implemented step 15 by Gemini

- Rendering HTML

src/Services/Renderer.php

@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services;
+
+use Exception;
+
+class Renderer
+{
+	private FileStorage $storage;
+	private string $exportsPath;
+	private string $templatesPath;
+
+	public function __construct()
+	{
+		$this->storage = new FileStorage();
+		$this->exportsPath = realpath(__DIR__ . '/../../exports');
+		$this->templatesPath = realpath(__DIR__ . '/../Templates');
+	}
+
+	/**
+	 * Renders a complete static website for a project.
+	 */
+	public function render(string $projectId): bool
+	{
+		$projectData = $this->storage->get("projects/{$projectId}.json");
+		if (!$projectData || empty($projectData['content']['generated'])) {
+			return false;
+		}
+
+		$projectExportDir = $this->exportsPath . DIRECTORY_SEPARATOR . $projectId;
+		$assetsDir = $projectExportDir . DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'css';
+
+		// 1. Create directory structure
+		if (!is_dir($assetsDir)) {
+			mkdir($assetsDir, 0777, true);
+		}
+
+		// 2. Copy static assets
+		$siteCssSource = $this->templatesPath . DIRECTORY_SEPARATOR . 'css' . DIRECTORY_SEPARATOR . 'site.css';
+		copy($siteCssSource, $assetsDir . DIRECTORY_SEPARATOR . 'site.css');
+
+		// 3. Render HTML
+		$html = $this->renderTemplate('base', [
+			'project' => $projectData,
+			'content' => '<!-- Final content sections will go here -->'
+		]);
+
+		// 4. Save to exports
+		return file_put_contents($projectExportDir . DIRECTORY_SEPARATOR . 'index.html', $html) !== false;
+	}
+
+	/**
+	 * Internal helper to render a PHP template with variables.
+	 */
+	private function renderTemplate(string $templateName, array $vars = []): string
+	{
+		$templateFile = $this->templatesPath . DIRECTORY_SEPARATOR . $templateName . '.php';
+		if (!file_exists($templateFile)) {
+			throw new Exception("Template not found: $templateName");
+		}
+
+		extract($vars);
+		ob_start();
+		include $templateFile;
+		return ob_get_clean();
+	}
+}