Version Updates:
- Bumped rmqtt-web-hook from 0.1.3 to 0.1.4

Core Changes:
- Removed manual thread pool management in favor of Tokio runtime
- Eliminated worker_threads/server_workers configuration options
- Consolidated task execution using ServerContext's exec queue
- Simplified gRPC server startup using Tokio spawn

Configuration Improvements:
- Removed redundant worker_threads/server_workers settings
- Enhanced documentation for web-hook queue settings
- Streamlined RPC configuration section
- Added descriptive comments for socket options

Performance Monitoring:
- Cleaned up gRPC server active stats tracking
- Simplified client creation without ping thread

Code Quality:
- Removed unused init_task_exec_queue functions
- Reduced struct fields by removing redundant httpc client
- Improved configuration change detection logic