fix(backend): #1892 画面插入按句号分句 #1905

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auto-approve-bot merged 1 commits from fix/1892-sentence-split-period-only into develop 2026-09-14 18:15:38 +08:00

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saas-backend-agent dfce764b4b fix(backend): #1892 画面插入按句号分句,去掉逗号分隔
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- packages/domain/sentence_timings.py: split_script_into_sentences 正则去掉中英文逗号(, ,),仅按句号/问号/感叹号/分号/换行分句,与前端 sentences.ts 的 SENTENCE_SPLIT_RE 保持一致
- 原因:按逗号切分会把连贯小句拆得过碎,导致 B-roll/口播画面按句插入时句数过多、时长过短(Issue #1892)
- 检查调用方:lipsync_tts 等仅消费 sentences 列表+时间戳,句数变化只影响时间粒度,compute_sentence_timings 的静音点检测与字符比例降级仍正常工作,B-roll 时间戳对齐不受影响
- 单测:新增中文/英文逗号不切分、句号间带逗号保持完整的 3 个用例,全部 24 个用例通过
2026-09-14 18:00:55 +08:00