feat(agent_utils.py): add model detection utilities for Claude 3.7 models
fix(agent_utils.py): update get_model_token_limit to handle Claude 3.7 token limits correctly
test(model_detection.py): add unit tests for model detection utilities
chore(agent_utils.py): remove deprecated is_anthropic_claude function and related tests
style(agent_utils.py): format code for better readability and consistency
Ariel Frischer