Project Structure: src
======================

📂 src/
    📂 codex_services/
        📄 __init__.py
        📂 crm/
            📄 __init__.py
            📂 booking/
                📄 __init__.py
                📄 api.py
                📄 chain_finder.py
                📄 dto.py
                📄 exceptions.py
                📄 interfaces.py
                📄 modes.py
                📄 scorer.py
                📄 validators.py
            📂 calculator/
                📄 __init__.py
                📄 slot_calculator.py
            📂 calendar/
                📄 __init__.py
                📄 engine.py
