feat(desktop): 民居正面完整化与图集足迹

新增屋脊/檐口/木构粉墙/格窗/木门五个地块图块，可进屋民居以门为锚点绘制四宽三高完整立面（黛瓦正脊、檐口层次、木构白墙、格窗与木门）；新增 planFootprint 供生成阻挡判定，村民不会刷在建筑图块上。

2 files changed, 15 insertions, 1 deletions

diff --git a/src/LivingVillage.Desktop.Tests/DesktopTests.fs b/src/LivingVillage.Desktop.Tests/DesktopTests.fs
index 526d1af..e9713e5 100644
--- a/src/LivingVillage.Desktop.Tests/DesktopTests.fs
+++ b/src/LivingVillage.Desktop.Tests/DesktopTests.fs
@@ -102,7 +102,7 @@ type DesktopTests () =
         let renderPlan = VillageArt.sampleRenderPlan ()
         let blockedTiles =
             (renderPlan.Grounds |> List.map (fun (tile, _) -> VillageArt.worldTile renderPlan tile))
-            @ (renderPlan.Props |> List.map (fun prop -> VillageArt.worldTile renderPlan prop.Position))
+            @ VillageArt.planFootprint renderPlan
             |> List.map (fun tile -> tile.X, tile.Y)
             |> Set.ofList
         let sceneTileOf (position: Vec2) : TilePosition =
diff --git a/src/LivingVillage.Desktop.Tests/PrototypeTests.fs b/src/LivingVillage.Desktop.Tests/PrototypeTests.fs
index a403223..06b3250 100644
--- a/src/LivingVillage.Desktop.Tests/PrototypeTests.fs
+++ b/src/LivingVillage.Desktop.Tests/PrototypeTests.fs
@@ -291,6 +291,20 @@ type PrototypeTests () =
         Assert.AreEqual<int>(4, first.Interior.Elements.Length)
 
     [<TestMethod>]
+    member _.HouseFacadeCoversRoofEaveAndWalledDoorRow () =
+        let plan = VillageArt.sampleRenderPlan ()
+        let footprint = VillageArt.planFootprint plan |> Set.ofList
+        let door = scene.Homes |> List.head |> fun home -> VillageArt.worldTile plan home.Door
+
+        // The enterable home must present a full facade: ridge, eave, and a walled row with the door.
+        for dx in -2 .. 1 do
+            Assert.IsTrue(footprint.Contains({ X = door.X + dx; Y = door.Y - 2 } : TilePosition), sprintf "missing ridge tile dx=%d" dx)
+            Assert.IsTrue(footprint.Contains({ X = door.X + dx; Y = door.Y - 1 } : TilePosition), sprintf "missing eave tile dx=%d" dx)
+            Assert.IsTrue(footprint.Contains({ X = door.X + dx; Y = door.Y } : TilePosition), sprintf "missing wall tile dx=%d" dx)
+        // 12 house tiles + 2 bridge + 3 bamboo + 2 garden.
+        Assert.AreEqual<int>(19, footprint.Count)
+
+    [<TestMethod>]
     member _.FacingUsesTheActualMovementOrTargetVector () =
         Assert.AreEqual<VillageArt.FacingDirection>(VillageArt.EastFacing, VillageArt.directionFromVector { X = 1.0f; Y = 0.1f })
         Assert.AreEqual<VillageArt.FacingDirection>(VillageArt.WestFacing, VillageArt.directionFromVector { X = -1.0f; Y = 0.1f })