## Major CodePress CMS Enhancement

### 🚀 New Features
- **League CommonMark Integration**: Replaced basic Markdown parser with full CommonMark 2.7 support
- **Bootstrap Sass Architecture**: Modern SCSS build system with Bootstrap 5.3.8
- **Enhanced Navigation**: Uses filenames instead of H1 titles for consistency
- **Improved Styling**: Transparent navigation backgrounds, no rounded corners

### 🎨 UI/UX Improvements
- Navigation items now use formatted filenames (e.g., "kennis-boven-aantallen" → "Kennis Boven Aantallen")
- Transparent navigation backgrounds with subtle hover effects
- Removed rounded corners from first-level navigation
- 50% opacity navigation background using Bootstrap variables

### 🔧 Technical Improvements
- **Class Organization**: Extracted CodePressCMS and SimpleTemplate to separate files
- **Full PHPDoc Documentation**: Complete documentation for all methods
- **Modern Build Process**: npm scripts for SCSS compilation
- **Enhanced Markdown Support**: Tables, strikethrough, task lists, autolinks
- **Security**: Proper HTML sanitization with CommonMark

### 📦 Dependencies
- Added `league/commonmark` for professional Markdown parsing
- Added `bootstrap` for SCSS-based styling
- Updated `sass` build process

### 🐛 Bug Fixes
- Fixed content directory path configuration
- Resolved navigation title inconsistencies
- Improved Markdown bold/italic formatting
- Fixed homepage 404 issues

### 🔄 Migration Notes
- Content directory moved from `content/` to `public/content/`
- Navigation now displays filenames instead of content H1 titles
- CSS now compiled from SCSS source files

The CMS now provides a professional, modern experience with robust Markdown support and clean, maintainable code architecture.

vendor/nette/schema/src/Schema/ValidationException.php

@@ -0,0 +1,55 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Schema;
+
+use Nette;
+
+
+/**
+ * Validation error.
+ */
+class ValidationException extends Nette\InvalidStateException
+{
+	/** @var Message[] */
+	private array $messages;
+
+
+	/**
+	 * @param  Message[]  $messages
+	 */
+	public function __construct(?string $message, array $messages = [])
+	{
+		parent::__construct($message ?: $messages[0]->toString());
+		$this->messages = $messages;
+	}
+
+
+	/**
+	 * @return string[]
+	 */
+	public function getMessages(): array
+	{
+		$res = [];
+		foreach ($this->messages as $message) {
+			$res[] = $message->toString();
+		}
+
+		return $res;
+	}
+
+
+	/**
+	 * @return Message[]
+	 */
+	public function getMessageObjects(): array
+	{
+		return $this->messages;
+	}
+}