fix(ui): night-round review — F11/F13/F14/F15 one-liners

F11: logs when a Map tab town-marker's template resolves to something
other than a UiButton — that path previously silently skipped the
TooltipText write with no diagnostic, leaving a mounted-but-empty
tooltip popup indistinguishable from "no template configured".

F13: RetailSkillFormula.FormatFormula now reads Attribute1Multiplier/
Attribute2Multiplier/AdditiveBonus/Divisor through the SAME unsigned
reinterpretation TryCalculate already uses (this class's own doc
comment already stated the invariant; FormatFormula just didn't follow
it). A high-bit-set value would previously both mis-gate hasAttr1/
hasAttr2 and print a negative number, out of sync with what
TryCalculate actually computes with for the same formula. Added
regression tests, empirically verified to fail without the fix.

F14: documented the RefreshHouseMarker gap rather than guessing at the
byte-decode — Position::get_outside_cell_id @0x004527b0 is itself
BN-mangled (its `(eax_2 - eax_2) & objcell_id` return is the same
decompiler-obscures-a-real-conditional artifact class this round hit
elsewhere) and depends on LandDefs::adjust_to_outside, a genuinely
larger port than this round's other findings. HousePosition is wired
() => null in production today (ISSUES #413's remaining scope), so
this method is currently unreachable; left a TODO citing the retail
call chain for whenever that lands.

F15: fixed RefreshCoordinatesAndPlayerMarker's gate to AND-on-both-
present, matching gmMapUI::Update @0x004a2078's exact
`if (m_pCoordinateText != 0 && m_pPlayerLocationIcon != 0)` condition.
The prior `_coordinateText is null && _playerIcon is null` check only
skipped when BOTH were absent (proceeding whenever EITHER was
present), letting coordinate text and the player marker update
independently instead of as the single gated unit retail treats them
as. Added a regression test (player-icon template resolution failure
must also skip the coordinate-text write), empirically verified to
fail without the fix.

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

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

@@ -229,6 +229,49 @@ public sealed class MapPageControllerTests
         Assert.False(playerIcon!.Visible);
     }
 
+    [Fact]
+    public void Refresh_PlayerIconTemplateResolutionFails_CoordinateTextStaysEmptyToo()
+    {
+        // F15 (night-round review): gmMapUI::Update @0x004a2078's gate is
+        // `if (m_pCoordinateText != 0 && m_pPlayerLocationIcon != 0)` — BOTH
+        // widgets present, not "at least one". A player-icon template
+        // resolution failure (leaving _playerIcon null, e.g. a future DAT
+        // regression) must skip the coordinate-text write too, not just the
+        // marker placement — the OLD `_coordinateText is null &&
+        // _playerIcon is null` gate only skipped when BOTH were absent, so
+        // it would have written coordinate text here even with a missing
+        // player icon.
+        const uint cellId = 0x11CE0001u; // outdoor: TryFromCell succeeds.
+        Assert.True(RadarCoordinates.TryFromCell(cellId, out _));
+
+        ElementInfo rootInfo = FixtureLoader.LoadMapHouseHostInfos();
+        ImportedLayout layout = FixtureLoader.LoadMapHouseHost();
+        var callbacks = new MapHousePanelController.Callbacks(
+            Toggle: () => { },
+            Map: new MapPageController.Bindings(
+                CurrentCalendar: static () => default,
+                PlayerCellId: () => cellId,
+                HousePosition: static () => (CreateObject.ServerPosition?)null,
+                // Simulates the player icon's own standalone template
+                // resolution failing (ResolveSwallowedIcon's own null path)
+                // while every other swallowed-icon/town-marker resolution
+                // still succeeds normally.
+                TemplateResolver: (_, e) => e == MapPageController.PlayerIconId
+                    ? null
+                    : new UiText { Width = 10f, Height = 10f, DatElementId = e }),
+            House: new HousePageController.Bindings(Lines: static () => Array.Empty<string>()));
+
+        MapHousePanelController? controller = MapHousePanelController.Bind(rootInfo, layout, callbacks);
+        Assert.NotNull(controller);
+
+        Assert.Null(
+            UiElement.FindDescendant(controller!.Root, MapPageController.PlayerIconId));
+
+        var coordinateText = Assert.IsType<UiText>(
+            UiElement.FindDescendant(controller.Root, MapPageController.CoordinateTextId));
+        Assert.Empty(coordinateText.LinesProvider());
+    }
+
     [Fact]
     public void Bind_HouseMarker_NullPosition_StaysHidden()
     {