feat(adsense): agregar mas opciones de formato y altura para Rail Ads

- Formatos: skyscraper (160x600), wide-skyscraper (160x800), half-page (300x600), large-skyscraper (300x1050)
- Distancia desde arriba: 150, 200, 300 (default), 400, 500, 700px
- Cambiar rail_top_offset de text a select con opciones predefinidas

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

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

Public/AdsensePlacement/Infrastructure/Ui/AdsensePlacementRenderer.php

@@ -291,12 +291,17 @@ final class AdsensePlacementRenderer
         $leftEnabled = ($settings['behavior']['rail_left_enabled'] ?? true) === true;
         $rightEnabled = ($settings['behavior']['rail_right_enabled'] ?? true) === true;
         $format = $settings['behavior']['rail_format'] ?? 'skyscraper';
-        $topOffset = (int)($settings['behavior']['rail_top_offset'] ?? 150);
+        $topOffset = (int)($settings['behavior']['rail_top_offset'] ?? 300);
         $delayEnabled = ($settings['forms']['delay_enabled'] ?? true) === true;
 
         // Dimensiones segun formato
-        $width = $format === 'half-page' ? 300 : 160;
-        $height = 600;
+        // skyscraper: 160x600, wide-skyscraper: 160x800, half-page: 300x600, large-skyscraper: 300x1050
+        [$width, $height] = match($format) {
+            'wide-skyscraper' => [160, 800],
+            'half-page' => [300, 600],
+            'large-skyscraper' => [300, 1050],
+            default => [160, 600], // skyscraper
+        };
 
         $scriptType = $delayEnabled ? 'text/plain' : 'text/javascript';
         $dataAttr = $delayEnabled ? ' data-adsense-push' : '';