Complete CodePress CMS refactoring

- 🏠 Refactored layout system with flexbox
- 🎨 Implemented tab-style navigation with dropdowns
- 📱 Added responsive design with mobile support
- 🔧 Enhanced template system with content type detection
- 📝 Added comprehensive documentation (guide.md, README.md)
- ⚙️ Improved security with proper file access control
- 🎨 Added meta tags for SEO and author attribution
- 📁 Fixed breadcrumb navigation and duplicate links
- 🗂️ Removed unused files and cleaned up project structure
- ⚙️ Added JSON configuration system with homepage detection
- 📱 Enhanced search functionality with snippet display
- 🔗 Implemented auto-linking between pages
- 📊 Added file metadata display in footer

Features:
- Multi-format content support (Markdown, PHP, HTML)
- Dynamic navigation with collapsible folders
- Full-text search across all content
- Responsive Bootstrap 5 design
- JSON-based configuration
- SEO-optimized meta tags
- Security-focused file management
- Mobile-first responsive design
- Auto-linking between pages
- File metadata tracking
- Breadcrumb navigation
- Custom CSS styling
- Progressive enhancement

Technical improvements:
- Replaced fixed positioning with flexbox layout
- Implemented proper template inheritance
- Added content type detection
- Enhanced security with .htaccess
- Optimized for performance
- Added proper error handling
- Implemented caching mechanisms
- Enhanced accessibility features

config.json

@@ -0,0 +1,26 @@
+{
+    "site_title": "CodePress",
+    "content_dir": "content",
+    "templates_dir": "engine/templates",
+    "default_page": "auto",
+    "homepage": "welkom",
+
+    "theme": {
+        "primary_color": "#0d6efd",
+        "navbar_style": "bg-primary"
+    },
+    "seo": {
+        "description": "CodePress CMS - Lightweight file-based content management system",
+        "keywords": "cms, php, content management, file-based"
+    },
+    "author": {
+        "name": "Edwin Noorlander",
+        "website": "https://noorlander.info",
+        "git": "https://git.noorlander.info/E.Noorlander/CodePress.git"
+    },
+    "features": {
+        "auto_link_pages": true,
+        "search_enabled": true,
+        "breadcrumbs_enabled": true
+    }
+}