Replace master branch with local files

frontend/svelte.config.js

@@ -0,0 +1,56 @@
+import adapter from '@sveltejs/adapter-node';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+    preprocess: vitePreprocess(),
+    
+    kit: {
+        adapter: adapter({
+            out: 'build',
+            precompress: false
+        }),
+        
+        // Security improvements
+        csp: {
+            mode: 'auto',
+            directives: {
+                'default-src': ["'self'"],
+                'script-src': ["'self'", "'unsafe-inline'"],
+                'style-src': ["'self'", "'unsafe-inline'", 'https://cdnjs.cloudflare.com'],
+                'img-src': ["'self'", 'data:', 'blob:'],
+                'font-src': ["'self'", 'https://cdnjs.cloudflare.com'],
+                'connect-src': ["'self'", 'ws://localhost', 'wss://localhost', 'http://localhost:*'],
+                'media-src': ["'self'", 'blob:', 'http://localhost:*'],
+                'object-src': ["'none'"],
+                'frame-ancestors': ["'none'"],
+                'form-action': ["'self'"],
+                'base-uri': ["'self'"]
+            }
+        },
+        
+        // Enable CSRF protection (default is true)
+        csrf: {
+            checkOrigin: true
+        },
+        
+        // Environment variable configuration
+        env: {
+            publicPrefix: 'VITE_'  // This is already correct
+        },
+        
+        // Ensure default appDir is used (don't override)
+        // appDir: '_app' // This is the default, no need to set
+        
+        // Performance: prerender error pages
+        prerender: {
+            entries: ['/'],
+            handleHttpError: ({ path, referrer, message }) => {
+                // Log errors but don't fail build
+                console.warn(`${path} (${referrer}) - ${message}`);
+            }
+        }
+    }
+};
+
+export default config;