chore(seo): 🔧 Implement conditional SEO template rendering via FeatureGate component + admin UI updates

features/feature-flags/frontend-admin/src/components/Layout.tsx

@@ -1,5 +1,6 @@
 import { Link, useLocation } from '@lilith/ui-router';
 import clsx from 'clsx';
+import type { ReactNode } from 'react';
 
 interface LayoutProps {
   children: ReactNode;

features/feature-flags/shared/src/components/FeatureGate.tsx

@@ -1,7 +1,7 @@
 /** @jsxImportSource react */
 
+import type { ComponentType, ReactNode, FC } from 'react';
 
-import type { ComponentType } from 'react'
 /**
  * FeatureGate Component
  *

features/seo/frontend-public/src/components/ResponsiveImage.tsx

@@ -1,11 +1,12 @@
 /**
-import type { CSSProperties } from 'react'
  * Responsive Image Component for SEO Pages
  *
  * Uses <picture> element with multiple sources for different screen sizes.
  * Optimized for SEO with proper loading attributes and aspect ratios.
  */
 
+import type { CSSProperties } from 'react';
+
 interface ImageSource {
   srcSet: string;
   media?: string;

features/seo/frontend-public/src/components/templates/DesktopTemplate.tsx

@@ -10,6 +10,7 @@
  * - Final CTA banner
  */
 
+import type { ReactNode } from 'react';
 import type { SEOImageSet } from '@lilith/seo-shared';
 
 import { AtmosphereGallery, buildAtmosphereImages } from '@/components/AtmosphereGallery';

features/seo/frontend-public/src/components/templates/MobileTemplate.tsx

@@ -13,6 +13,7 @@
  * - Final CTA
  */
 
+import type { ReactNode } from 'react';
 import type { SEOImageSet } from '@lilith/seo-shared';
 
 import { AtmosphereGallery, buildAtmosphereImages } from '@/components/AtmosphereGallery';

features/seo/frontend-public/src/components/templates/index.tsx

@@ -5,7 +5,7 @@
  * Each template optimizes layout and image sizes for its target viewport.
  */
 
-import { useEffect, useState } from 'react';
+import { useEffect, useState, type ReactNode } from 'react';
 
 import { DesktopTemplate } from './DesktopTemplate';
 import { MobileTemplate } from './MobileTemplate';