feat(export): emit schema-validated JSONL atomically

[seonghobae]

NewsDOM JSON을 article/body-block 단위 JSONL로 내보내는 CLI입니다. 입력 권위는 ad-hoc dict 규칙이 아니라 newsdom_api.schemas.ParseResponse이며 완료 산출물은 같은 디렉터리의 temporary sibling을 통해 atomic publish합니다.

RED → causal repair

• Schema admission: RED 22631eef6e918b3ec53031a6f412899e016a92ff가 non-object page/article와 string-valued body_blocks를 거부하도록 고정했고 GREEN 165b0a0b1678fbb29732ccc15bc77bf9dd5c7e07은 JSON parse 뒤 ParseResponse.model_validate(data)로 invalid DOM을 output open 전에 fail closed합니다.
• Partial publication: RED c411b095c2302d22e320a46b67bacac7f0e99006가 후반 UTF-8 write failure에서도 기존 published bytes 보존과 no-temp-artifact를 요구했고 GREEN 7c5a181bb37b1b10d49818a5c9381abedf3c746a은 same-directory temporary sibling을 완전히 기록한 뒤 Path.replace()합니다. d1424fdd05b6fc8a7acffbfe9593f67971e2b376은 missing output-parent edge를 고정했습니다.
• CHANGELOG: 28d63d699abb2d777f988e56fac5d32486dc9f97에서 잘린 기존 release/security history와 Unreleased JSONL entry를 복구했습니다.
• Coverage authority: [tool.coverage.run].source = ["src/newsdom_api", "tools"]와 CI가 어긋나던 결함을 RED 4a590b4b799c3ab08fdc5bec823468e37fbd4700 → GREEN a33a22e1284423203dccdb675b0d99183825cc95로 수리해 workflow가 bare --cov를 사용합니다.
• Cancellation cleanup: RED 2ade2f762a192fdc4161fa007a034e8ca2c47d4d가 KeyboardInterrupt에서도 기존 output 보존과 .output.jsonl.*.tmp 0개를 요구했고 GREEN 86d602caa7d97fb0e1e30ad55cf87e7089449a13은 publication cleanup boundary를 BaseException까지 확장해 temp를 제거한 뒤 원래 cancellation을 그대로 re-raise합니다. CLI의 일반 오류 변환은 계속 Exception만 처리합니다.

Current exact state — 2026-09-07

• protected/base: develop@e06b1f3fb10903569124af011da213951e6e2473
• exact head: 86d602caa7d97fb0e1e30ad55cf87e7089449a13
• lifecycle: Draft
• current exact tests: run 34123363976, pytest job 101746261362 terminal SUCCESS; 494 passed, src/newsdom_api + tools 전체 1656 statements / 540 branches / 0 miss / 100.00%. tests/test_tools_export_jsonl_interrupt_cleanup.py도 같은 run에서 실제 실행·PASS했습니다.
• same-head terminal GREEN: scorecards 34123363840, tests 34123363976, container-image 34123363908, repository CodeQL 34123363952, ClusterFuzzLite 34123363989.
• same-head non-terminal: central CodeQL PR 34123363876, SAST 34123363974, Security Scan 34123363915.

Ready/merge는 unchanged 86d602c...에서 applicable Security/SAST/CodeQL까지 terminal GREEN, zero valid unresolved current-head findings, independent current-head review가 있어야 합니다. Previous-head evidence는 merge authority로 전용하지 않습니다.

Large NewsDOM whole-file parsing은 representative/right-cleared buyer workload에서 memory/latency 문제가 실제 측정될 때 streaming parser 또는 Rust hot path를 별도 검토합니다. No self-approval, gate weakening, scanner suppression, force push, destructive rebase, mutable sibling dependency, coverage suppression, or source-neutral CI retrigger.

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