Setup exports in the infra __init__.py

This helps avoid issues where model classes are not evaluated. If the models
are not properly imported then Sqlalchemy can explode during database initialization
since the mapped columns have not yet been registered.

Later, having the models all imported into __init__.py will help with setting
up a test db since it will ensure that the registrations for all models is happening
as the classes are evaluated during the imports in the package init file.

src/infra/__init__.py

@@ -0,0 +1,27 @@
+from .db import Base, CRUD, CRUDRepo, UpdateMissingEntryError, get_database
+from .users import UserModel, UserRepoImpl
+from .publication import (
+    PublicationEntryModel,
+    PublicationSequenceModel,
+    PublicationOrderModel,
+    PublicationModel,
+    PublicationRepoImpl,
+)
+from .subscription import SubscriptionModel, SubscriptionRepoImpl
+
+__all__ = [
+    'Base',
+    'CRUD',
+    'CRUDRepo',
+    'UpdateMissingEntryError',
+    'get_database',
+    'UserModel',
+    'UserRepoImpl',
+    'PublicationEntryModel',
+    'PublicationSequenceModel',
+    'PublicationOrderModel',
+    'PublicationModel',
+    'PublicationRepoImpl',
+    'SubscriptionModel',
+    'SubscriptionRepoImpl',
+]

src/main.py

@@ -6,8 +6,7 @@ from src.services.email import EmailService, get_email_service
 from src.services.auth import AuthService
 from src.services.users.service import UserService
 from dataclasses import dataclass
-from src.infra.db import get_database
-from src.infra.users import UserRepoImpl
+from src.infra import get_database, UserRepoImpl
 from waitress import serve
 from flask import Flask
 import argparse