Refactor project files for improved readability and structure

- Cleaned up whitespace in Directory.Build.props and Directory.Packages.props for consistency.
- Reformatted project file references in PnvPanel.Api.csproj for better clarity.
- Enhanced code readability in various endpoint files by adjusting line breaks and indentation.
- Standardized method signatures and improved formatting in ResultExtensions and multiple endpoint classes for better maintainability.

backend/tests/PnvPanel.IntegrationTests/TestSupport/AuthTestHelper.cs

@@ -4,22 +4,46 @@ namespace PnvPanel.IntegrationTests.TestSupport;
 
 public static class AuthTestHelper
 {
-    public sealed record CurrentUserResponse(Guid Id, string UserName, string Role, bool IsActivated, bool TelegramLinked);
+    public sealed record CurrentUserResponse(
+        Guid Id,
+        string UserName,
+        string Role,
+        bool IsActivated,
+        bool TelegramLinked
+    );
 
-    public sealed record LoginResponse(string AccessToken, DateTimeOffset ExpiresAt, CurrentUserResponse User);
+    public sealed record LoginResponse(
+        string AccessToken,
+        DateTimeOffset ExpiresAt,
+        CurrentUserResponse User
+    );
 
-    public static async Task<(Guid Id, string AccessToken)> RegisterAndLoginAsync(HttpClient client, string userName, string password)
+    public static async Task<(Guid Id, string AccessToken)> RegisterAndLoginAsync(
+        HttpClient client,
+        string userName,
+        string password
+    )
     {
-        var registerResponse = await client.PostJsonAsync("/api/auth/register", new { userName, password });
+        var registerResponse = await client.PostJsonAsync(
+            "/api/auth/register",
+            new { userName, password }
+        );
         registerResponse.EnsureSuccessStatusCode();
 
         var (id, accessToken) = await LoginAsync(client, userName, password);
         return (id, accessToken);
     }
 
-    public static async Task<(Guid Id, string AccessToken)> LoginAsync(HttpClient client, string userName, string password)
+    public static async Task<(Guid Id, string AccessToken)> LoginAsync(
+        HttpClient client,
+        string userName,
+        string password
+    )
     {
-        var loginResponse = await client.PostJsonAsync("/api/auth/login", new { userName, password });
+        var loginResponse = await client.PostJsonAsync(
+            "/api/auth/login",
+            new { userName, password }
+        );
         loginResponse.EnsureSuccessStatusCode();
         var login = await loginResponse.ReadAsAsync<LoginResponse>();
         return (login!.User.Id, login.AccessToken);
@@ -27,7 +51,11 @@ public static class AuthTestHelper
 
     public static async Task<string> LoginAsAdminAsync(HttpClient client)
     {
-        var (_, accessToken) = await LoginAsync(client, PnvPanelWebApplicationFactory.AdminUserName, PnvPanelWebApplicationFactory.AdminPassword);
+        var (_, accessToken) = await LoginAsync(
+            client,
+            PnvPanelWebApplicationFactory.AdminUserName,
+            PnvPanelWebApplicationFactory.AdminPassword
+        );
         return accessToken;
     }
 }