refactor: improve readability, error handling, and performance in Dat…

[Nats-hope]

…aMonitoring class

This refactor enhances the DataMonitoring class by improving type annotations, making the code more readable, and reducing potential type-related errors. Exception handling has been strengthened with more meaningful error messages and better logging, which provides clearer insights during critical operations like version checks and database/schema retrieval.

[michael-myaskovsky]

Hi! Thank you for you great contribution! I see that it fails on our ci due to some formatting issues, if you'll fix it, I'll be able to merge.

[arbiv]

Closing due to inactivity