Add IsAvailable property to Inbound and update related logic

- Introduced a new boolean property, `IsAvailable`, to the `Inbound` entity to track the availability status of inbounds based on synchronization results.
- Updated the `SyncNodeCommandHandler` to mark inbounds as unavailable if they are not present in the latest synchronization but have existing configurations, preventing their deletion.
- Enhanced the `MarkUnavailable` method to set both `IsAvailable` and `IsPublished` to false, reflecting the new status accurately.
- Modified the frontend components to display the availability status of inbounds, ensuring users are informed of their current state.
- Updated tests to cover the new behavior regarding inbound availability and its impact on revocation processes.

backend/src/PnvPanel.Application/Admin/Inbounds/InboundDto.cs

@@ -10,6 +10,7 @@ public sealed record InboundDto(
     string Remark,
     int Port,
     bool IsPublished,
+    bool IsAvailable,
     string? DisplayName,
     IReadOnlyList<Guid> AllowedRoleIds,
     DateTimeOffset? LastSyncAt
@@ -24,6 +25,7 @@ public sealed record InboundDto(
             inbound.Remark,
             inbound.Port,
             inbound.IsPublished,
+            inbound.IsAvailable,
             inbound.DisplayName,
             inbound.AllowedRoleIds,
             inbound.LastSyncAt

backend/src/PnvPanel.Application/Admin/Nodes/SyncNodeCommandHandler.cs

@@ -50,15 +50,30 @@ public sealed class SyncNodeCommandHandler(IAppDbContext dbContext, IXuiPanelGat
                 );
         }
 
-        // Inbound, пропавший на панели, снимаем с публикации (не удаляем — реконсиляция дрейфа,
-        // см. architecture.md); новые конфиги на нём создать будет нельзя, старые не трогаем.
+        // Inbound, пропавший на панели: если по нему нет конфигов — запись просто мусор, удаляем
+        // (иначе она копится дублем при пересоздании инбаунда на той же панели под новым
+        // RemoteInboundId — 3x-ui id не переиспользует). Если конфиги есть — удалить нельзя (FK),
+        // помечаем недоступной: новые конфиги на нём создать нельзя, Revoke не бьёт в мёртвую панель.
         var remoteIds = remoteResult.Value.Select(r => r.RemoteInboundId).ToHashSet();
-        foreach (
-            var stale in existing.Where(i =>
-                i.IsPublished && !remoteIds.Contains(i.RemoteInboundId)
-            )
-        )
-            stale.Unpublish();
+        var stale = existing.Where(i => !remoteIds.Contains(i.RemoteInboundId)).ToList();
+        if (stale.Count > 0)
+        {
+            var staleIds = stale.Select(i => i.Id).ToList();
+            var staleIdsWithConfigs = await dbContext
+                .VpnConfigs.Where(c => staleIds.Contains(c.InboundId))
+                .Select(c => c.InboundId)
+                .Distinct()
+                .ToListAsync(cancellationToken);
+            var withConfigs = staleIdsWithConfigs.ToHashSet();
+
+            foreach (var inbound in stale)
+            {
+                if (withConfigs.Contains(inbound.Id))
+                    inbound.MarkUnavailable();
+                else
+                    dbContext.Inbounds.Remove(inbound);
+            }
+        }
 
         node.UpdateStatus(NodeStatus.Online);
         node.MarkSynced();

backend/src/PnvPanel.Application/Configs/Revoke/RevokeVpnConfigCommandHandler.cs

@@ -43,7 +43,9 @@ public sealed class RevokeVpnConfigCommandHandler(
                 .Nodes.AsNoTracking()
                 .FirstOrDefaultAsync(n => n.Id == inbound.NodeId, cancellationToken);
 
