Enhance inbound management by removing MaxClients property

- Removed the MaxClients property from Inbound-related data models, including InboundDto and PublishInboundCommand.
- Updated related methods and handlers to reflect the removal of MaxClients, ensuring consistent behavior across the application.
- Adjusted API documentation and frontend components to remove references to MaxClients, streamlining the inbound publishing process.
- Enhanced logging in command handlers to handle node unavailability scenarios during user actions.
- Improved database schema and migrations to align with the updated data model.

backend/tests/PnvPanel.Application.Tests/Configs/Revoke/RevokeVpnConfigCommandHandlerTests.cs

@@ -1,5 +1,7 @@
+using Microsoft.Extensions.Logging;
 using NSubstitute;
 using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Models;
 using PnvPanel.Application.Configs;
 using PnvPanel.Application.Configs.Revoke;
 using PnvPanel.Application.Tests.TestSupport;
@@ -14,6 +16,9 @@ public class RevokeVpnConfigCommandHandlerTests
 {
     private readonly IXuiPanelGateway _gateway = Substitute.For<IXuiPanelGateway>();
     private readonly IRealtimeNotifier _notifier = Substitute.For<IRealtimeNotifier>();
+    private readonly ILogger<RevokeVpnConfigCommandHandler> _logger = Substitute.For<
+        ILogger<RevokeVpnConfigCommandHandler>
+    >();
 
     [Fact]
     public async Task Handle_WhenActiveConfigOwnedByUser_RevokesRemovesRemoteClientAndNotifies()
@@ -36,11 +41,22 @@ public class RevokeVpnConfigCommandHandlerTests
         dbContext.VpnConfigs.Add(config);
         await dbContext.SaveChangesAsync(CancellationToken.None);
 
+        _gateway
+            .RemoveClientAsync(
+                Arg.Any<PnvPanel.Domain.Nodes.Node>(),
+                Arg.Any<string>(),
+                Arg.Any<string>(),
+                Arg.Any<VpnProtocol>(),
+                Arg.Any<CancellationToken>()
+            )
+            .Returns(Result.Success());
+
         var handler = new RevokeVpnConfigCommandHandler(
             dbContext,
             _gateway,
             _notifier,
-            FakeCurrentUser.Authenticated(userId)
+            FakeCurrentUser.Authenticated(userId),
+            _logger
         );
 
         var result = await handler.Handle(
@@ -87,7 +103,8 @@ public class RevokeVpnConfigCommandHandlerTests
             dbContext,
             _gateway,
             _notifier,
-            FakeCurrentUser.Authenticated(userId)
+            FakeCurrentUser.Authenticated(userId),
+            _logger
         );
 
         var result = await handler.Handle(
@@ -117,7 +134,8 @@ public class RevokeVpnConfigCommandHandlerTests
             dbContext,
             _gateway,
             _notifier,
-            FakeCurrentUser.Authenticated(userId)
+            FakeCurrentUser.Authenticated(userId),
+            _logger
         );
 
         var result = await handler.Handle(
@@ -138,7 +156,8 @@ public class RevokeVpnConfigCommandHandlerTests
             dbContext,
             _gateway,
             _notifier,
-            FakeCurrentUser.Anonymous()
+            FakeCurrentUser.Anonymous(),
+            _logger
         );
 
         var result = await handler.Handle(