refactor: Consolidate RFID mapping and add bidirectional pathfinding

Major improvements to AGV navigation system:

• Consolidated RFID management into MapNode, removing duplicate RfidMapping class
• Enhanced MapNode with RFID metadata fields (RfidStatus, RfidDescription)
• Added automatic bidirectional connection generation in pathfinding algorithms
• Updated all components to use unified MapNode-based RFID system
• Added command line argument support for AGVMapEditor auto-loading files
• Fixed pathfinding failures by ensuring proper node connectivity

Technical changes:
- Removed RfidMapping class and dependencies across all projects
- Updated AStarPathfinder with EnsureBidirectionalConnections() method
- Modified MapLoader to use AssignAutoRfidIds() for RFID automation
- Enhanced UnifiedAGVCanvas, SimulatorForm, and MainForm for MapNode integration
- Improved data consistency and reduced memory footprint

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

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

Cs_HMI/AGVMapEditor/Models/RfidMapping.cs

@@ -1,4 +1,5 @@
 using System;
+using AGVNavigationCore.Models;
 
 namespace AGVMapEditor.Models
 {