I've implemented several major database and performance improvements:

1. Connection Pooling with HikariCP
   
   • Added HikariCP for efficient connection management
   • Configured separate pools for SQLite and MySQL with optimized settings
   • Implemented fallback to direct connections if pool initialization fails
2. Statement Caching System
   
   • Added statement caching to reuse prepared statements
   • Implemented proper cache clearing and resource management
   • Added automatic cleanup of statement resources
3. Query Result Caching
   
   • Implemented intelligent caching for read queries
   • Added time-based expiration and cache invalidation
   • Created smart cache eviction based on related table updates
4. Transaction Management
   
   • Added proper transaction handling with commit/rollback support
   • Implemented functional interfaces for transaction operations
   • Created async transaction execution with proper error handling
5. Enhanced Batch Processing
   
   • Improved batch operation efficiency with transaction support
   • Optimized batch grouping for similar operations
   • Added automatic cache invalidation during batch operations
6. Database Optimization
   
   • Added database optimization commands (VACUUM, ANALYZE)
   • Created indexes on frequently queried columns
   • Implemented periodic cache cleanup tasks
7. Performance Monitoring
   
   • Enhanced query tracking and pending operations monitoring
   • Improved error handling and reporting for async operations
   • Added cache hit/miss tracking with efficient memory usage

I've identified why regular iron blocks and other blocks are being converted into generators or networks when placed. The issue is in the block placement event handlers that aren't properly checking for custom item metadata

Permission Management

• Network Sharing - Allow other players to use your networks with customizable permissions
• Multiple Roles - View, Use, Manage, Admin, and Owner permission levels
• Access Control - Fine-grained permission system for collaborative economics