feat(visibility): sistema de visibilidad por tipo de página

- Añadir PageVisibility use case y repositorio
- Implementar PageTypeDetector para detectar home/single/page/archive
- Actualizar FieldMappers con soporte show_on_[page_type]
- Extender FormBuilders con UI de visibilidad por página
- Refactorizar Renderers para evaluar visibilidad dinámica
- Limpiar schemas removiendo campos de visibilidad legacy
- Añadir MigrationCommand para migrar configuraciones existentes
- Implementar adsense-loader.js para carga lazy de ads
- Actualizar front-page.php con nueva estructura
- Extender DIContainer con nuevos servicios

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

minify-css.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * Simple CSS Minifier Script
+ * Run from command line: php minify-css.php
+ */
+
+function minify_css($css) {
+    // Remove comments
+    $css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css);
+
+    // Remove space after colons
+    $css = str_replace(': ', ':', $css);
+
+    // Remove whitespace
+    $css = str_replace(array("\r\n", "\r", "\n", "\t", '  ', '    ', '    '), '', $css);
+
+    // Remove space before and after specific characters
+    $css = preg_replace('/\s*([{};,>+~])\s*/', '$1', $css);
+
+    // Remove last semicolon before closing brace
+    $css = str_replace(';}', '}', $css);
+
+    // Trim
+    $css = trim($css);
+
+    return $css;
+}
+
+$files = [
+    'Assets/Css/css-global-accessibility.css' => 'Assets/Css/css-global-accessibility.min.css',
+    'Assets/Css/style.css' => 'Assets/Css/style.min.css',
+];
+
+$base_path = __DIR__ . '/';
+
+foreach ($files as $source => $dest) {
+    $source_path = $base_path . $source;
+    $dest_path = $base_path . $dest;
+
+    if (file_exists($source_path)) {
+        $css = file_get_contents($source_path);
+        $minified = minify_css($css);
+
+        file_put_contents($dest_path, $minified);
+
+        $original_size = strlen($css);
+        $minified_size = strlen($minified);
+        $savings = $original_size - $minified_size;
+        $percent = round(($savings / $original_size) * 100, 1);
+
+        echo "Minified: $source\n";
+        echo "  Original: " . number_format($original_size) . " bytes\n";
+        echo "  Minified: " . number_format($minified_size) . " bytes\n";
+        echo "  Savings: " . number_format($savings) . " bytes ($percent%)\n\n";
+    } else {
+        echo "File not found: $source\n";
+    }
+}
+
+echo "Done!\n";