app/src/main/AndroidManifest.xml apps/mobile/lib/features/uploads/enqueue.dart apps/mobile/lib/pages/album_detail_page.dart apps/mobile/lib/pages/capture_page.dart apps/mobile/test/
+git commit -m "feat(app): in-app asset picker (wechat_assets_picker) - unlimited multi-select with range selection"
+```
+
+---
+
+### Task 6: 测试服务器验证（测试服务器优先工作流）
+
+**Files:** 无代码改动；产出验证记录 `docs/plans/progress/`（按项目验收记录惯例）。
+
+- [ ] **Step 1: 构建指向测试服务器的包**
+
+Run: `cd apps/mobile && flutter build apk --release --dart-define=API_BASE=<测试服务器 cn-api 入口，见 docs/plans/2026-09-21-测试服务器部署方案.md 与 memory（端口 32005）>`
+Expected: 产物 `build/app/outputs/flutter-apk/app-release.apk`
+
+- [ ] **Step 2: 基线 A/B（并发效果量化）**
+
+- 同一批 20 张照片（同网络环境）：新包默认（并发 4）vs `--dart-define=MAX_PARALLEL_UPLOADS=2` 各测一次；
+- 记录：入队阶段（全部 queued）耗时、传完总耗时、并发上传中通知条数。
+
+- [ ] **Step 3: 功能核对清单**
+
+- [ ] 首次进选择器：系统存储权限弹窗，允许后网格正常；永久拒绝路径返回空（等同取消，无崩溃）
+- [ ] 长按进入多选 + 拖动连选；「全选」可用；zh/en 文案随 App 语言
+- [ ] 一次选 **>100 张**（如 150 张）入队成功，队列页计数正确
+- [ ] 连拍页（capture）相册入口同样生效；去重弹窗（filename+bytes）不受影响
+- [ ] 上传中切后台：WorkManager 续传、通知进度正常
+- [ ] 中途断网→恢复：waitingNetwork 退避与立即重试语义不变
+- [ ] 完成后源文件按保留期清理（队列页无异常残留）
+
+- [ ] **Step 4: 记录验收结果 + Commit**
+
+```bash
+git add docs/plans/progress/
+git commit -m "docs(app): upload speedup + asset picker verification on test server"
+```
+
+---
+
+## 风险与回退
+
+| 风险 | 缓解 |
+|---|---|
+| 并发 4 在弱网引发更多 waitingNetwork 抖动 | dart-define 回调 2/3 实测定值；失败分类/退避机制不变 |
+| 4 条并发上传通知观感 | 低优先级 channel 已设；观察后决定是否做汇总通知（Out of scope） |
+| Android 15+ dataSync FGS 6 小时上限影响超大尾批 | 既有幂等重传保障；本次不动 |
+| photo_manager 权限被永久拒绝 | 返回空列表=取消语义，不阻断主流程；后续可加「去设置」引导（不在本次） |
+| 大批量（数百张）DB/内存压力 | photo_manager 分页加载；drift 逐行写；队列页既有分页渲染 |
+
+回退开关：并发（MAX_PARALLEL_UPLOADS）、准备并发（PREPARE_CONCURRENCY）均可用 dart-define 无代码回退；选图器回退 = revert Task 5 单个 commit。