coalesce nil UUID for null agreement

backend/modules/core/data/event.js

@@ -53,12 +53,12 @@ async function getEvent(client, userId, id, includeData, meta) {
                 'senderId', e.sender_id,
                 'recipientId', e.recipient_id,
                 'created', e.created,
-                'agreementId', (
+                'agreementId', COALESCE((
                     SELECT a.agreement_id_uuid
                     FROM agreement a
                     WHERE a.id = e.agreement_id
                     AND a.user_id = $1
-                ),
+                ), '00000000-0000-0000-0000-000000000000'),
                 ${dataSql}
                 'created', e.created
             ) AS record

backend/scripts/seed-data.js

@@ -87,22 +87,6 @@ async function api() {
         `${config.apiUrl}/api/v1/data/entity/domains/get`,
         {
             fedidUrl: config.fedidUrl, // optional
-            auth: {
-                subject: {
-                    type: "user",
-                    id: "tester",
-                },
-                action: {
-                    name: "read",
-                },
-                resource: {
-                    type: "data",
-                    id: "1234",
-                    properties: {
-                        ownerID: "tester@test.com",
-                    }
-                }
-            }
         },
         {
             headers: {