Add site builder service to Docker Compose and remove obsolete scripts

- Introduced a new service `igny8_site_builder` in `docker-compose.app.yml` for site building functionality, including environment variables and volume mappings.
- Deleted several outdated scripts: `create_test_users.py`, `test_image_write_access.py`, `update_free_plan.py`, and the database file `db.sqlite3` to clean up the backend.
- Updated Django settings and URL configurations to integrate the new site builder module.

site-builder/vite.config.ts

@@ -0,0 +1,31 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const sharedPathCandidates = [
+  path.resolve(__dirname, '../frontend/src/components/shared'),
+  path.resolve(__dirname, '../../frontend/src/components/shared'),
+  '/frontend/src/components/shared',
+];
+const sharedComponentsPath = sharedPathCandidates.find((candidate) => fs.existsSync(candidate)) ?? sharedPathCandidates[0];
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      '@shared': sharedComponentsPath,
+    },
+  },
+  server: {
+    host: '0.0.0.0',
+    port: 5175,
+    allowedHosts: ['builder.igny8.com'],
+    fs: {
+      allow: [path.resolve(__dirname, '..'), sharedComponentsPath],
+    },
+  },
+});