Cross-domain relationships like Product.order_items → OrderItem use
string references that SQLAlchemy resolves by class name lookup. All
model packages must be imported so every class is registered before
mapper configuration runs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
shared/logging/ shadows Python's stdlib logging module, causing a
circular import when any code does `import logging`. This breaks
both the entrypoint Redis flush and Hypercorn app loading.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>