fix: sanitize Portainer API stack response output for improved logging

.gitea/workflows/build.yml

@@ -79,8 +79,8 @@ jobs:
           echo "GET /api/stacks http code: ${STACKS_HTTP_CODE}"
           echo "GET /api/stacks stderr:"
           cat "${STACKS_ERR}" || true
-          echo "GET /api/stacks response body:"
-          cat "${STACKS_BODY}" || true
+          echo "GET /api/stacks response (sanitized):"
+          jq -r '.[] | "Id=\(.Id) Name=\(.Name) EndpointId=\(.EndpointId)"' "${STACKS_BODY}" || true
 
           if [ "${STACKS_CURL_EXIT}" -ne 0 ]; then
             echo "Failed to reach Portainer API while listing stacks."