feat(ui): House tab ownership text — DisplayPurchaseTimeText + RuntimeHouseState

Derived the mechanism from the decomp before writing code: neither
gmHouseUI::PostInit @0x004a2710 nor gmMapUI::PostInit @0x004a1c70 sends a
HouseQuery, and six of gmHouseUI's seven Display* builders early-return on
m_pHouseData == 0. The only text a houseless character's House tab shows is
gmHouseUI::DisplayPurchaseTimeText @0x004a3110's expired branch (it doesn't
gate on m_pHouseData) — the local player's PropertyInt.HousePurchaseTimestamp
plus HouseSystem::HasPurchaseWaitPeriodExpired renders exactly "You may buy
another house immediately." for a fresh character. Exhaustive search of the
2013 EoR decomp, ACE, and the live DAT found zero support for a second
"You do not currently own a house." line the task brief described — this
commit ports what the decomp actually shows.

Ships:
- RuntimeHouseState: a minimal (no disposal, no construction-transaction
  Fault() point) Runtime owner per ISSUES #413's own sizing note, wired
  through GameEventWiring's existing HouseData/HouseStatus delegate holes,
  LiveSessionEventRouter, and GameRuntime.HouseOwner. Participates in
  RuntimeGenerationReset (new House stage) since a fresh login must not
  show a stale character's house state.
- HousePageController.Bindings.Lines/OnShown wired to real data; OnShown
  fires WorldSession.SendHouseQuery() on tab-open (AD-107: an acdream
  trigger, not a ported retail call site — filed in the divergence
  register).
- Fixed a real bug found along the way: HousePageController.Bind never
  wired UiTemplateListBox.TemplateResolver, so no row could ever render
  regardless of Lines content. Now reuses the Map tab's generic hotspot
  resolver.

Live-verified against a real local ACE server and the +Acdream character
(--session-config auto-select + a UI automation script): screenshot and
structural UI-tree dump both confirm the House tab renders exactly "You may
buy another house immediately." Graceful logout confirmed both launches.

ISSUES #413 narrowed to its one remaining piece: the six owned-house-only
Display* builders (DisplayBuyPayment/RentPayment/BuyTime/RentTimes/
Location/WarningText), unexercisable without a test character that owns a
house.

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

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

@@ -25,19 +25,22 @@ namespace AcDream.App.UI.Layout;
 /// </para>
 ///
 /// <para>
-/// <b>Scope (Batch C, 2026-08-17) — see ISSUES #413 for the full ledger.</b>
-/// This session shipped the mount (this class) and the wire PARSING
+/// <b>Scope — see ISSUES #413 for the full ledger.</b> Batch C
+/// (2026-08-17) shipped the mount (this class) and the wire PARSING
 /// groundwork (<c>GameEvents.ParseHouseData</c>/<c>ParseHouseStatus</c>/
 /// <c>ParseUpdateRentTime</c>/<c>ParseUpdateRentPayment</c>,
 /// <c>GameEventWiring</c>'s four delegate holes, the outbound HouseQuery
-/// action). <see cref="Bindings.Lines"/>/<see cref="Bindings.OnShown"/> are
-/// NOT yet wired to real data — no <c>RuntimeHouseState</c> owner exists,
-/// and none of the seven <c>Display*</c> line builders
-/// <c>DisplayHouseData</c> calls (including
-/// <c>DisplayPurchaseTimeText @0x004a3110</c>'s two fully-recovered
-/// literal strings) are ported. Until #413 closes, this page mounts with
-/// genuinely empty content — matching retail's own <c>PostInit</c>, which
-/// never calls <c>Update</c>/<c>DisplayHouseData</c> either.
+/// action). The House-tab ownership-text closer session (also 2026-08-17)
+/// wired <see cref="Bindings.Lines"/>/<see cref="Bindings.OnShown"/> to the
+/// minimal <c>RuntimeHouseState</c> owner and ported
+/// <c>DisplayPurchaseTimeText @0x004a3110</c>'s expired branch — a fresh
+/// houseless character's House tab now shows the single decomp-verified
+/// line "You may buy another house immediately." after the tab is opened,
+/// live-connected-gate-verified (screenshot + structural UI-tree dump
+/// against the real <c>+Acdream</c> character on a local ACE server). The
+/// other six <c>Display*</c> line builders <c>DisplayHouseData</c> calls
+/// (owned-house-only content: buy/rent payments and times, location,
+/// warning text) remain unported — ISSUES #413's surviving scope.
 /// </para>
 /// </summary>
 public sealed class HousePageController
@@ -52,7 +55,19 @@ public sealed class HousePageController
         // see ISSUES #413. NOT a ported retail call site (PostInit never
         // triggers a query) — an acdream convention, documented as such
         // (recon doc open item).
-        Action? OnShown = null);
+        Action? OnShown = null,
+        // Batch C House-ownership-text closer (2026-08-17): the ListBox's
+        // OWN row template (LayoutDesc 0x21000025 element 0x100001E7,
+        // live-DAT-confirmed by MapHousePanelSlotProbeTests) is resolved
+        // through the SAME generic (templateLayoutId, templateElementId) ->
+        // UiElement seam MapPageController.Bindings.TemplateResolver already
+        // wires for the Map tab's town hotspots — it performs the identical
+        // LayoutImporter.ImportInfos+Build operation, nothing map-specific
+        // about it. Without this, UiTemplateListBox.AddItemFromTemplateList
+        // always returns null (no resolver = no row), so Refresh silently
+        // produced zero rows regardless of Lines — the gap this session
+        // closes alongside the text composition itself.
+        Func<uint, uint, UiElement?>? TemplateResolver = null);
 
     private readonly UiTemplateListBox _listBox;
     private readonly Bindings _bindings;
@@ -76,6 +91,7 @@ public sealed class HousePageController
             return null;
         }
 
+        listBox.TemplateResolver = bindings.TemplateResolver;
         var controller = new HousePageController(listBox, bindings);
         controller.Refresh(bindings.Lines());
         return controller;

src/AcDream.App/UI/RetailUiRuntime.cs

@@ -3339,7 +3339,11 @@ public sealed class RetailUiRuntime : IDisposable
                 TemplateResolver: ResolveHotspotTemplate),
             House: new Layout.HousePageController.Bindings(
                 Lines: mh.HouseLines ?? (static () => Array.Empty<string>()),
-                OnShown: mh.HouseShown));
+                OnShown: mh.HouseShown,
+                // Same generic template resolver the Map tab's town
+                // hotspots use — see HousePageController.Bindings.
+                // TemplateResolver's own doc for why reusing it is correct.
+                TemplateResolver: ResolveHotspotTemplate));
 
         Layout.MapHousePanelController? controller;
         lock (_bindings.Assets.DatLock)