Initial commit: Add project files

frontend/src/env.d.ts

@@ -0,0 +1,10 @@
+/// <reference types="vite/client" />
+
+interface ImportMetaEnv {
+  readonly VITE_API_BASE_URL?: string
+  readonly VITE_UI_ADAPTER?: 'primevue' | 'native'
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv
+}