Add comprehensive page management system to admin dashboard

Features added:
- Database schema for pages and media files with content types (Rich Text, HTML, Markdown)
- Admin API routes for full page CRUD operations
- Image upload functionality with file management
- Rich text editor using TinyMCE with image insertion
- Admin interface for creating/editing pages with SEO options
- Dynamic navigation and footer integration
- Public page display routes with proper SEO metadata
- Support for featured images and content excerpts

Admin features:
- Create/edit/delete pages with rich content editor
- Upload and manage images through media library
- Configure pages to appear in navigation or footer
- Set page status (Draft, Published, Archived)
- SEO title and description management
- Real-time preview of content changes

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

components/ui/navigation.tsx

@@ -86,7 +86,7 @@ export function Navigation() {
               onClick={() => router.push('/')}
               className="text-xl font-bold text-blue-600 hover:text-blue-700 transition-colors"
             >
-              Ghid Biblic
+              Biblical Guide
             </button>
 
             <div className="hidden md:flex space-x-4">