add .worktrees to gitignore and fix base.html comment

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,3 +1,4 @@
 CLAUDE.md
 .bedrockapikey
 .live-slot
+.worktrees/

padelnomics/src/padelnomics/templates/base.html

@@ -49,7 +49,7 @@
     });
   </script>
 
-  <!-- SEO defaults (child templates may override via {% block head %}) -->
+  <!-- SEO defaults (child templates may override via block head) -->
   <link rel="canonical" href="{{ config.BASE_URL }}{{ request.path }}">
   <meta property="og:title" content="{{ config.APP_NAME }}">
   <meta property="og:description" content="">