feat: Implement configuration management and logging for Markov bot

- Added AppConfig class to manage application configuration with environment variable support.
- Introduced JSON5 support for configuration files, allowing both .json and .json5 extensions.
- Implemented logging using Pino with pretty-printing for better readability.
- Created a MarkovStore class for efficient storage and retrieval of Markov chains with O(1) sampling.
- Developed a WorkerPool class to manage worker threads for parallel processing of tasks.
- Added methods for building chains, generating responses, and handling task submissions in the worker pool.
- Included validation for configuration using class-validator to ensure correctness.
- Established a clear structure for configuration, logging, and Markov chain management.

bench/load_test.ts

@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+import 'reflect-metadata';
 
 /**
  * Markov Discord Load Testing Script