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/Controls/AGVState.cs

@@ -0,0 +1,21 @@
+namespace AGVNavigationCore.Controls
+{
+    #region Interfaces
+
+    /// <summary>
+    /// AGV 상태 열거형
+    /// </summary>
+    public enum AGVState
+    {
+        Idle,           // 대기
+        Moving,         // 이동 중
+        Rotating,       // 회전 중
+        Docking,        // 도킹 중
+        Charging,       // 충전 중
+        Error           // 오류
+    }
+
+        
+
+    #endregion
+}