## 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/Message.php

@@ -0,0 +1,99 @@
+<?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;
+use function implode, preg_last_error_msg, preg_replace_callback;
+
+
+final class Message
+{
+	/** variables: {value: mixed, expected: string} */
+	public const TypeMismatch = 'schema.typeMismatch';
+
+	/** variables: {value: mixed, expected: string} */
+	public const ValueOutOfRange = 'schema.valueOutOfRange';
+
+	/** variables: {value: mixed, length: int, expected: string} */
+	public const LengthOutOfRange = 'schema.lengthOutOfRange';
+
+	/** variables: {value: string, pattern: string} */
+	public const PatternMismatch = 'schema.patternMismatch';
+
+	/** variables: {value: mixed, assertion: string} */
+	public const FailedAssertion = 'schema.failedAssertion';
+
+	/** no variables */
+	public const MissingItem = 'schema.missingItem';
+
+	/** variables: {hint: string} */
+	public const UnexpectedItem = 'schema.unexpectedItem';
+
+	/** no variables */
+	public const Deprecated = 'schema.deprecated';
+
+	/** @deprecated use Message::TypeMismatch */
+	public const TYPE_MISMATCH = self::TypeMismatch;
+
+	/** @deprecated use Message::ValueOutOfRange */
+	public const VALUE_OUT_OF_RANGE = self::ValueOutOfRange;
+
+	/** @deprecated use Message::LengthOutOfRange */
+	public const LENGTH_OUT_OF_RANGE = self::LengthOutOfRange;
+
+	/** @deprecated use Message::PatternMismatch */
+	public const PATTERN_MISMATCH = self::PatternMismatch;
+
+	/** @deprecated use Message::FailedAssertion */
+	public const FAILED_ASSERTION = self::FailedAssertion;
+
+	/** @deprecated use Message::MissingItem */
+	public const MISSING_ITEM = self::MissingItem;
+
+	/** @deprecated use Message::UnexpectedItem */
+	public const UNEXPECTED_ITEM = self::UnexpectedItem;
+
+	/** @deprecated use Message::Deprecated */
+	public const DEPRECATED = self::Deprecated;
+
+	public string $message;
+	public string $code;
+
+	/** @var string[] */
+	public array $path;
+
+	/** @var string[] */
+	public array $variables;
+
+
+	public function __construct(string $message, string $code, array $path, array $variables = [])
+	{
+		$this->message = $message;
+		$this->code = $code;
+		$this->path = $path;
+		$this->variables = $variables;
+	}
+
+
+	public function toString(): string
+	{
+		$vars = $this->variables;
+		$vars['label'] = empty($vars['isKey']) ? 'item' : 'key of item';
+		$vars['path'] = $this->path
+			? "'" . implode("\u{a0}›\u{a0}", $this->path) . "'"
+			: null;
+		$vars['value'] = Helpers::formatValue($vars['value'] ?? null);
+
+		return preg_replace_callback('~( ?)%(\w+)%~', function ($m) use ($vars) {
+			[, $space, $key] = $m;
+			return $vars[$key] === null ? '' : $space . $vars[$key];
+		}, $this->message) ?? throw new Nette\InvalidStateException(preg_last_error_msg());
+	}
+}