feat: add Condo owner desk frontend and backend

runtime-config.js

@@ -0,0 +1,7 @@
+window.CONDO_RUNTIME_CONFIG = Object.freeze({
+  // The operational page reads owner accounts and usage history from the
+  // backend by default. Use ?mode=demo only for the standalone prototype.
+  defaultMode: "api",
+  apiBaseUrl: `${window.location.protocol}//${window.location.hostname}:3000`,
+  periodYear: new Date().getUTCFullYear()
+});