perf: Migrate HouseGumpAOS to DynamicGump (#2429)

## Summary
- Converts `HouseGumpAOS` from legacy `Gump` to `DynamicGump` with a private constructor and the static `DisplayTo` entry-point pattern.
- `AddPageButton`, `AddButtonLabeled`, and `AddList` helpers now write directly to the `DynamicGumpBuilder` via `ref` parameters.
- All internal re-display calls and the `HouseSign` / `ConfirmResizeHouseGump` callers route through `HouseGumpAOS.DisplayTo`.
- Field naming updated to underscore-prefix convention (`_house`, `_page`, `_from`, `_list`, `_hangerNumbers`, `_foundationNumbers`, `_postNumbers`, `_houseSigns`).

Projects/UOContent/Gumps/Houses/ConfirmResizeHouseGump.cs

@@ -62,7 +62,7 @@ public class ConfirmResizeHouseGump : StaticGump<ConfirmResizeHouseGump>
 
         if (info.ButtonID == 0)
         {
-            from.SendGump(new HouseGumpAOS(HouseGumpPageAOS.Customize, from, _house));
+            HouseGumpAOS.DisplayTo(from, _house, HouseGumpPageAOS.Customize);
             return;
         }
 

Projects/UOContent/Gumps/Houses/HouseGump.cs

@@ -23,11 +23,6 @@ namespace Server.Gumps
 
         protected override void BuildLayout(ref DynamicGumpBuilder builder)
         {
-            if (_house.Deleted)
-            {
-                return;
-            }
-
             builder.AddPage();
 
             builder.AddBackground(0, 0, 420, 430, 5054);
@@ -121,11 +116,6 @@ namespace Server.Gumps
 
         protected override void BuildLayout(ref DynamicGumpBuilder builder)
         {
-            if (_house.Deleted)
-            {
-                return;
-            }
-
             builder.AddPage();
 
             builder.AddBackground(0, 0, 420, 430, 5054);