lhk229
623afdcd3c
修复 BgFilter body-read 失败被误记为 502/5xx
response.chunk() 在 HTTP 状态已成功后中断，属于「读 body 时链路断裂」
的传输层故障，但原先只抛 BAD_GATEWAY+message，外部 API 失败审计取不到
transport/timeout/upstreamStatus，回落 Some(502) → statusClass 5xx，
漏掉了 transport 场景。
- 新增 editor_image_removal_body_read_error：timeout 走 504、其余 502，
统一带 transport/timeout/latencyMs/rawExcerpt，审计正确归类为 transport。
- read_editor_image_removal_response_bytes 加 request_started_at，BgFilter
与 birefnet 两条读体路径都透传，chunk 失败可算出 latencyMs。
- BgFilter 空 body 补 latencyMs，与 Aliyun 兜底口径对齐。
- 补两个回归测试覆盖 body-read 传输故障与 timeout 分类。
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-09 09:16:56 +00:00
..
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