Small final touches on schema

shared/workspaces/src/workspaces/schema.py

@@ -114,7 +114,7 @@ class Capability(Base, CapabilityIF):
             self, parameters: ParametersIF, future_products: FutureProductIF, versions: str
     ):
         """
-        Create a new request for this capability
+        Create a new request for this capability with specific options
         """
         return CapabilityRequest(
             capability=self.capability_name,
@@ -143,6 +143,9 @@ class CapabilityRequest(Base, CapabilityRequestIF):
 
 
 class CapabilityExecution(Base, CapabilityExecutionIF):
+    """
+    Schema representation of a capability request's execution record
+    """
     __tablename__ = 'capability_executions'
     id = sa.Column('execution_id', sa.Integer, primary_key=True)
     workflow_request = sa.Column(
@@ -150,6 +153,7 @@ class CapabilityExecution(Base, CapabilityExecutionIF):
         sa.Integer,
         sa.ForeignKey('workflow_requests.workflow_request_id')
     )
+    current_step = sa.Column('current_step', sa.Integer)
 
 
 class Workflow(Base):