[Task]: Use a static type checker e.g. mypy, in our CI

[aponcedeleonch]

Description

Currently, we are using type annotations in most, if not all, of our functions, classes, and variables. However, due to Python’s dynamic nature, these types act more like hints or documentation rather than something that is strictly enforced. By integrating a static type checker into our CI pipeline, we can proactively catch potential type-related bugs, such as accidentally changing the type of a variable when passing it between functions, without realizing it.

mypy is a popular static type checker for Python. It analyzes your code and alerts you when types are used incorrectly — for example, if a function expects a string but receives an integer. Adding mypy to our CI pipeline would help us ensure better type safety across the codebase, improve code clarity, and reduce the likelihood of subtle bugs making their way into production.

Additional Context

No response