refactor: reorganize import statements for consistency across multiple files

tests/services/test_analytics_service.py

@@ -8,6 +8,9 @@ from decimal import Decimal
 
 import pytest
 import pytest_asyncio
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.pool import StaticPool
+
 from app.models import Base
 from app.models.contact import Contact
 from app.models.deal import Deal, DealStage, DealStatus
@@ -16,8 +19,6 @@ from app.models.organization_member import OrganizationMember, OrganizationRole
 from app.models.user import User
 from app.repositories.analytics_repo import AnalyticsRepository
 from app.services.analytics_service import AnalyticsService, invalidate_analytics_cache
-from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
-from sqlalchemy.pool import StaticPool
 from tests.utils.fake_redis import InMemoryRedis