-        if (inbound is not null && node is not null)
+        // inbound.IsAvailable=false значит синхронизация уже подтвердила, что его нет на панели —
+        // звать RemoveClientAsync незачем (и оно всё равно упадёт: инбаунда для клиента не существует).
+        if (inbound is not null && inbound.IsAvailable && node is not null)
         {
             var removeResult = await gateway.RemoveClientAsync(
                 node,

backend/src/PnvPanel.Domain/Inbounds/Inbound.cs

@@ -16,6 +16,7 @@ public sealed class Inbound : Entity
     public string Remark { get; private set; } = string.Empty;
     public int Port { get; private set; }
     public bool IsPublished { get; private set; }
+    public bool IsAvailable { get; private set; } = true;
     public string? DisplayName { get; private set; }
     public IReadOnlyList<Guid> AllowedRoleIds { get; private set; } = [];
     public DateTimeOffset? LastSyncAt { get; private set; }
@@ -39,6 +40,7 @@ public sealed class Inbound : Entity
             Remark = remark,
             Port = port,
             IsPublished = false,
+            IsAvailable = true,
             LastSyncAt = DateTimeOffset.UtcNow,
         };
     }
@@ -59,4 +61,15 @@ public sealed class Inbound : Entity
     }
 
     public void Unpublish() => IsPublished = false;
+
+    /// <summary>
+    /// Инбаунд пропал на панели (не пришёл в очередной синхронизации), но по нему есть конфиги —
+    /// удалить запись нельзя (FK), поэтому помечаем недоступной вместо тихого "не опубликован":
+    /// UI показывает явный статус, а Revoke пропускает обращение к панели как заведомо мёртвое.
+    /// </summary>
+    public void MarkUnavailable()
+    {
+        IsAvailable = false;
+        IsPublished = false;
+    }
 }

backend/src/PnvPanel.Infrastructure/Persistence/Migrations/20260718210336_AddInboundIsAvailable.Designer.cs

