feat: ExperionCrawler IIoT OPC UA Data Bridge Infrastructure

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.

mcp-server/pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "iiot-rag-mcp"
+version = "0.1.0"
+description = "ExperionCrawler RAG MCP Server — Qdrant + GLM-4.7-Flash"
+requires-python = ">=3.10"
+dependencies = [
+    "mcp[cli]>=1.0.0",
+    "qdrant-client>=1.9.0",
+    "sentence-transformers>=3.0.0",
+    "openai>=1.0.0",
+    "httpx>=0.27.0",
+]
+
+[project.scripts]
+iiot-rag-mcp = "server:main"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"