Summary

This PR introduces a comprehensive save system for LP with the following key features:

• Dynamic event logging - Automatic capture and storage of game events with cleanup
• Incremental saving - Snapshot and rollback functionality for quick saves
• Platform-aware storage - Proper save locations for Windows, macOS, and Linux
• Rich metadata - Timestamps, game version, platform info automatically included
• Easy integration - World extension methods for simple save/load calls

Technical Implementation

• Added GameTracker resource for centralized state management
• Implemented automatic periodic saves with configurable intervals
• Platform-specific save directories following OS standards
• Reflection-based component serialization for Saveable entities
• Version migration system for backward compatibility
• Snapshot system for experimental gameplay features

Usage Example

// Simple API for game integration
world.save_game("quicksave.json")?;
world.load_game("checkpoint.json")?;

// Automatic saves every 60 seconds
if tracker.should_auto_save(delta_time) {
    tracker.auto_save(&mut world, game_time)?;
}

Additional Improvements

• Updated AI components with proper Reflect traits for save compatibility
• Improved electromagnetic field calculations for accuracy
• Enhanced plugin architecture following Bevy best practices

Closes

Fixes #1, #2, #3