406b810e28
Layer-A Diagnose only. classify_worker.py:691 직전에 event_kind_hint 의 raw/normalized/in_valid/confidence 값 capture (logger.info 5줄 insert, lazy formatting + %r repr). guard 통과 X 의 specific root cause (A1 field 부재 / A2 빈 string / A3 invalid enum) 확정용. specific fix (default note / enum mapping / prompt 강화) 는 별 PR-4B-Fix-EventKindHint-Apply. Apply PR closure gate 에 logging cleanup (info → DEBUG 또는 제거) 흡수. plan: ~/.claude/plans/c-1-pr-infra-drift-1-phase-1b-linear-frost.md backup: app/workers/classify_worker.py.pre-4b-eventkind-logging.20260517