fix(render): preserve PTS burst frames

[qiin2333]

改了啥呀

• 删除 PTS 调度器的固定未来槽位上限，不再因为第 4 个或第 5 个 burst 帧超出软件预算就主动释放
• 保留一帧一个 VSync 槽的节奏整形，短时硬解 burst 会排进连续槽位，平均输出恢复后自然排空
• 删除 QUEUE_FULL、重锚重试状态和对应统计；有效 PTS 只调度，只有无效 PTS 才由调度器拒绝
• 保留 2 ms 常态提交余量、晚到相移、严重晚到重锚，以及 maxLead / maxQueueSlots 积压观测
• 新增 60/90/120 FPS burst 和连续 120 轮五帧 burst 回归，确认不丢帧且队列不会逐轮增长

为啥要改

硬解输出经常成批回调，但平均帧率仍与显示刷新率一致。旧的三槽上限会把第 4 帧直接变成 QUEUE_FULL，这个杂鱼容量判断把可自然排空的瞬时 burst 误判成持续积压，所以清掉等待状态后用户仍能看到同样的基础掉帧。现在让 RenderService 接收完整的连续 PTS 槽位，客户端不再抢着替系统丢有效帧。

这版刻意保留槽位整形，只移除硬容量丢帧，便于设备侧单独验证根因。若生产速率长期高于显示速率，maxLead 和 maxQueueSlots 会直接暴露积压，而不是被主动丢帧掩盖。

验证

• c++ -std=c++17 -Wall -Wextra -Werror -I nativelib/src/main/cpp nativelib/src/main/cpp/presentation_scheduler.cpp nativelib/src/test/cpp/presentation_scheduler_test.cpp -o /tmp/moonlight-presentation-scheduler-test && /tmp/moonlight-presentation-scheduler-test: passed
• c++ -std=c++17 -Wall -Wextra -Werror -I nativelib/src/main/cpp nativelib/src/main/cpp/presentation_diagnostics.cpp nativelib/src/main/cpp/rolling_frame_rate.cpp nativelib/src/test/cpp/presentation_observability_test.cpp -o /tmp/moonlight-presentation-observability-test && /tmp/moonlight-presentation-observability-test: passed
• DEVECO_SDK_HOME=/Users/mac/ohos-sdk-cache/6.1-Release-mac/sdk-ci-shape JAVA_HOME=/Applications/DevEco-Studio.app/Contents/jbr/Contents/Home PATH=/Applications/DevEco-Studio.app/Contents/jbr/Contents/Home/bin:$PATH node hvigorw.js assembleApp --mode project -p product=default -p buildMode=debug --no-daemon: BUILD SUCCESSFUL
• git diff --check: passed

Summary by CodeRabbit

• 改进
  • 优化帧呈现调度，减少突发帧场景下的不必要丢帧。
  • 改善 60fps、90fps 和 120fps 内容的目标时间连续性与调度稳定性。
  • 优化重复时间戳帧的重新锚定处理，提升后续帧恢复效果。
  • 精简呈现统计信息，改进主机节奏模式下的性能日志。

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 7274b18f-a164-489e-acc9-fc2455462a60

📥 Commits

Reviewing files that changed from the base of the PR and between b0bdf22 and ed8961a.

📒 Files selected for processing (5)

• nativelib/src/main/cpp/native_render.cpp
• nativelib/src/main/cpp/native_render.h
• nativelib/src/main/cpp/presentation_scheduler.cpp
• nativelib/src/main/cpp/presentation_scheduler.h
• nativelib/src/test/cpp/presentation_scheduler_test.cpp

💤 Files with no reviewable changes (3)

• nativelib/src/main/cpp/native_render.h
• nativelib/src/main/cpp/presentation_scheduler.h
• nativelib/src/main/cpp/presentation_scheduler.cpp

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📝 Walkthrough

Walkthrough

Changes

队列满路径移除

Layer / File(s)	Summary
调度器删除队列满与重锚重试路径 nativelib/src/main/cpp/presentation_scheduler.*	移除 QUEUE_FULL、额外队列槽位计算及重锚重试状态和控制流。
Host-paced 统计移除队列满计数 nativelib/src/main/cpp/native_render.*	删除 preciseQueueFullCount_，并将日志字段调整为 maxQueueSlots。
调度器测试改为验证帧保留 nativelib/src/test/cpp/presentation_scheduler_test.cpp	更新 burst 与重复 PTS 测试，验证帧保留、目标时间连续和重锚事件。

Estimated code review effort: 3 (Moderate) | ~25 minutes

Possibly related PRs

• AlkaidLab/moonlight-harmony#61：同样移除 QUEUE_FULL、重锚重试状态及 host-paced 队列满统计。
• AlkaidLab/moonlight-harmony#64：共同调整 120fps 呈现调度与 burst 测试预期。
• AlkaidLab/moonlight-harmony#67：涉及 QUEUE_FULL、唯一 vsync 槽位和队列排空处理。

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 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修复的核心：保留 PTS 突发帧，不再因队列满而丢帧。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches

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• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/remove-pts-queue-cap

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