fix: RFID duplicate validation and correct magnet direction calculation

- Add real-time RFID duplicate validation in map editor with automatic rollback
- Remove RFID auto-assignment to maintain data consistency between editor and simulator
- Fix magnet direction calculation to use actual forward direction angles instead of arbitrary assignment
- Add node names to simulator combo boxes for better identification
- Improve UI layout by drawing connection lines before text for better visibility

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Cs_HMI/AGVNavigationCore/PathFinding/AGVPathResult.cs

@@ -40,6 +40,11 @@ namespace AGVNavigationCore.PathFinding
         /// </summary>
         public long CalculationTimeMs { get; set; }
 
+        /// <summary>
+        /// 탐색된 노드 수
+        /// </summary>
+        public int ExploredNodes { get; set; }
+
         /// <summary>
         /// 예상 소요 시간 (초)
         /// </summary>
@@ -66,6 +71,7 @@ namespace AGVNavigationCore.PathFinding
             NodeMotorInfos = new List<NodeMotorInfo>();
             TotalDistance = 0;
             CalculationTimeMs = 0;
+            ExploredNodes = 0;
             EstimatedTimeSeconds = 0;
             RotationCount = 0;
             ErrorMessage = string.Empty;