ajout envoi smtp (paramètres, test envois, envoi à 1 participant). protège vue mot de passe

- ajout filtre page statistiques

package.json

@@ -17,12 +17,15 @@
     "@radix-ui/react-progress": "^1.1.7",
     "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-slot": "^1.2.3",
+    "@radix-ui/react-switch": "^1.2.6",
     "@radix-ui/react-tabs": "^1.1.13",
     "@supabase/supabase-js": "^2.56.0",
+    "@types/nodemailer": "^7.0.1",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.541.0",
     "next": "15.5.0",
+    "nodemailer": "^7.0.5",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "tailwind-merge": "^3.3.1"