Refactor Site Builder Integration and Update Docker Configuration

- Merged the site builder functionality into the main app, enhancing the SiteBuilderWizard component with new steps and improved UI.
- Updated the Docker Compose configuration by removing the separate site builder service and integrating its functionality into the igny8_sites service.
- Enhanced Vite configuration to support code-splitting for builder routes, optimizing loading times.
- Updated package dependencies to include new libraries for state management and form handling.

sites/vite.config.ts

@@ -23,10 +23,22 @@ export default defineConfig({
   server: {
     host: '0.0.0.0',
     port: 5176,
-    allowedHosts: ['sites.igny8.com'],
+    allowedHosts: ['sites.igny8.com', 'builder.igny8.com'],
     fs: {
       allow: [path.resolve(__dirname, '..'), sharedComponentsPath],
     },
   },
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          // Code-split builder routes to avoid loading in public sites
+          'builder': ['./src/builder/pages/wizard/WizardPage', './src/builder/pages/preview/PreviewCanvas', './src/builder/pages/dashboard/SiteDashboard'],
+          // Vendor chunks
+          'vendor-react': ['react', 'react-dom', 'react-router-dom'],
+          'vendor-ui': ['lucide-react', 'zustand'],
+        },
+      },
+    },
+  },
 });
-