fix: trade gate round 3 - the mount-time-captured dead command bus (ONE

root cause for every dead interaction) + retail's Total Items caption

The round-2 probes nailed it: the request seam fired for BOTH open
paths (use AND drag - "drag-release pick" -> "drag-on-player" ->
"request"), but no open-cmd, no wire-open, and no LiveCommandBus
drop-warning ever printed. MountSecureTrade captured
_bindings.Options.CommandBus() ONCE at mount time - the pre-session
surface whose Publish routes into a null route silently. CommandBus is
a Func for exactly this reason; the social mounts resolve it inside
each lambda. Every trade command - open (use + drag), accept (the
"unpressable" Trade button - the click FIRED, the publish died),
Clear All, close, and drop-on-grid staging - died on that one captured
bus. All six lambdas now resolve the Func per call.

Also: ID_SecureTrade_TotalItemsLabel probe-verified token-free
(fragments ["Total Items: ", ""], one ITEMS variable 0x004E8A23) and
composed via ResolveTemplate - the count texts read retail's exact
"Total Items: N". AD-95 RETIRED same-day.

The pre-feature stub-toast test row (drag-on-player option-on expecting
"Secure trade is not open.") now pins the SecureTradeRequested seam
instead. App suite 4,991/3 skips.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/AcDream.App/UI/Layout/SecureTradeUiController.cs

@@ -63,7 +63,11 @@ public sealed class SecureTradeUiController : IRetainedPanelController
         // ItemListCellTemplate from the lists' own 0x1000000E cell-template
         // attribute (0x1000033A) — same recipe as the vendor strips.
         uint SelfEmptySlotSprite = 0u,
-        uint PartnerEmptySlotSprite = 0u);
+        uint PartnerEmptySlotSprite = 0u,
+        // ID_SecureTrade_TotalItemsLabel composed per count — probe-verified
+        // token-free (fragments ["Total Items: ", ""], one ITEMS variable);
+        // null falls back to the bare number.
+        Func<int, string>? FormatTotalItems = null);
 
     private readonly Bindings _bindings;
     private readonly UiText? _partnerName;
@@ -255,10 +259,11 @@ public sealed class SecureTradeUiController : IRetainedPanelController
     private void SetCount(UiText? text, int count)
     {
         if (text is null) return;
-        // Numeric-only, the AD-85 numeric-fields disposition: the authored
-        // ID_SecureTrade_TotalItemsLabel template's variable shape is
-        // unverified, so the DATA shows without invented surrounding words.
-        string line = count.ToString();
+        // Retail's exact ID_SecureTrade_TotalItemsLabel — probe-verified
+        // token-free (gate round 3), composed through the same
+        // ResolveTemplate the confirmation dialogs use.
+        string line = _bindings.FormatTotalItems?.Invoke(count)
+            ?? count.ToString();
         text.LinesProvider = () => [new UiText.Line(line, Vector4.One)];
     }
 

src/AcDream.App/UI/RetailUiRuntime.cs

@@ -3524,7 +3524,11 @@ public sealed class RetailUiRuntime : IDisposable
             return;
         }
 
-        var bus = _bindings.Options.CommandBus();
+        // Gate round 3 root cause: CommandBus is a Func for a REASON — the
+        // live route attaches at session start, AFTER this mount. Capturing
+        // the surface once here published every trade command into the
+        // pre-session null route, silently (the exact reason the social
+        // mount resolves the Func inside each lambda). Resolve per call.
         Layout.SecureTradeUiController? controller =
             Layout.SecureTradeUiController.Bind(
                 layout,
@@ -3532,24 +3536,43 @@ public sealed class RetailUiRuntime : IDisposable
                     Trade: tradeView,
                     Objects: _bindings.Inventory.Objects,
                     ResolveIcon: _bindings.Inventory.ResolveIcon,
-                    OpenTrade: partner => bus.Publish(
+                    OpenTrade: partner => _bindings.Options.CommandBus().Publish(
                         new OpenTradeNegotiationsRuntimeCmd(partner)),
-                    CloseTrade: () => bus.Publish(
+                    CloseTrade: () => _bindings.Options.CommandBus().Publish(
                         new CloseTradeNegotiationsRuntimeCmd()),
-                    AddToTrade: item => bus.Publish(
+                    AddToTrade: item => _bindings.Options.CommandBus().Publish(
                         new AddToTradeRuntimeCmd(item)),
                     AcceptTrade: (selfAccepted, partnerAccepted, partner) =>
-                        bus.Publish(new AcceptTradeRuntimeCmd(
+                        _bindings.Options.CommandBus().Publish(new AcceptTradeRuntimeCmd(
                             partner, selfAccepted, partnerAccepted)),
-                    DeclineTrade: () => bus.Publish(new DeclineTradeRuntimeCmd()),
-                    ResetTrade: () => bus.Publish(new ResetTradeRuntimeCmd()),
+                    DeclineTrade: () => _bindings.Options.CommandBus().Publish(
+                        new DeclineTradeRuntimeCmd()),
+                    ResetTrade: () => _bindings.Options.CommandBus().Publish(
+                        new ResetTradeRuntimeCmd()),
                     SetWindowVisible: visible =>
                     {
                         if (visible) Host.ShowWindow(WindowNames.SecureTrade);
                         else Host.HideWindow(WindowNames.SecureTrade);
                     },
                     SelfEmptySlotSprite: selfEmptySlotSprite,
-                    PartnerEmptySlotSprite: partnerEmptySlotSprite));
+                    PartnerEmptySlotSprite: partnerEmptySlotSprite,
+                    // ID_SecureTrade_TotalItemsLabel (probe-verified
+                    // token-free; the ITEMS variable) — retires AD-95.
+                    FormatTotalItems: count =>
+                    {
+                        lock (_bindings.Assets.DatLock)
+                        {
+                            var strings = new DatStringResolver(_bindings.Assets.Dats);
+                            return strings.ResolveTemplate(
+                                0x23000001u,
+                                "ID_SecureTrade_TotalItemsLabel",
+                                new Dictionary<uint, string>
+                                {
+                                    [DatStringResolver.ComputeHash("ITEMS")] =
+                                        count.ToString(),
+                                }) ?? count.ToString();
+                        }
+                    }));
         if (controller is null)
         {
             Console.WriteLine("[M4] secure trade: required authored grids are missing.");

