Implement nation management UI for leaders - @Preponderous-Software/Beyond-Nations/issues/175

[Copilot]

Implementing nation management UI for leaders with the following features:

• Analyze existing codebase structure and UI patterns
• Understand current nation management system
• Plan minimal changes needed
• Add rename functionality to Nation class
• Create NationManagementInfoBox UI component
• Create NationRenameCommand for renaming nations
• Create NationDisbandCommand for disbanding nations
• Create NationTransferOwnershipCommand for transferring leadership
• Integrate nation management UI into WorldScreen for leaders only
• Add tests for new nation management functionality
• Verify all functionality works correctly

Implementation Details:

New Features Added:

1. Nation Rename: Leaders can rename their nations via text input
2. Nation Disband: Leaders can disband their nations (removes all members and settlements)
3. Transfer Ownership: Leaders can transfer leadership to another member

New Files Created:

• NationRenameCommand.cs - Command for renaming nations
• NationDisbandCommand.cs - Command for disbanding nations
• NationTransferOwnershipCommand.cs - Command for transferring ownership
• NationManagementInfoBox.cs - UI component for nation management
• Test files for all new commands
• TestNationManagementIntegration.cs - Comprehensive integration test

UI Integration:

• Added "Manage Nation" button for leaders in WorldScreen
• Created modal-style InfoBox for nation management operations
• UI only appears for nation leaders
• Includes close button and proper input validation

Key Features:

• Input validation for empty names
• Security checks to ensure only leaders can perform actions
• Member selection UI for ownership transfer
• Proper cleanup when disbanding (removes settlements and members)
• Status messages for user feedback

Technical Fixes:

• Fixed InfoBox constructor parameter order consistency
• Corrected Player constructor calls in tests (int vs float parameters)
• Added comprehensive integration test validating full workflow
• Verified all components work together correctly

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[dmccoystephenson]

@copilot Try again

[dmccoystephenson]

@copilot Continue your work

[Copilot]

@copilot Continue your work

Completed the nation management UI implementation with all requested features working correctly. Fixed constructor parameter order issues and added comprehensive tests. The implementation includes:

✅ Nation rename functionality with input validation
✅ Nation disband with proper cleanup
✅ Leadership transfer with member selection UI
✅ Leader-only access controls and security checks
✅ Integration tests validating full workflow

Commit: dcecb79