fix(chat): consolidated-review fixes — retail /help Detail extraction, seam wiring test

SHOULD-FIX 1: RetailClientCommandCatalog's ~45 catalog leaf verbs were
showing acdream-authored Summary text for /help <verb> instead of
retail's own Detail_HelpType(2) text. Byte-swept every Help* handler
against the PDB-paired acclient.exe (verified MATCH), confirmed each
Detail/Summary branch by reading the actual decompiled if/else shape
(address order and string length both proved unreliable alone), and
fixed a sweep_weenie_strings.py 800-char truncation bug that silently
dropped several longer Detail branches. Resolved every ambiguous
CmdHashData-registered verb (hor/hr/hom/hoa/alh/ah/friends_add/
friends_remove/squelch/unsquelch) by reading for Binary Ninja's
nullptr-4th-arg decompiler artifact instead of trusting it. Coverage:
42 of 47 distinct catalog Definitions verbatim-extracted, 4
confirmed-null (index/clist/on/off register with a genuinely null help
pointer — DoHelp falls to UnknownCommand for these, now reproduced),
1 honest UNVERIFIED (messagetypes builds its text from a runtime enum
table, not a static string). ChatCommandRouter now prefers retail
Detail text over the catalog summary; RetailCommandHelpTable's class
doc no longer overclaims its own scope.

SHOULD-FIX 2: extracted the a5a7eb4f-class OnInterfaceText wiring into
a testable CreateChatViewModel method and added
ComposedChatViewModelWiresOnInterfaceTextToSpewBox, which the prior
FakeFactory-based test suite could never exercise.

SHOULD-FIX 3: retires register row AP-113. DoLifestone/DoMarketplace
print their own 0x1A refusal text (byte-recovered, UTF-16LE) instead
of falling through to the generic 0x26 fallback; ChatCommandRouter's
comment corrected to state the fallback's real scope.

SHOULD-FIX 4: corrected the divergence register's stale AP section
header sentence about AP-190's opacity default (refuted by cc582899).

NITs: (a) HeadlessStaticStateAudit routes through the injected
HeadlessDiagnosticWriter instead of Console.WriteLine; (b) a bounded
300-pump liveness diagnostic on the IsQuiescent conductor gate (no
retry, no behavior change); (c) fixed the #365 hydration test's doc
comment contradiction against diagnosis §8; (d) the 0x26 fallback
dispatches on WeenieErrorMessages' own Type instead of hardcoding
ClientLocal.

Full Release suite: 12,553 passed / 4 skipped / 0 failed (baseline
03404b71: 12,542/4/0; net +11 tests, zero regressions).

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

src/AcDream.App/Composition/InteractionRetainedUiComposition.cs

@@ -419,6 +419,33 @@ internal sealed class RetailInteractionRetainedUiCompositionFactory
             incrementBusy: itemInteraction.IncrementBusyCount,
             canSend: () => late.Session.IsInWorld);
 
+    /// <summary>
+    /// Consolidated-review round (2026-08-10), SHOULD-FIX 2: extracted out
+    /// of <see cref="CreateRetainedUi"/> so this specific wiring — the
+    /// composed <see cref="ChatVM.OnInterfaceText"/> hook that routes
+    /// <c>ChatCommandRouter</c>'s <c>0x1A</c> refusals to
+    /// <see cref="RuntimeCommunicationState.AddText"/>/SpewBox — is
+    /// independently testable without the rest of <see cref="CreateRetainedUi"/>'s
+    /// GPU/dat/UiHost dependencies (all null-safe in a pure unit test; this
+    /// method only touches <see cref="InteractionRetainedUiDependencies.Communication"/>).
+    /// The a5a7eb4f defect class (a composed hook wired but never
+    /// transferred) is exactly what this seam existing untested let slip
+    /// through — see <c>InteractionRetainedUiCompositionTests.ComposedChatViewModelWiresOnInterfaceTextToSpewBox</c>.
+    /// </summary>
+    internal static ChatVM CreateChatViewModel(InteractionRetainedUiDependencies d) =>
+        new ChatVM(
+            d.Communication.Chat,
+            displayLimit: 200,
+            commandTargets: d.Communication.CommandTargets)
+        {
+            // Issue #363 / #367: routes ChatCommandRouter's 0x1A
+            // (ClientLocal) command refusals to the same SpewBox
+            // chokepoint every other interface-text producer uses,
+            // instead of the chat scroll.
+            OnInterfaceText = text =>
+                d.Communication.AddText(text, RetailLogTextType.ClientLocal),
+        };
+
     public RetainedUiComposition CreateRetainedUi(
         InteractionRetainedUiDependencies d,
         InteractionUiLateBindings late,
@@ -559,18 +586,7 @@ internal sealed class RetailInteractionRetainedUiCompositionFactory
 
             host.Root.Width = d.Window.Size.X;
             host.Root.Height = d.Window.Size.Y;
-            var chat = new ChatVM(
-                d.Communication.Chat,
-                displayLimit: 200,
-                commandTargets: d.Communication.CommandTargets)
-            {
-                // Issue #363 / #367: routes ChatCommandRouter's 0x1A
-                // (ClientLocal) command refusals to the same SpewBox
-                // chokepoint every other interface-text producer uses,
-                // instead of the chat scroll.
-                OnInterfaceText = text =>
-                    d.Communication.AddText(text, RetailLogTextType.ClientLocal),
-            };
+            var chat = CreateChatViewModel(d);
             AcDream.UI.Abstractions.Panels.Settings.SettingsStore? layoutStore =
                 d.Settings.LayoutStore;
             RetailUiPersistenceBindings? persistence = layoutStore is null