@@ -0,0 +1,964 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PnvPanel.Infrastructure.Persistence;
+
+#nullable disable
+
+namespace PnvPanel.Infrastructure.Persistence.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260718210336_AddInboundIsAvailable")]
+    partial class AddInboundIsAvailable
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.9")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<System.Guid>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("RoleId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<System.Guid>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<System.Guid>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<System.Guid>", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("RoleId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<System.Guid>", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Activation.ActivationRequest", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Comment")
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTimeOffset?>("DecidedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid?>("DecidedBy")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("RejectionReason")
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId", "Status");
+
+                    b.ToTable("ActivationRequests", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Apps.ClientApp", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(300)
+                        .HasColumnType("character varying(300)");
+
+                    b.Property<string>("DownloadUrl")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<string>("IconUrl")
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<bool>("IsEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsRecommended")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("OperatingSystem")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<int>("SortOrder")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("ClientApps", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Audit.AuditLog", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("Action")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<Guid?>("ActorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Metadata")
+                        .HasColumnType("jsonb");
+
+                    b.Property<string>("Source")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("TargetId")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("TargetType")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreatedAt");
+
+                    b.ToTable("AuditLogs", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Configs.TrafficSample", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<Guid>("ConfigId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long>("DownBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTimeOffset>("Timestamp")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("UpBytes")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConfigId", "Timestamp");
+
+                    b.ToTable("TrafficSamples", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Configs.VpnConfig", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ClientEmail")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<string>("ClientExternalId")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTimeOffset?>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("InboundId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Label")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<DateTimeOffset?>("LastSyncAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Protocol")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("SubscriptionToken")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<long>("UsedDownBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<long>("UsedUpBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InboundId");
+
+                    b.HasIndex("SubscriptionToken")
+                        .IsUnique();
+
+                    b.HasIndex("UserId", "Status");
+
+                    b.ToTable("VpnConfigs", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Inbounds.Inbound", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.PrimitiveCollection<Guid[]>("AllowedRoleIds")
+                        .IsRequired()
+                        .HasColumnType("uuid[]");
+
+                    b.Property<string>("DisplayName")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<bool>("IsAvailable")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsPublished")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTimeOffset?>("LastSyncAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("NodeId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Port")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Protocol")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("Remark")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<string>("RemoteInboundId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NodeId", "RemoteInboundId")
+                        .IsUnique();
+
+                    b.ToTable("Inbounds", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Instructions.InstructionIntro", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasMaxLength(20000)
+                        .HasColumnType("character varying(20000)");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("InstructionIntros", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Instructions.InstructionTab", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasMaxLength(20000)
+                        .HasColumnType("character varying(20000)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("SortOrder")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<DateTimeOffset?>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SortOrder");
+
+                    b.ToTable("InstructionTabs", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.News.NewsPost", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasMaxLength(20000)
+                        .HasColumnType("character varying(20000)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTimeOffset?>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreatedAt");
+
+                    b.ToTable("NewsPosts", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Nodes.Node", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("BaseAddress")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("character varying(500)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("IsEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTimeOffset?>("LastSyncAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Location")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Nodes", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Pricing.PricingSettings", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int?>("PricePerConfigPerHalfYear")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("PricePerConfigPerQuarter")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("PricePerConfigPerYear")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTimeOffset>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PricingSettings", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Support.SupportTicket", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("ProposedMaxConfigs")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("ProposedMaxIpLimit")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ProposedRoleName")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<Guid?>("RequestedRoleId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("Type")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Type", "Status");
+
+                    b.HasIndex("UserId", "Status");
+
+                    b.ToTable("SupportTickets", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Support.TicketAttachment", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("CommentId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FileName")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)");
+
+                    b.Property<long>("SizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("StoredFileName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CommentId");
+
+                    b.HasIndex("StoredFileName")
+                        .IsUnique();
+
+                    b.ToTable("TicketAttachments", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Support.TicketComment", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("AuthorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasMaxLength(4000)
+                        .HasColumnType("character varying(4000)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("TicketId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TicketId", "CreatedAt");
+
+                    b.ToTable("TicketComments", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Telegram.TelegramLinkToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTimeOffset?>("ConsumedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Token")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Token")
+                        .IsUnique();
+
+                    b.ToTable("TelegramLinkTokens", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Telegram.TelegramLoginRequest", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Context")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("TelegramLoginRequests", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Infrastructure.Identity.AppRole", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsSystem")
+                        .HasColumnType("boolean");
+
+                    b.Property<int>("MaxConfigs")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("MaxIpLimit")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Infrastructure.Identity.AppUser", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTimeOffset?>("ActivatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid?>("ActivatedBy")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsActivated")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsBlocked")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("text");
+
+                    b.Property<string>("SubscriptionToken")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTimeOffset?>("TelegramLinkedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("TelegramUserId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("TelegramUsername")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.HasIndex("SubscriptionToken")
+                        .IsUnique();
+
+                    b.HasIndex("TelegramUserId")
+                        .IsUnique();
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("PnvPanel.Infrastructure.Identity.RefreshToken", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTimeOffset>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ReplacedByTokenHash")
+                        .HasColumnType("text");
+
+                    b.Property<DateTimeOffset?>("RevokedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("TokenHash")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TokenHash")
+                        .IsUnique();
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("RefreshTokens", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<System.Guid>", b =>
+                {
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<System.Guid>", b =>
+                {
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<System.Guid>", b =>
+                {
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<System.Guid>", b =>
+                {
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<System.Guid>", b =>
+                {
+                    b.HasOne("PnvPanel.Infrastructure.Identity.AppUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("PnvPanel.Domain.Nodes.Node", b =>
+                {
+                    b.OwnsOne("PnvPanel.Domain.Nodes.NodeCredentials", "Credentials", b1 =>
+                        {
+                            b1.Property<Guid>("NodeId")
+                                .HasColumnType("uuid");
+
+                            b1.Property<string>("ProtectedPassword")
+                                .IsRequired()
+                                .HasColumnType("text")
+                                .HasColumnName("CredentialsProtectedPassword");
+
+                            b1.Property<string>("Username")
+                                .IsRequired()
+                                .HasMaxLength(200)
+                                .HasColumnType("character varying(200)")
+                                .HasColumnName("CredentialsUsername");
+
+                            b1.HasKey("NodeId");
+
+                            b1.ToTable("Nodes");
+
+                            b1.WithOwner()
+                                .HasForeignKey("NodeId");
+                        });
+
+                    b.Navigation("Credentials")
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/src/PnvPanel.Infrastructure/Persistence/Migrations/20260718210336_AddInboundIsAvailable.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PnvPanel.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddInboundIsAvailable : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsAvailable",
+                table: "Inbounds",
+                type: "boolean",
+                nullable: false,
+                defaultValue: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsAvailable",
+                table: "Inbounds");
+        }
+    }
+}

