The fetcher's "saved opportunities" and "fetched opportunities" lines now name the source

internal/fetcher/worker_ftsmock.go

@@ -89,7 +89,11 @@ func fetchFTSMock(
 		opportunity.Source = ftsMockSource
 	}
 
-	tagged(logger).Info("fetched opportunities", "count", len(opportunities))
+	tagged(logger).Info(
+		"fetched opportunities",
+		"source", ftsMockSource,
+		"count", len(opportunities),
+	)
 
 	return opportunities, err
 }