docs: restructure audit docs and create loss recovery action plan (#331)

- Clean up 80_implementation_audit.md: remove review history (6.1/6.2),
  extract SQL queries, condense data quality section
- Create 85_loss_recovery_action_plan.md with 13 action items across
  3 phases (Phase 1: stop bleeding, Phase 2: data integrity + v2,
  Phase 3: v3 session optimization)
- Extract standard audit SQL queries to scripts/audit_queries.sql
- Update docs/ouroboros/README.md with 85_ link
- Create Gitea issues #318-#330 for all 13 action items

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/ouroboros/README.md

@@ -23,6 +23,7 @@ Updated: 2026-02-26
 9. 저장소 강제 설정 체크리스트: [60_repo_enforcement_checklist.md](./60_repo_enforcement_checklist.md)
 10. 메인 에이전트 아이디에이션 백로그: [70_main_agent_ideation.md](./70_main_agent_ideation.md)
 11. v2/v3 구현 감사 및 수익률 분석: [80_implementation_audit.md](./80_implementation_audit.md)
+12. 손실 복구 실행 계획: [85_loss_recovery_action_plan.md](./85_loss_recovery_action_plan.md)
 
 ## 운영 규칙