feat: Complete Pennyzo frontend with live waitlist tracking

- Live waitlist integration with backend API
- Real-time polling every 60 seconds
- Comprehensive API logging and error handling
- WaitlistContext for global state management
- Responsive UI with live data updates
- Registration form with automatic waitlist refresh
- Modern React/TypeScript architecture
- Tailwind CSS styling with luxury theme

src/vite-env.d.ts

@@ -0,0 +1,13 @@
+/// <reference types="vite/client" />
+
+interface ImportMetaEnv {
+  readonly VITE_API_BASE_URL: string
+  readonly MODE: string
+  readonly DEV: boolean
+  readonly PROD: boolean
+  // more env variables...
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv
+}