Added
- Comprehensive configuration system (`config.yml`)
- ConfigManager class for centralized configuration management
- Granular permission system with individual troll effect permissions
- Cooldown system (global, per-admin, per-target)
- Protection system:
- Exempt players list
- Admin protection
- Bypass permission protection
- World blacklist/whitelist support
- TrollEffectManager for managing cooldowns and protections
- Enhanced command system:
- `/troll help` command
- `/troll reload` command
- Tab completion
- MessageUtils for consistent message formatting
- bStats metrics integration
- Update checker system
- Professional logging system
- Enhanced GUI with configurable items and descriptions
- Configurable effect durations and intensities:
- Rocket velocity multiplier
- Freeze duration and effect levels
- Beyblade rotation speed and duration
- LSD duration, effect levels, and particle intervals
- Animal spawn count, radius, and duration
- Fake message timeout and warning delay
- Proper task management and cleanup on plugin disable
- Thread-safe collections (ConcurrentHashMap, ConcurrentHashSet)
- Memory leak prevention
- Comprehensive documentation (README.md)
- JavaDoc comments on all public methods

Changed
- Version bumped from 1.0.0 to 2.0.0
- Refactored code structure for better organization
- All hardcoded strings moved to config.yml
- All troll effects made configurable
- Improved error handling throughout the plugin
- Enhanced plugin metadata in plugin.yml
- Better plugin description and metadata
- Improved task cleanup on disable/reload
- Optimized particle and effect rendering

Fixed
- Memory leaks from uncancelled tasks
- Thread safety issues with collections
- Proper cleanup when players disconnect
- GUI title parsing issues
- Effect duration handling for infinite effects

Security
- Added permission checks for each troll effect
- Protection against trolling protected players
- Cooldown system to prevent abuse
- World restriction support