Add template preview functionality: Introduced TemplatePreviewController and TemplatePreviewService for rendering dynamic previews of header, footer, and section templates. Updated form schemas to include preview components and enhanced real-time content updates. Added configuration for template assets and integrated preview functionality into the admin panel.

config/template-preview.php

@@ -0,0 +1,54 @@
+<?php
+
+return [
+    /*
+    |--------------------------------------------------------------------------
+    | Template Preview Asset Configuration
+    |--------------------------------------------------------------------------
+    |
+    | This configuration file contains all asset paths that should be loaded
+    | in the template preview iframe. These assets are used to ensure the
+    | preview displays correctly with the same styling and scripts as the
+    | actual site.
+    |
+    | You can override these values in Settings table if needed, or modify
+    | this config file for project-specific asset paths.
+    |
+    */
+
+    // CSS Assets (Stylesheets)
+    'css' => [
+        'style' => 'html/style.css',
+        'unicons' => 'assets/fonts/unicons/unicons.css',
+        'plugins' => 'assets/css/plugins.css',
+        'colors' => 'assets/css/colors/grape.css',
+        'fonts' => 'assets/css/fonts/urbanist.css',
+    ],
+
+    // JavaScript Assets
+    'js' => [
+        'plugins' => 'assets/js/plugins.js',
+        'theme' => 'assets/js/theme.js',
+    ],
+
+    // Additional meta tags and head content
+    'meta' => [
+        'viewport' => 'width=device-width, initial-scale=1',
+        'charset' => 'utf-8',
+    ],
+
+    // Whether to load assets from Settings table (overrides config)
+    'use_settings_override' => false,
+
+    // Settings keys for asset paths (if use_settings_override is true)
+    'settings_keys' => [
+        'css_style' => 'template_preview_css_style',
+        'css_unicons' => 'template_preview_css_unicons',
+        'css_plugins' => 'template_preview_css_plugins',
+        'css_colors' => 'template_preview_css_colors',
+        'css_fonts' => 'template_preview_css_fonts',
+        'js_plugins' => 'template_preview_js_plugins',
+        'js_theme' => 'template_preview_js_theme',
+    ],
+];
+