update,

03_source/cms_backend/src/constants.ts

@@ -0,0 +1,7 @@
+const L_ERROR = 0;
+const L_WARN = 1;
+const L_INFO = 2;
+const L_DEBUG = 3;
+const L_TRACE = 4;
+
+export { L_WARN, L_INFO, L_ERROR, L_DEBUG, L_TRACE };