feat: expand import ingestion workflow with staging previews, transactional commits, and new API tests

tests/conftest.py

@@ -11,12 +11,14 @@ from sqlalchemy.orm import sessionmaker
 from sqlalchemy.pool import StaticPool
 
 from config.database import Base
-from dependencies import get_auth_session, get_unit_of_work
+from dependencies import get_auth_session, get_import_ingestion_service, get_unit_of_work
 from models import User
 from routes.auth import router as auth_router
 from routes.dashboard import router as dashboard_router
 from routes.projects import router as projects_router
 from routes.scenarios import router as scenarios_router
+from routes.imports import router as imports_router
+from services.importers import ImportIngestionService
 from services.unit_of_work import UnitOfWork
 from services.session import AuthSession, SessionTokens
 
@@ -51,6 +53,7 @@ def app(session_factory: sessionmaker) -> FastAPI:
     application.include_router(dashboard_router)
     application.include_router(projects_router)
     application.include_router(scenarios_router)
+    application.include_router(imports_router)
 
     def _override_uow() -> Iterator[UnitOfWork]:
         with UnitOfWork(session_factory=session_factory) as uow:
@@ -58,6 +61,18 @@ def app(session_factory: sessionmaker) -> FastAPI:
 
     application.dependency_overrides[get_unit_of_work] = _override_uow
 
+    def _ingestion_uow_factory() -> UnitOfWork:
+        return UnitOfWork(session_factory=session_factory)
+
+    ingestion_service = ImportIngestionService(_ingestion_uow_factory)
+
+    def _override_ingestion_service() -> ImportIngestionService:
+        return ingestion_service
+
+    application.dependency_overrides[
+        get_import_ingestion_service
+    ] = _override_ingestion_service
+
     with UnitOfWork(session_factory=session_factory) as uow:
         assert uow.users is not None
         uow.ensure_default_roles()