Add models for CRM entities: Activity, Contact, Deal, Organization, OrganizationMember, Task; update User model

app/models/__init__.py

@@ -1,5 +1,24 @@
 """Model exports for Alembic discovery."""
+from app.models.activity import Activity, ActivityType
 from app.models.base import Base
+from app.models.contact import Contact
+from app.models.deal import Deal, DealStage, DealStatus
+from app.models.organization import Organization
+from app.models.organization_member import OrganizationMember, OrganizationRole
+from app.models.task import Task
 from app.models.user import User
 
-__all__ = ["Base", "User"]
+__all__ = [
+	"Activity",
+	"ActivityType",
+	"Base",
+	"Contact",
+	"Deal",
+	"DealStage",
+	"DealStatus",
+	"Organization",
+	"OrganizationMember",
+	"OrganizationRole",
+	"Task",
+	"User",
+]