chore(governance): consolidate roadmap and backup policies

tools/refactor_database_structure.py

@@ -2,7 +2,7 @@
 """
 데이터베이스 구조 리팩토링
 
-파편화된 DB 파일들을 정리하고 단일 위치(src/quant_engine/)로 통합
+파편화된 DB 파일들을 정리하고 단일 canonical 위치(src/quant_engine/)를 기준으로 통합한다.
 """
 
 import shutil
@@ -149,8 +149,8 @@ archive_db/
 ```
 
 ### Step 3: Clean Obsolete References
-- Remove imports from "outputs/kis_data_collection/kis_data_collection.db"
-- Remove imports from "outputs/snapshot_admin/*.db"
+- Remove imports from legacy non-canonical database paths
+- Remove imports from archive/backup database paths
 - Update any code expecting these paths
 
 ### Step 4: Update Documentation
@@ -166,11 +166,9 @@ archive_db/
 - Simplified deployment
 
 ## Files to Delete (After Archiving)
-- outputs/kis_data_collection/ (entire dir)
-- outputs/snapshot_admin/smoke*.db (old test files)
-- outputs/qualitative_sell_strategy/qualitative_sell_strategy.db
-- Temp/snapshot_admin_*.db
-- Temp/test_kis_data_collection.db
+- archive only genuinely obsolete duplicate DBs
+- keep canonical DBs in src/quant_engine/
+- keep Temp/ only for transient validation artifacts
 """
         return plan
 
@@ -187,7 +185,7 @@ def main():
     print(plan)
 
     # 계획서 저장
-    plan_file = Path("docs/DATABASE_CONSOLIDATION_PLAN_2026_06_23.md")
+    plan_file = Path("docs/archive/DATABASE_CONSOLIDATION_PLAN_2026_06_23.md")
     plan_file.parent.mkdir(parents=True, exist_ok=True)
     with open(plan_file, 'w', encoding='utf-8') as f:
         f.write(plan)