Enhance admin maintenance functionality with new endpoints and response types

- Added new DELETE endpoints for managing audit logs and disabled apps in the admin maintenance section.
- Updated existing endpoint for closed tickets to use a unified response type, `MaintenanceCleanupResponseDto`.
- Enhanced API documentation to reflect the new operations and their expected request/response formats.
- Improved frontend integration with new functions for deleting old audit logs and disabled apps, including user confirmation prompts.
- Added localization support for new maintenance actions in both Russian and English.

backend/src/PnvPanel.Api/Endpoints/AdminMaintenanceEndpoints.cs

@@ -1,6 +1,7 @@
 using PnvPanel.Api.Common;
 using PnvPanel.Application.Admin.Maintenance;
 using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
 using PnvPanel.Infrastructure.Identity;
 
 namespace PnvPanel.Api.Endpoints;
@@ -15,7 +16,13 @@ public static class AdminMaintenanceEndpoints
 
         admin
             .MapDelete("/tickets/closed", DeleteClosedTickets)
-            .Produces<DeleteClosedTicketsResponseDto>();
+            .Produces<MaintenanceCleanupResponseDto>();
+        admin
+            .MapDelete("/audit-logs", DeleteOldAuditLogs)
+            .Produces<MaintenanceCleanupResponseDto>();
+        admin
+            .MapDelete("/apps/disabled", DeleteDisabledApps)
+            .Produces<MaintenanceCleanupResponseDto>();
 
         return app;
     }
@@ -26,11 +33,35 @@ public static class AdminMaintenanceEndpoints
     )
     {
         var result = await sender.Send(new DeleteClosedTicketsCommand(), cancellationToken);
-        if (!result.IsSuccess)
-            return result.ToHttpResult();
-
-        return Results.Ok(new DeleteClosedTicketsResponseDto(result.Value));
+        return ToResponse(result);
     }
+
+    private static async Task<IResult> DeleteOldAuditLogs(
+        int olderThanDays,
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        var result = await sender.Send(
+            new DeleteOldAuditLogsCommand(olderThanDays),
+            cancellationToken
+        );
+        return ToResponse(result);
+    }
+
+    private static async Task<IResult> DeleteDisabledApps(
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        var result = await sender.Send(new DeleteDisabledAppsCommand(), cancellationToken);
+        return ToResponse(result);
+    }
+
+    private static IResult ToResponse(Result<int> result) =>
+        result.IsSuccess
+            ? Results.Ok(new MaintenanceCleanupResponseDto(result.Value))
+            : result.ToHttpResult();
 }
 
-public sealed record DeleteClosedTicketsResponseDto(int DeletedCount);
+public sealed record MaintenanceCleanupResponseDto(int DeletedCount);

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteClosedTicketsCommandHandler.cs

@@ -59,7 +59,7 @@ public sealed class DeleteClosedTicketsCommandHandler(
                 "ClosedTicketsCleanedUp",
                 "SupportTicket",
                 "bulk",
-                metadata: $"count={ticketIds.Count}",
+                metadata: $"{{\"count\":{ticketIds.Count}}}",
                 AuditSource.Web
             )
         );

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteDisabledAppsCommand.cs

@@ -0,0 +1,7 @@
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+
+namespace PnvPanel.Application.Admin.Maintenance;
+
+/// <summary>Удаляет все ClientApp с IsEnabled = false. Value — число удалённых записей.</summary>
+public sealed record DeleteDisabledAppsCommand : ICommand<Result<int>>;

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteDisabledAppsCommandHandler.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using PnvPanel.Application.Auth;
+using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+using PnvPanel.Domain.Audit;
+
+namespace PnvPanel.Application.Admin.Maintenance;
+
+public sealed class DeleteDisabledAppsCommandHandler(
+    IAppDbContext dbContext,
+    ICurrentUser currentUser
+) : ICommandHandler<DeleteDisabledAppsCommand, Result<int>>
+{
+    public async Task<Result<int>> Handle(
+        DeleteDisabledAppsCommand command,
+        CancellationToken cancellationToken
+    )
+    {
+        if (currentUser.UserId is not { } adminId)
+            return Result.Failure<int>(AuthErrors.Unauthorized);
+
+        var apps = await dbContext
+            .ClientApps.Where(a => !a.IsEnabled)
+            .ToListAsync(cancellationToken);
+
+        if (apps.Count == 0)
+            return Result.Success(0);
+
+        dbContext.ClientApps.RemoveRange(apps);
+
+        dbContext.AuditLogs.Add(
+            AuditLog.Create(
+                adminId,
+                "DisabledAppsCleanedUp",
+                "ClientApp",
+                "bulk",
+                metadata: $"{{\"count\":{apps.Count}}}",
+                AuditSource.Web
+            )
+        );
+
+        return Result.Success(apps.Count);
+    }
+}

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteOldAuditLogsCommand.cs

@@ -0,0 +1,7 @@
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+
+namespace PnvPanel.Application.Admin.Maintenance;
+
+/// <summary>Удаляет записи AuditLog старше OlderThanDays дней. Value — число удалённых записей.</summary>
+public sealed record DeleteOldAuditLogsCommand(int OlderThanDays) : ICommand<Result<int>>;

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteOldAuditLogsCommandHandler.cs

@@ -0,0 +1,49 @@
+using Microsoft.EntityFrameworkCore;
+using PnvPanel.Application.Auth;
+using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Messaging;
+using PnvPanel.Application.Common.Models;
+using PnvPanel.Domain.Audit;
+
+namespace PnvPanel.Application.Admin.Maintenance;
+
+public sealed class DeleteOldAuditLogsCommandHandler(
+    IAppDbContext dbContext,
+    ICurrentUser currentUser
+) : ICommandHandler<DeleteOldAuditLogsCommand, Result<int>>
+{
+    public async Task<Result<int>> Handle(
+        DeleteOldAuditLogsCommand command,
+        CancellationToken cancellationToken
+    )
+    {
+        if (currentUser.UserId is not { } adminId)
+            return Result.Failure<int>(AuthErrors.Unauthorized);
+
+        var threshold = DateTimeOffset.UtcNow.AddDays(-command.OlderThanDays);
+
+        var logs = await dbContext
+            .AuditLogs.Where(l => l.CreatedAt < threshold)
+            .ToListAsync(cancellationToken);
+
+        if (logs.Count == 0)
+            return Result.Success(0);
+
+        dbContext.AuditLogs.RemoveRange(logs);
+
+        // Новая запись создаётся уже после выборки старых — её CreatedAt = UtcNow не попадает
+        // под тот же порог и не удаляется этой же операцией.
+        dbContext.AuditLogs.Add(
+            AuditLog.Create(
+                adminId,
+                "AuditLogsCleanedUp",
+                "AuditLog",
+                "bulk",
+                metadata: $"{{\"count\":{logs.Count},\"olderThanDays\":{command.OlderThanDays}}}",
+                AuditSource.Web
+            )
+        );
+
+        return Result.Success(logs.Count);
+    }
+}

backend/src/PnvPanel.Application/Admin/Maintenance/DeleteOldAuditLogsCommandValidator.cs

@@ -0,0 +1,12 @@
+using FluentValidation;
+
+namespace PnvPanel.Application.Admin.Maintenance;
+
+public sealed class DeleteOldAuditLogsCommandValidator
+    : AbstractValidator<DeleteOldAuditLogsCommand>
+{
+    public DeleteOldAuditLogsCommandValidator()
+    {
+        RuleFor(x => x.OlderThanDays).GreaterThanOrEqualTo(1).LessThanOrEqualTo(3650);
+    }
+}