Implement complete Docker Compose CI/CD setup with optimized builds

- Add multi-stage Dockerfile with dependency caching for both frontend and backend
- Implement Docker Compose configuration with separate frontend/backend services
- Configure Caddy as reverse proxy with proper WASM and static file serving
- Add volume mounting for frontend assets shared between containers
- Optimize build process with staged compilation and workspace handling
- Add debug logging and WASM initialization tracking for production deployment
- Update README with project motivation and "vibe coded" disclaimer

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/app.rs

@@ -575,6 +575,9 @@ pub fn App() -> Html {
         })
     };
 
+    // Debug logging
+    web_sys::console::log_1(&format!("App rendering: auth_token = {:?}", auth_token.is_some()).into());
+    
     html! {
         <BrowserRouter>
             <div class="app" onclick={on_outside_click}>