Consolidate documentation and update backend services

- Reorganize docs into 'Core deployment guides' and 'Setup and configuration' subdirectories
- Consolidate redundant documentation files (ACR, pipelines, deployment guides)
- Add documentation consolidation plan
- Update backend database factory and logger services
- Update migration script and docker-compose configurations
- Add PostgreSQL setup script

docs/DATABASE-RESET-GUIDE.md

@@ -129,7 +129,7 @@ If you want to clear data but keep the database structure:
 
 ```bash
 # Connect to database
-docker-compose exec postgres psql -U cmdb -d cmdb_cache
+docker-compose exec postgres psql -U cmdb -d cmdb_insight
 
 # Clear all data (keeps schema)
 TRUNCATE TABLE attribute_values CASCADE;
@@ -175,7 +175,7 @@ EOF
 - ✅ All relations (`object_relations` table)
 - ❌ Schema cache (kept for faster schema discovery)
 - ❌ Schema mappings (kept for configuration)
-- ❌ User data and classifications (separate database)
+- ❌ User data and classifications (stored in same database, but not cleared by cache clear)
 
 ### Cleared by Volume Reset:
 - ✅ Everything above
@@ -189,7 +189,7 @@ After reset, verify the database is empty and ready for rebuild:
 
 ```bash
 # Check object counts (should be 0)
-docker-compose exec postgres psql -U cmdb -d cmdb_cache -c "
+docker-compose exec postgres psql -U cmdb -d cmdb_insight -c "
   SELECT 
     (SELECT COUNT(*) FROM objects) as objects,
     (SELECT COUNT(*) FROM attribute_values) as attributes,