fix: restore admin login submit handler

TaxBaik.Web/Components/Admin/Pages/Login.razor

@@ -12,23 +12,23 @@
     <MudPaper Class="pa-8" Elevation="3" Style="width: 100%; max-width: 400px;">
         <MudText Typo="Typo.h4" Class="mb-6 text-center">관리자 로그인</MudText>
 
-        <EditForm Model="model" OnValidSubmit="HandleLogin">
-            <DataAnnotationsValidator />
+        <form id="admin-login-form">
             <input class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
                    style="width: 100%; min-height: 56px; padding: 16px 14px;"
                    placeholder="사용자명"
                    autocomplete="username"
-                   @bind="model.Username" />
+                   name="username"
+                   value="@model.Username" />
 
             <input type="password"
                    class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
                    style="width: 100%; min-height: 56px; padding: 16px 14px;"
                    placeholder="비밀번호"
                    autocomplete="current-password"
-                   @bind="model.Password" />
+                   name="password" />
 
             <div class="mb-4">
-                <input class="mud-checkbox" type="checkbox" @bind="model.RememberMe" />
+                <input class="mud-checkbox" type="checkbox" name="rememberMe" />
                 <label style="margin-left: 8px; cursor: pointer;">아이디 저장</label>
             </div>
 
@@ -39,12 +39,12 @@
                     style="width: 100%; min-height: 52px; border: 0; border-radius: 4px; color: white;">
                 <span>로그인</span>
             </button>
-        </EditForm>
+        </form>
     </MudPaper>
 </MudContainer>
 
 @code {
-    private LoginModel model = new();
+    private readonly LoginModel model = new();
     private const string RememberedUsernameKey = "admin-remembered-username";
 
     protected override async Task OnInitializedAsync()
@@ -69,42 +69,10 @@
             await Js.InvokeVoidAsync("taxbaikAdminSession.syncRouteClass");
     }
 
-    private async Task HandleLogin()
-    {
-        var request = new { model.Username, model.Password };
-        var response = await ApiClient.PostAsync<LoginResponse>("auth/login", request);
-
-        if (response?.AccessToken == null || response?.RefreshToken == null)
-        {
-            return;
-        }
-
-        if (model.RememberMe)
-        {
-            await LocalStorageService.SetItemAsStringAsync(RememberedUsernameKey, model.Username);
-        }
-        else
-        {
-            await LocalStorageService.RemoveItemAsync(RememberedUsernameKey);
-        }
-
-        await Js.InvokeVoidAsync("localStorage.setItem", "accessToken", response.AccessToken);
-        await Js.InvokeVoidAsync("localStorage.setItem", "refreshToken", response.RefreshToken);
-        await Js.InvokeVoidAsync("localStorage.setItem", "tokenExpiry", DateTimeOffset.UtcNow.AddSeconds(response.ExpiresIn).ToUnixTimeMilliseconds().ToString());
-        await Js.InvokeVoidAsync("window.location.assign", "/taxbaik/admin/dashboard");
-    }
-
     private class LoginModel
     {
         public string Username { get; set; } = "";
         public string Password { get; set; } = "";
         public bool RememberMe { get; set; }
     }
-
-    private class LoginResponse
-    {
-        public string AccessToken { get; set; } = "";
-        public string RefreshToken { get; set; } = "";
-        public int ExpiresIn { get; set; }
-    }
 }