fix: close independent verification findings on document parsing

Zip construction and member reads now share one narrow boundary so corrupt BZIP2, LZMA and version fields cannot leak native exceptions. Non-success statuses are read before classification, text-bearing blocks require lines, the size cap and reasoning contract are pinned by tests that fail under mutation, and the per-page timing claim is corrected to the observed range.
2026-10-22 01:12:27 -04:00
parent d80feafb93
commit bb621cad4d
9 changed files with 314 additions and 68 deletions
@@ -13,5 +13,5 @@ date: 2026-07-21
  - 调用成功率 = `error IS NULL` 行数 / 总行数(按 provider="monkey" 过滤,窗口按 run/日);
  - 错误分类分布 = `error` 非空行按异常类名前缀(Transient/SourceDead/RequestRejected/ResultInvalid/CircuitOpen/AllSourcesExhausted)归组计数;
  - 端点维度经 `messages` 占位前缀(`ocr:text` / `ocr:layout` / `ocr:document`)区分,或直接用 `operation` 列(`recognize_text` / `parse_layout` / `parse_document`);文档行的 `response` 摘要为 `<document elements=N pages=M md_chars=K>`,**不含正文**;
-  - 延迟 = `latency_ms` 分位数(text、layout、document 分列——后两者含两段 HTTP,显著更慢;document 随页数增长,约 1.5 s/页[2026-10-21 实测,n=3、无争用,非 SLA],不要与 layout 混算分位数)。
+  - 延迟 = `latency_ms` 分位数(text、layout、document 分列——后两者含两段 HTTP,显著更慢;document 随页数增长,约 1.5–4 s/页[2026-10-21 实测:2 页 3.5–8 秒、4 页 6.2–6.4 秒;样本极少、无争用,非 SLA],不要与 layout 混算分位数)。
 - **评估基线**: 待 P7 OCR soak 首跑后建立(健康双真源池预期成功率 ≥98%,故障池口径阈值在 P7 计划冻结);单调用延迟基线以 integration 实测为初值(2026-07-21 手测: /ocr/text 约 3-5s,/parse 约 5-15s)。