Refactored configuration classes to inherit from a new ValidatedConfigBase using Pydantic for robust validation and error reporting. Updated api_ada_configs.py, config.py, config_base.py, and official_configs.py to replace dataclasses with Pydantic models, add field validation, and improve error messages. This change enhances configuration reliability and developer feedback for misconfigurations. Also includes minor code cleanups and removal of unused variables in other modules.
Introduced a new rare easter egg message to the items list and updated the selection weights to make the new message extremely rare while adjusting the probabilities of the existing messages.
Introduced a weighted_choice function for weighted random selection. Refactored the easter_egg function to use weighted_choice for more flexible and controlled message selection, replacing the previous randint-based logic.
