backend/core/exceptions.py

# Custom exception handlers for the Recipe Recommendation Bot

class RecipeNotFoundError(Exception):
    """Raised when a recipe is not found"""
    pass

class LLMServiceError(Exception):
    """Raised when LLM service encounters an error"""
    pass

class VectorStoreError(Exception):
    """Raised when vector store operations fail"""
    pass

# TODO: Add more specific exception classes and error handlers