tests/AcDream.App.Tests/Net/LiveSessionCommandRouterTests.cs

@@ -610,6 +610,12 @@ public sealed class LiveSessionCommandRouterTests
             RemoveFriend: _ => { },
             ClearFriends: () => { },
             RequestLegacyFriends: () => { },
+            OpenTradeNegotiations: _ => { },
+            CloseTradeNegotiations: () => { },
+            AddToTrade: _ => { },
+            AcceptTrade: (_, _, _) => { },
+            DeclineTrade: () => { },
+            ResetTrade: () => { },
             ModifyCharacterSquelch: (_, _, _, _) => { },
             ModifyAccountSquelch: (_, _) => { },
             ModifyGlobalSquelch: (_, _) => { },

tests/AcDream.App.Tests/UI/ItemInteractionControllerTests.cs

@@ -1540,15 +1540,25 @@ public sealed class ItemInteractionControllerTests
         var payload = new ItemDragPayload(
             item, ItemDragSource.Inventory, SourceSlot: 0, SourceCell: new UiItemSlot());
 
+        var tradeRequests = new List<(uint Partner, uint Item)>();
+        h.Controller.SecureTradeRequested += (partner, dragged) =>
+            tradeRequests.Add((partner, dragged));
+
         bool result = h.Controller.PlaceIn3D(payload, targetPlayer);
 
         Assert.Equal(sendsGive, result);
         if (sendsGive)
+        {
             Assert.Equal(new[] { (targetPlayer, item, 1u) }, h.Gives);
+            Assert.Empty(tradeRequests);
+        }
         else
         {
+            // Trade feature (2026-08-14): the option-on drag now raises the
+            // SecureTradeRequested seam (retail's AttemptToTradeItem
+            // @ 0x0056DF80) instead of the pre-feature stub toast.
             Assert.Empty(h.Gives);
-            Assert.Contains(h.Toasts, text => text.Contains("Secure trade", StringComparison.Ordinal));
+            Assert.Equal([(targetPlayer, item)], tradeRequests);
         }
         Assert.Equal(Pack, h.Objects.Get(item)!.ContainerId);
     }

tests/AcDream.App.Tests/UI/Layout/PowerbarLayoutProbeTests.cs

@@ -103,6 +103,44 @@ public sealed class PowerbarLayoutProbeTests
         Console.WriteLine($"[pbprobe] scanned {scanned} layouts");
     }
 
+    /// <summary>2026-08-14 trade gate round 3: dump
+    /// ID_SecureTrade_TotalItemsLabel's fragments + variable hashes so the
+    /// count text can use ResolveTemplate if token-free (AD-95).</summary>
+    [Fact]
+    public void ProbeTotalItemsTemplate()
+    {
+        if (Environment.GetEnvironmentVariable("ACDREAM_PROBE_POWERBAR") != "1")
+            return;
+
+        var datDir = Environment.GetEnvironmentVariable("ACDREAM_DAT_DIR")
+            ?? Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
+                "Documents",
+                "Asheron's Call");
+        using var dats = new DatCollection(datDir, DatAccessType.Read);
+
+        uint hash = DatStringResolver.ComputeHash("ID_SecureTrade_TotalItemsLabel");
+        var table = dats.Get<DatReaderWriter.DBObjs.StringTable>(0x23000001u);
+        Console.WriteLine($"[pbprobe] key hash=0x{hash:X8} tableFound={table is not null}");
+        if (table is not null && table.Strings.TryGetValue(hash, out var entry))
+        {
+            for (int i = 0; i < entry.Strings.Count; i++)
+                Console.WriteLine($"[pbprobe] fragment[{i}]='{entry.Strings[i].Value}'");
+            for (int i = 0; i < entry.Variables.Count; i++)
+                Console.WriteLine($"[pbprobe] variable[{i}]=0x{entry.Variables[i]:X8}");
+            foreach (string candidate in new[]
+                { "COUNT", "NUM", "NUMBER", "ITEMS", "TOTAL", "AMOUNT", "N" })
+            {
+                Console.WriteLine(
+                    $"[pbprobe] hash('{candidate}')=0x{DatStringResolver.ComputeHash(candidate):X8}");
+            }
+        }
+        else
+        {
+            Console.WriteLine("[pbprobe] entry NOT FOUND in 0x23000001");
+        }
+    }
+
     private static ElementInfo? FindById(ElementInfo element, uint id)
     {
         if (element.Id == id) return element;