fix(ui): night-round review — F9/F10/F12 register + structure riders

F9: filed register row AD-108 for MapPageController.ResolveSwallowedIcon
— the standalone re-import of the Map tab's player/house icons, which
m_pMap's own Type-1 UiButton authoring swallows as dat children
(UiButton.ConsumesDatChildren). This adaptation was implemented but
never had a register row.

F10: extracted the popup-locator pair (0x10000395/0x21000041),
previously duplicated as three separately-cited private constants
across UiItemSlot.cs, RetailTooltipPresenter.cs, and
MapPageController.cs, into ONE public pair on RetailTooltipPresenter
(SharedPopupSkinRootElementId/SharedPopupSkinLayoutDid) with a single
canonical citation. The other two sites now reference it instead of
carrying their own copy.

F12: fixed TS-85's SetTooltip-site arithmetic. The register (and a
mirrored ISSUES.md log entry) claimed "15 known sites, all accounted
for" — recounting the row's own enumerated list finds 17 distinct
sites (the tally had dropped gmPaperDollUI::UpdateItemSlotTooltip
@0x004A52EF and undercounted by one more), of which 16 are ported and
one — UIElement_Text::RecalculateTruncation @0x00466F80, the headline
highest-volume site sub-mechanism (1) itself named as deliberately
deferred — was never actually closed. The "all 15 accounted for"
close was wrong twice over: wrong count, and a site the row's own text
already scoped as open.

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

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

@@ -174,7 +174,7 @@ public sealed class MapHousePanelControllerTests
         // GetTooltipText()) — the retail SetTooltip/m_TTText mechanism, NOT
         // the DAT-authored AuthoredTooltipText path. The popup-skin locator
         // is unconditionally required even on the runtime-text path (see
-        // MapPageController.MarkerTooltipRootElementId's doc).
+        // RetailTooltipPresenter.SharedPopupSkinRootElementId's doc).
         Assert.All(townMarkers, c => Assert.NotEqual(0u, c.AuthoredTooltipRootElementId));
         Assert.All(townMarkers, c => Assert.NotEqual(0u, c.AuthoredTooltipLayoutDid));
         Assert.All(townMarkers, c => Assert.IsType<UiButton>(c));