feat(network): per-flow scheduler priority via netBoost data-flow registration

[qiin2333]

改了啥

• 串流三路 socket(video/audio RTP UDP、control)在连接建立后通过 native 桥 getStreamSocketFds() 拿到 fd + 本地端口，注册到 netBoost.setDataFlowDesc（API 26+，PRIO_HIGH），停止时发 LEAVE 注销
• NetworkBoostService.registerStreamingFlows()：API 版本守卫 + 逐流注册/注销，失败只打日志不影响串流
• 删除 PR feat(harmonyos): prepare API 26 follow-ups #40 预埋后从未接线的五元组死接口（NetworkBoostFiveTupleFlow 等，无外部调用方）
• submodule pin 指向 feat(stream): expose live streaming sockets for platform QoS integration qiin2333/moonlight-common-c#25（LiGetStreamSockets() fd 注册表）

为啥要改

抗网络抖动的最后一块空白：per-flow 调度优先级。此前只有 DSCP 标记（路由器内有效）和 realtimeGame 全 App 级 QoS 申报；setDataFlowDesc 能让系统调度精确到串流 socket 本身。一直没接的原因是 ArkTS 拿不到 native socket fd（PR #40 记录的原生阻碍），本 PR 与 common-c#25 一起把它补上。

验证

• 全新 worktree 基于 master + 本分支：assembleHap 构建通过（arm64-v8a + x86_64）
• 模拟器（API 24，HarmonyOS 6.1.0）+ 真实 Sunshine 主机串流实测：
  • fd 链路全通：[StreamingSession] 串流 socket: video fd=93 port=59577, audio fd=80 port=37911, control fd=91 port=49135
  • 运行时守卫正确跳过：API 24 < 26,跳过流描述注册
  • reportQoe / netQosChange / netSceneChange 既有行为无回归，串流期间无崩溃无异常
• ⏳ setDataFlowDesc 真实调用需 API 26 设备，待真机验证（模拟器系统镜像为 API 24）

Test plan

• API 26 真机串流：hilog 确认三条流 setDataFlowDesc 注册成功、停止时 LEAVE
• 串流启停循环多次，确认 fd 重新注册无残留
• 弱网（可选）：观察系统调度是否改善抖动表现

🤖 Generated with Claude Code

Summary by CodeRabbit

• 新功能

  • 新增串流连接信息获取能力，支持识别视频、音频和控制连接。
  • 串流启动后自动为相关连接配置更高优先级的网络调度。
  • 在受支持的设备和系统版本上优化实时游戏串流体验。

• 改进

  • 串流结束时自动清理已注册的网络流和场景状态。
  • 网络流注册失败时不会中断串流过程。
  • 优化场景进入与退出处理，提升连接管理稳定性。

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📝 Walkthrough

Walkthrough

新增 native 串流 socket 信息导出。ETS 层将 native 数据转换为 StreamSocketFds。串流启动后，NetworkBoostService 按 fd 注册高优先级流描述，并管理场景和 fd 清理。

Changes

串流流描述注册

Layer / File(s)	Summary
Native socket 信息导出 nativelib/src/main/cpp/moonlight_bridge.cpp, nativelib/src/main/cpp/moonlight_bridge.h, nativelib/src/main/cpp/napi_init.cpp, nativelib/src/main/cpp/moonlight-common-c	新增 getStreamSocketFds NAPI 导出。接口返回视频 RTP、音频 RTP 和控制 socket 的 fd 及本地端口。子模块引用同步更新。
ETS socket 数据适配 entry/src/main/ets/service/streaming/MoonBridge.ets	新增 StreamSocketInfo、StreamSocketFds 和 getStreamSocketFds()。该方法将 native 扁平字段转换为嵌套结构。
流描述注册与会话接入 entry/src/main/ets/service/streaming/StreamingSession.ets, entry/src/main/ets/service/network/NetworkBoostService.ets	串流启动后获取并注册三个 socket。满足设备支持、会话激活且 SDK API ≥ 26 时，NetworkBoostService 注册有效 fd，并在清理时逐个发送 SCENE_EVENT_LEAVE。移除旧的五元组和 socket 流类型及 setDataFlowDesc 方法。

Estimated code review effort: 4 (Complex) | ~45 minutes

Merge Risk: ⚪ Minimal · up to 2797e

The change adds per-flow network priority registration with API guards and failure isolation; no actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 3 files. (1 skipped: 1 …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确概括了本次变更的主要目标：通过 netBoost 数据流注册为串流 socket 设置按流调度优先级。
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 3 files. (1 skipped: 1 unsupported.)

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• Create PR with unit tests
• Commit unit tests in branch codex/netboost-flow-priority

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Actionable comments posted: 1

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Inline comments:
In `@entry/src/main/ets/service/network/NetworkBoostService.ets`:
- Around line 247-249: Update stop() to track whether the scene was successfully
entered independently of registeredFlowFds; when
setSceneDesc(...SCENE_EVENT_ENTER) succeeds, still send SCENE_EVENT_LEAVE during
clearDataFlowDesc() even if fds is empty or all setDataFlowDesc calls fail,
while preserving the early return for scenes that were never entered.

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📥 Commits

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📒 Files selected for processing (7)

• entry/src/main/ets/service/network/NetworkBoostService.ets
• entry/src/main/ets/service/streaming/MoonBridge.ets
• entry/src/main/ets/service/streaming/StreamingSession.ets
• nativelib/src/main/cpp/moonlight-common-c
• nativelib/src/main/cpp/moonlight_bridge.cpp
• nativelib/src/main/cpp/moonlight_bridge.h
• nativelib/src/main/cpp/napi_init.cpp

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