diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 0000000..2edeafb
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+20
\ No newline at end of file
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index d01a0ef..ffe68fe 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -5,6 +5,7 @@
 use App\Models\User;
 // use Illuminate\Database\Console\Seeds\WithoutModelEvents;
 use Illuminate\Database\Seeder;
+use Illuminate\Support\Facades\Hash;
 
 class DatabaseSeeder extends Seeder
 {
@@ -14,10 +15,17 @@
     public function run(): void
     {
         // User::factory(10)->create();
-
-        User::factory()->create([
-            'name' => 'Test User',
-            'email' => 'test@example.com',
-        ]);
+        if (User::count() == 0) {
+            User::factory()->create([
+                'name' => '名字 名前',   //'First User',
+                'email' => 'miuramo@gmail.com',
+                'password' => Hash::make('change me!'),
+                'two_factor_secret' => null, // これがないとAuthentication Codeを要求される
+                // 'email_verified_at' => null,
+                // 'remember_token' => null,
+                // 'two_factor_recovery_codes' => null,
+                // 'two_factor_confirmed_at' => null,
+            ]);
+        }
     }
 }
diff --git a/package-lock.json b/package-lock.json
index 6b0390a..0c116f4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1145,9 +1145,9 @@
             }
         },
         "node_modules/axios": {
-            "version": "1.11.0",
-            "resolved": "https://registry.npmjs.org/axios/-/axios-1.11.0.tgz",
-            "integrity": "sha512-1Lx3WLFQWm3ooKDYZD1eXmoGO9fxYQjrycfHFC8P0sCfQVXyROp0p9PFWBehewBOdCwHc+f/b8I0fMto5eSfwA==",
+            "version": "1.13.2",
+            "resolved": "https://registry.npmjs.org/axios/-/axios-1.13.2.tgz",
+            "integrity": "sha512-VPk9ebNqPcy5lRGuSlKx752IlDatOjT9paPlm8A7yOuW2Fbvp4X3JznJtT4f0GzGLLiWE9W8onz51SqLYwzGaA==",
             "license": "MIT",
             "dependencies": {
                 "follow-redirects": "^1.15.6",
@@ -1480,10 +1480,13 @@
             }
         },
         "node_modules/fdir": {
-            "version": "6.4.6",
-            "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.4.6.tgz",
-            "integrity": "sha512-hiFoqpyZcfNm1yc4u8oWCf9A2c4D3QjCrks3zmoVKVxpQRzmPNar1hUJcBG2RQHvEVGDN+Jm81ZheVLAQMK6+w==",
+            "version": "6.5.0",
+            "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.5.0.tgz",
+            "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
             "license": "MIT",
+            "engines": {
+                "node": ">=12.0.0"
+            },
             "peerDependencies": {
                 "picomatch": "^3 || ^4"
             },
@@ -2281,13 +2284,13 @@
             }
         },
         "node_modules/tinyglobby": {
-            "version": "0.2.14",
-            "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.14.tgz",
-            "integrity": "sha512-tX5e7OM1HnYr2+a2C/4V0htOcSQcoSTH9KgJnVvNm5zm/cyEWKJ7j7YutsH9CxMdtOkkLFy2AHrMci9IM8IPZQ==",
+            "version": "0.2.15",
+            "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
+            "integrity": "sha512-j2Zq4NyQYG5XMST4cbs02Ak8iJUdxRM0XI5QyxXuZOzKOINmWurp3smXu3y5wDcJrptwpSjgXHzIQxR0omXljQ==",
             "license": "MIT",
             "dependencies": {
-                "fdir": "^6.4.4",
-                "picomatch": "^4.0.2"
+                "fdir": "^6.5.0",
+                "picomatch": "^4.0.3"
             },
             "engines": {
                 "node": ">=12.0.0"
@@ -2342,18 +2345,18 @@
             }
         },
         "node_modules/vite": {
-            "version": "7.0.6",
-            "resolved": "https://registry.npmjs.org/vite/-/vite-7.0.6.tgz",
-            "integrity": "sha512-MHFiOENNBd+Bd9uvc8GEsIzdkn1JxMmEeYX35tI3fv0sJBUTfW5tQsoaOwuY4KhBI09A3dUJ/DXf2yxPVPUceg==",
+            "version": "7.2.4",
+            "resolved": "https://registry.npmjs.org/vite/-/vite-7.2.4.tgz",
+            "integrity": "sha512-NL8jTlbo0Tn4dUEXEsUg8KeyG/Lkmc4Fnzb8JXN/Ykm9G4HNImjtABMJgkQoVjOBN/j2WAwDTRytdqJbZsah7w==",
             "license": "MIT",
             "peer": true,
             "dependencies": {
                 "esbuild": "^0.25.0",
-                "fdir": "^6.4.6",
+                "fdir": "^6.5.0",
                 "picomatch": "^4.0.3",
                 "postcss": "^8.5.6",
-                "rollup": "^4.40.0",
-                "tinyglobby": "^0.2.14"
+                "rollup": "^4.43.0",
+                "tinyglobby": "^0.2.15"
             },
             "bin": {
                 "vite": "bin/vite.js"