Magnifier inspection view for graphics cards

Cards are inspectable. While the magnifier inspection tray shows a card, a
mod-owned panel under the tray draws the card enlarged with its appearance
overlays and a turn-over button. No Harmony patches: a resident component
watches the inspection manager.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Decentralized/Items.cs

@@ -70,6 +70,7 @@ namespace Decentralized
         {
             var item = ItemDirectory.CreateEmptyItem(GpuId(spec.Model));
             item.SetGameItemType("MATERIAL");
+            InspectableHelper.InitInspectableItem(item);
             item.onLoaded = Refresh;
             // 右键"切换"翻面；外观差异用叠加图画在同一张底图上
             item.EnableTag(ToggleAppearanceHelper.TOGGLE_APPEARANCE_TAG);
@@ -77,8 +78,7 @@ namespace Decentralized
             item.canToggleSlotItemFunc = (_, _, _) => true;
             item.onToggleSlotItemFunc = (toggled, _, _) => Log.Guard("显卡翻面", () =>
             {
-                if (toggled.IsTag(BackTag)) toggled.ModifyTag(BackTag, t => t.Disable()); else toggled.EnableTag(BackTag);
-                Refresh(toggled);
+                Flip(toggled);
             });
             item.getItemSpriteModifierForItemFunc = Overlays;
             ModHelper.SetSource(item, ModInfo.Id, ModInfo.Name);
@@ -152,33 +152,51 @@ namespace Decentralized
             SyncValue(item);
         }
 
-        private static Sprite ModSprite(string key)
+        public static bool IsBack(GameItem item) => item.IsTag(BackTag);
+
+        public static void Flip(GameItem item)
         {
-            var mod = ModLoader.Mods.Find(m => m.Manifest.ID.Equals(ModInfo.Id));
-            return mod != null && mod.Sprites.TryGetValue(key, out var sprite) ? sprite : null;
+            if (IsBack(item)) item.ModifyTag(BackTag, t => t.Disable()); else item.EnableTag(BackTag);
+            Refresh(item);
         }
 
-        /// <summary>外观叠加图：正面三个维度，背面丝印与贴纸；烧毁的卡不叠。</summary>
-        private static List<ItemSpriteModifier> Overlays(GameItem item)
+        /// <summary>当前面的底图名与叠加图名：正面三个维度，背面丝印与贴纸；烧毁的卡不叠。</summary>
+        public static string LookKeys(GameItem item, List<string> overlays)
         {
-            var list = new List<ItemSpriteModifier>();
-            SyncValue(item);   // 归属变化（买下）后价格随之变回真实价值
-            if (item.IsTag(DeadTag)) return list;
             var u = ToUnit(item);
-            var keys = new List<string>();
-            if (!item.IsTag(BackTag))
+            bool back = IsBack(item);
+            string brand = u.Label.Brand == Hardware.Probidia ? "gpu_probidia" : "gpu_pmd";
+            if (u.Dead) return back ? "gpu_burnt_b" : "gpu_burnt_f";
+            if (!back)
             {
-                if (u.Look.Fan > 0) keys.Add("gpu_ov_fan" + u.Look.Fan);
-                if (u.Look.Fingers > 0) keys.Add("gpu_ov_fin" + u.Look.Fingers);
-                if (u.Look.Bracket > 0) keys.Add("gpu_ov_brk" + u.Look.Bracket);
+                if (u.Look.Fan > 0) overlays.Add("gpu_ov_fan" + u.Look.Fan);
+                if (u.Look.Fingers > 0) overlays.Add("gpu_ov_fin" + u.Look.Fingers);
+                if (u.Look.Bracket > 0) overlays.Add("gpu_ov_brk" + u.Look.Bracket);
             }
             else
             {
                 // 丝印：0 标称型号；1 印的是真实芯片型号；2 标称型号但字歪（重印过）
                 string model = u.Look.Print == 1 && u.FakeOf != null ? u.FakeOf : u.Model;
-                keys.Add((u.Look.Print == 2 ? "gpu_ov_txs_" : "gpu_ov_txt_") + model.ToLowerInvariant());
-                if (u.Look.Sticker > 0) keys.Add("gpu_ov_stk" + u.Look.Sticker);
+                overlays.Add((u.Look.Print == 2 ? "gpu_ov_txs_" : "gpu_ov_txt_") + model.ToLowerInvariant());
+                if (u.Look.Sticker > 0) overlays.Add("gpu_ov_stk" + u.Look.Sticker);
             }
+            return brand + (back ? "_b" : "_f");
+        }
+
+        public static Sprite ModSprite(string key)
+        {
+            var mod = ModLoader.Mods.Find(m => m.Manifest.ID.Equals(ModInfo.Id));
+            return mod != null && mod.Sprites.TryGetValue(key, out var sprite) ? sprite : null;
+        }
+
+        /// <summary>物品栏里的外观叠加图。</summary>
+        private static List<ItemSpriteModifier> Overlays(GameItem item)
+        {
+            var list = new List<ItemSpriteModifier>();
+            SyncValue(item);   // 归属变化（买下）后价格随之变回真实价值
+            if (item.IsTag(DeadTag)) return list;
+            var keys = new List<string>();
+            LookKeys(item, keys);
             int priority = 0;
             foreach (var k in keys)
             {