"""
shell/ — AppShell 外殼元件
外部可直接用：from layout.shell import generate_header
"""
from .header    import generate_header    # noqa: F401
from .navbar    import generate_navbar    # noqa: F401
from .main      import generate_main      # noqa: F401
from .footer    import generate_footer    # noqa: F401
from .callbacks import generate_toggle_navbar, switch_light_dark  # noqa: F401