backend/src/PnvPanel.Infrastructure/Persistence/Migrations/AppDbContextModelSnapshot.cs

@@ -359,6 +359,9 @@ namespace PnvPanel.Infrastructure.Persistence.Migrations
                         .HasMaxLength(100)
                         .HasColumnType("character varying(100)");
 
+                    b.Property<bool>("IsAvailable")
+                        .HasColumnType("boolean");
+
                     b.Property<bool>("IsPublished")
                         .HasColumnType("boolean");
 

backend/tests/PnvPanel.Application.Tests/Admin/Nodes/SyncNodeCommandHandlerTests.cs

@@ -0,0 +1,79 @@
+using NSubstitute;
+using PnvPanel.Application.Admin.Nodes;
+using PnvPanel.Application.Common.Interfaces;
+using PnvPanel.Application.Common.Models;
+using PnvPanel.Application.Tests.TestSupport;
+using PnvPanel.Domain.Configs;
+using PnvPanel.Domain.Inbounds;
+using PnvPanel.Domain.Nodes;
+using Xunit;
+
+namespace PnvPanel.Application.Tests.Admin.Nodes;
+
+public class SyncNodeCommandHandlerTests
+{
+    private readonly IXuiPanelGateway _gateway = Substitute.For<IXuiPanelGateway>();
+
+    private static Node CreateNode() =>
+        Node.Register(
+            "node-1",
+            new Uri("https://node1.example.com"),
+            new NodeCredentials("admin", "protected"),
+            null
+        );
+
+    [Fact]
+    public async Task Handle_WhenInboundGoneFromPanelAndHasNoConfigs_RemovesIt()
+    {
+        using var dbContext = InMemoryDbContextFactory.Create();
+        var node = CreateNode();
+        var inbound = Inbound.FromRemote(node.Id, "old-id", VpnProtocol.Vless, "old", 443);
+
+        dbContext.Nodes.Add(node);
+        dbContext.Inbounds.Add(inbound);
+        await dbContext.SaveChangesAsync(CancellationToken.None);
+
+        _gateway
+            .ListInboundsAsync(Arg.Any<Node>(), Arg.Any<CancellationToken>())
+            .Returns(
+                Result.Success<IReadOnlyList<RemoteInboundInfo>>(
+                    [new RemoteInboundInfo("new-id", VpnProtocol.Vless, "new", 8443)]
+                )
+            );
+
+        var handler = new SyncNodeCommandHandler(dbContext, _gateway);
+        var result = await handler.Handle(new SyncNodeCommand(node.Id), CancellationToken.None);
+
+        Assert.True(result.IsSuccess);
+        Assert.DoesNotContain(dbContext.Inbounds.Local, i => i.RemoteInboundId == "old-id");
+        Assert.Contains(dbContext.Inbounds.Local, i => i.RemoteInboundId == "new-id");
+    }
+
+    [Fact]
+    public async Task Handle_WhenInboundGoneFromPanelButHasConfigs_MarksUnavailableInsteadOfRemoving()
+    {
+        using var dbContext = InMemoryDbContextFactory.Create();
+        var node = CreateNode();
+        var inbound = Inbound.FromRemote(node.Id, "old-id", VpnProtocol.Vless, "old", 443);
+        inbound.Publish("Old", [Guid.NewGuid()]);
+        var config = VpnConfig.Create(Guid.NewGuid(), inbound.Id, VpnProtocol.Vless, null);
+        config.AssignRemoteClient("external-id");
+
+        dbContext.Nodes.Add(node);
+        dbContext.Inbounds.Add(inbound);
+        dbContext.VpnConfigs.Add(config);
+        await dbContext.SaveChangesAsync(CancellationToken.None);
+
+        _gateway
+            .ListInboundsAsync(Arg.Any<Node>(), Arg.Any<CancellationToken>())
+            .Returns(Result.Success<IReadOnlyList<RemoteInboundInfo>>([]));
+
+        var handler = new SyncNodeCommandHandler(dbContext, _gateway);
+        var result = await handler.Handle(new SyncNodeCommand(node.Id), CancellationToken.None);
+
+        Assert.True(result.IsSuccess);
+        var stored = Assert.Single(dbContext.Inbounds.Local, i => i.RemoteInboundId == "old-id");
+        Assert.False(stored.IsAvailable);
+        Assert.False(stored.IsPublished);
+    }
+}

