new workspace members are provisional until they log in for the first time

atst/models/user.py

@@ -1,4 +1,4 @@
-from sqlalchemy import String, ForeignKey, Column, Date
+from sqlalchemy import String, ForeignKey, Column, Date, Boolean
 from sqlalchemy.orm import relationship
 from sqlalchemy.dialects.postgresql import UUID
 
@@ -26,6 +26,8 @@ class User(Base, mixins.TimestampsMixin, mixins.AuditableMixin):
     designation = Column(String)
     date_latest_training = Column(Date)
 
+    provisional = Column(Boolean)
+
     @property
     def atat_permissions(self):
         return self.atat_role.permissions