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- Deleted several outdated scripts: `create_test_users.py`, `test_image_write_access.py`, `update_free_plan.py`, and the database file `db.sqlite3` to clean up the backend.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.

frontend/src/components/shared/layouts/DefaultLayout.tsx

@@ -0,0 +1,28 @@
+import type { ReactNode } from 'react';
+import './layouts.css';
+
+export interface DefaultLayoutProps {
+  hero?: ReactNode;
+  sections: ReactNode[];
+  sidebar?: ReactNode;
+}
+
+export function DefaultLayout({ hero, sections, sidebar }: DefaultLayoutProps) {
+  return (
+    <div className="shared-layout">
+      {hero && <div className="shared-layout__hero">{hero}</div>}
+      <div className="shared-layout__body">
+        <div className="shared-layout__main">
+          {sections.map((section, index) => (
+            <div key={index} className="shared-layout__section">
+              {section}
+            </div>
+          ))}
+        </div>
+        {sidebar && <aside className="shared-layout__sidebar">{sidebar}</aside>}
+      </div>
+    </div>
+  );
+}
+
+

frontend/src/components/shared/layouts/MinimalLayout.tsx

@@ -0,0 +1,13 @@
+import type { ReactNode } from 'react';
+import './layouts.css';
+
+export interface MinimalLayoutProps {
+  children: ReactNode;
+  background?: 'light' | 'dark';
+}
+
+export function MinimalLayout({ children, background = 'light' }: MinimalLayoutProps) {
+  return <div className={`shared-layout__minimal shared-layout__minimal--${background}`}>{children}</div>;
+}
+
+

frontend/src/components/shared/layouts/index.ts

@@ -0,0 +1,6 @@
+export { DefaultLayout } from './DefaultLayout';
+export type { DefaultLayoutProps } from './DefaultLayout';
+export { MinimalLayout } from './MinimalLayout';
+export type { MinimalLayoutProps } from './MinimalLayout';
+
+

frontend/src/components/shared/layouts/layouts.css

@@ -0,0 +1,65 @@
+.shared-layout {
+  display: flex;
+  flex-direction: column;
+  gap: 1.5rem;
+}
+
+.shared-layout__hero {
+  min-height: 320px;
+}
+
+.shared-layout__body {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr);
+  gap: 1.25rem;
+}
+
+@media (min-width: 1024px) {
+  .shared-layout__body {
+    grid-template-columns: minmax(0, 2.3fr) minmax(0, 1fr);
+  }
+}
+
+.shared-layout__section {
+  margin-bottom: 1.25rem;
+}
+
+.shared-layout__sidebar {
+  position: sticky;
+  top: 3rem;
+  align-self: flex-start;
+  background: #0f172a;
+  color: #fff;
+  border-radius: 24px;
+  padding: 1.75rem;
+  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.35);
+}
+
+.shared-layout__minimal {
+  border-radius: 30px;
+  padding: 2.5rem;
+}
+
+.shared-layout__minimal--light {
+  background: #f8fafc;
+  border: 1px solid rgba(15, 23, 42, 0.06);
+}
+
+.shared-layout__minimal--dark {
+  background: #0f172a;
+  color: #fff;
+}
+
+.shared-landing {
+  display: flex;
+  flex-direction: column;
+  gap: 1.5rem;
+}
+
+.shared-landing__highlights {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+  gap: 1rem;
+}
+
+