Fix column name in malformed lists scanner

Changed 'url' to 'page' to match actual table schema
in preciosunitarios_seo.datos_seo_pagina

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

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

Shared/Infrastructure/Scripts/scan-malformed-lists.php

@@ -174,7 +174,7 @@ echo "Iniciando análisis...\n";
 echo "─────────────────────────────────────────────\n";
 
 while ($offset < $total) {
-    $query = "SELECT id, url, html FROM datos_seo_pagina
+    $query = "SELECT id, page, html FROM datos_seo_pagina
               WHERE html IS NOT NULL AND html != ''
               ORDER BY id
               LIMIT {$batch_size} OFFSET {$offset}";
@@ -189,7 +189,7 @@ while ($offset < $total) {
     while ($row = $result->fetch_assoc()) {
         $processed++;
         $id = $row['id'];
-        $url = $row['url'] ?? 'N/A';
+        $url = $row['page'] ?? 'N/A';
         $html = $row['html'];
 
         $issues = analyzeMalformedLists($html, $malformed_patterns);