set source and source id when creating categorisation task

backend/app/plan/router.py

@@ -9,6 +9,7 @@ import asyncio
 from datetime import datetime
 
 from fastapi import APIRouter, Depends
+from backend.app.db.models.tasks import SourceEnum
 from backend.app.dependencies import validate_token
 from backend.app.plan.schemas import PlanTriggerRequest
 from backend.app.config import get_settings
@@ -68,6 +69,8 @@ async def trigger_categorisation(
         service="plan_categorisation",
         inputs=payload.model_dump(),
         task_only=True,
+        source=SourceEnum.PORTFOLIO,
+        source_id=str(payload.portfolio_id),
     )
 
     # Dispatch requests to lambdas