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Bucket distribution (algorithm vs allocated): - large (>10MB): 6 / 6 - scan_likely (text_density<5): 2 / 2 - study_note born-digital: 10 / 10 - Academic_Paper born-digital: 2 / 8 (under-fill — only 20 born-digital docs total in pool) - Reference born-digital: 0 / 6 (under-fill — 동상) - tech_doc (Standard/Manual/Specification): 4 / 4 - minor_doc (Note/Report/Memo/NULL): 4 / 4 - filler (rest from candidates): 12 (picked up under-fill slack) Note: 1D 의 born-digital bias 가정이 Phase 2 실 모집단과 안 맞음 (text_density 분포가 mixed-dominant: 174/237). 그래도 40 docs 가 large / scan-likely / 다양 doctype 커버 — canary 진단 목적 충족. Next: 사용자 승인 게이트 — --no-dry-run enqueue 시점 결정.