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

@@ -85,6 +85,54 @@ public class RevokeVpnConfigCommandHandlerTests
             );
     }
 
+    [Fact]
+    public async Task Handle_WhenInboundIsUnavailable_RevokesLocallyWithoutCallingGateway()
+    {
+        using var dbContext = InMemoryDbContextFactory.Create();
+        var userId = Guid.NewGuid();
+
+        var node = Node.Register(
+            "node-1",
+            new Uri("https://node1.example.com"),
+            new NodeCredentials("admin", "protected"),
+            null
+        );
+        var inbound = Inbound.FromRemote(node.Id, "1", VpnProtocol.Vless, "remark", 443);
+        inbound.MarkUnavailable();
+        var config = VpnConfig.Create(userId, inbound.Id, VpnProtocol.Vless, null);
+        config.AssignRemoteClient("external-id");
+
+        dbContext.Nodes.Add(node);
+        dbContext.Inbounds.Add(inbound);
+        dbContext.VpnConfigs.Add(config);
+        await dbContext.SaveChangesAsync(CancellationToken.None);
+
+        var handler = new RevokeVpnConfigCommandHandler(
+            dbContext,
+            _gateway,
+            _notifier,
+            FakeCurrentUser.Authenticated(userId),
+            _logger
+        );
+
+        var result = await handler.Handle(
+            new RevokeVpnConfigCommand(config.Id),
+            CancellationToken.None
+        );
+
+        Assert.True(result.IsSuccess);
+        Assert.Equal(ConfigStatus.Revoked, config.Status);
+        await _gateway
+            .DidNotReceive()
+            .RemoveClientAsync(
+                Arg.Any<Node>(),
+                Arg.Any<string>(),
+                Arg.Any<string>(),
+                Arg.Any<VpnProtocol>(),
+                Arg.Any<CancellationToken>()
+            );
+    }
+
     [Fact]
     public async Task Handle_WhenAlreadyRevoked_IsIdempotentAndDoesNotCallGateway()
     {

backend/tests/PnvPanel.Domain.Tests/Inbounds/InboundTests.cs

@@ -60,4 +60,24 @@ public class InboundTests
         Assert.False(inbound.IsPublished);
         Assert.Contains(roleId, inbound.AllowedRoleIds);
     }
+
+    [Fact]
+    public void FromRemote_CreatesAvailableInbound()
+    {
+        var inbound = Inbound.FromRemote(Guid.NewGuid(), "12", VpnProtocol.Vless, "Germany", 443);
+
+        Assert.True(inbound.IsAvailable);
+    }
+
+    [Fact]
+    public void MarkUnavailable_SetsIsAvailableAndIsPublishedFalse()
+    {
+        var inbound = Inbound.FromRemote(Guid.NewGuid(), "12", VpnProtocol.Vless, "Germany", 443);
+        inbound.Publish("Germany", [Guid.NewGuid()]);
+
+        inbound.MarkUnavailable();
+
+        Assert.False(inbound.IsAvailable);
+        Assert.False(inbound.IsPublished);
+    }
 }