feat: add resource library and real image workflow

app/workers/activities/qc_activities.py

@@ -29,11 +29,22 @@ async def run_qc_activity(payload: StepActivityInput) -> MockActivityResult:
             candidate_uri: str | None = None
 
             if passed:
+                if payload.source_asset_id is None:
+                    raise ValueError("run_qc_activity requires source_asset_id")
+
+                source_asset = await session.get(AssetORM, payload.source_asset_id)
+                if source_asset is None:
+                    raise ValueError(f"Source asset {payload.source_asset_id} not found")
+                if source_asset.order_id != payload.order_id:
+                    raise ValueError(
+                        f"Source asset {payload.source_asset_id} does not belong to order {payload.order_id}"
+                    )
+
                 candidate = AssetORM(
                     order_id=payload.order_id,
                     asset_type=AssetType.QC_CANDIDATE,
                     step_name=payload.step_name,
-                    uri=mock_uri(payload.order_id, payload.step_name.value, "candidate.png"),
+                    uri=source_asset.uri,
                     metadata_json=jsonable({"source_asset_id": payload.source_asset_id}),
                 )
                 session.add(candidate)