test: 多线程字幕顺序验证（全量真实数据夹具）+ 文档更新

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- 新增 TestSubtitleOcrOrderThreading：模拟真实 vlm-ocr API 返回（不走真实
  OCR），全量 14236 帧真实数据 + 种子化可变延迟（约 8% 慢帧，模拟真实 OCR
  延迟波动），验证 4/16 线程产物与单线程确认结果逐字节一致、并发真实发生、
  完成顺序乱序但输出保序、时间轴严格递增、每条字幕与起始时刻帧文本对齐
- 全量夹具：frames_manifest_full.json + ocr_frames_full.json（真实任务
  run_ac7f480a3ccb 全部 14236 帧），常驻测试不跳过
- AGENTS.md：更新 llm-filter 参数说明与测试资产清单

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This commit is contained in:

cat-shark

2026-08-17 23:20:20 +08:00

parent 5ffa2ac39e

commit 4ebbfc5198

4 changed files with 225 additions and 3 deletions

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testdata/frames_manifest_full.json

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testdata/ocr_frames_full.json

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