Enhance Node Selection Logic, Error Handling, and Code Documentation in Manager Class

[CPS7]

This pull request introduces several key improvements to the Manager class

Changes:

1. Multiple Track Decoding: Updated the decodeTracks method to support decoding multiple track IDs at once, enhancing efficiency or batch operations.
2. Improved Error Handling: Enhanced error handling with descriptive messages and comprehensive try-catch blocks, ensuring the bot remains stable and provides meaningful feedback during errors.
3. Optimized Node Selection: Refined the node selection logic to prioritize nodes based on load and availability, leading to better performance and load balancing.
4. Code Comments and Documentation: Added detailed comments and documentation throughout the Manager class, improving code readability and maintainability.
5. Utilization of TypeScript Utility Types: Incorporated utility types like Partial and Readonly for better type safety and reduced risk of runtime errors.
6. Use of Optional Chaining and Nullish Coalescing: Applied modern TypeScript features for safer property access and default value assignment, reducing the potential for runtime errors.

This PR aims to make the Manager class more robust, efficient, and easier to maintain, contributing to the overall stability and performance of the wrapper.

[SxMAbel]

@CPS7