- P&ID: 연결 분석 API, Prefix 규칙 관리, 카테고리 분류, DXF 그래프 빌드
- LLM: 대화 요약, tool card 영구 보존, 시계열 차트(uPlot), 에이전트 모드
- KB: 청크 미리보기, Field Instrument Inference, 인증/Qdrant 클라이언트
- MCP: 서버 기능 확장, 파이프라인 수정, timeout 개선
- Frontend: P&ID UI, LLM UI, KB UI, OPC UA Write 탭 추가
- 설정: AGENTS.md, plant_context, README, opencode.json 업데이트
- 정리: 진단 체크리스트 문서 삭제
Major project initialization and feature implementation:
**Core Features:**
- OPC UA client for Honeywell Experion HS R530 integration
- Real-time data streaming and history data retrieval
- Text-to-SQL query engine with TimeScaleDB
- JSON-based node configuration system
- SQLite database with migration support
**Architecture:**
- Clean architecture with Domain, Application, Infrastructure layers
- ASP.NET Core Web API frontend
- Web UI with real-time visualization
- PKI-based OPC UA authentication (TLS)
**Infrastructure Components:**
- ExperionOpcClient: OPC UA connection management
- ExperionRealtimeService: Real-time data streaming
- ExperionHistoryService: Historical data queries
- TextToSqlService: Natural language to SQL queries
- SqlValidator: SQL injection prevention
**Database:**
- TimescaleDB integration (recommended) or SQLite fallback
- Entity Framework Core with Extenstion methods
- OPCTag, KeyValue tables for data storage
**Security:**
- Certificate-based OPC UA endpoint security
- SSL/TLS encryption for database connections
- Output param binding injection prevention
**Testing:**
- Unit tests for TextToSqlService and SqlValidator
- Integration tests for Korean time range extraction
See REVIEW_REQUEST.md for detailed code review information.
