fix: owned avatar items use their shop tile's name, tooltip and rarity

The owned list (v4/items, defaultunlocked, lockeditems) took names from
the catalog dump, so colour variants read as asset names like
"(Shirt_Winter)", every rarity was 0 and every tooltip empty. 1,864 of
the 2,719 items in both lists disagreed with their shop tile.

Each owned row now takes FriendlyName, Tooltip and Rarity from the store
row with the same AvatarItemDesc (exact match; colour-variant combination
ids are case-sensitive). Rows with no shop tile keep the catalog name.
Rarity uses the same GiftRarity enum on both DTOs.

DorkNet.Server/Controllers/API/Avatar/V4/AvatarItemsController.cs

@@ -115,10 +115,10 @@ public class AvatarItemsController(
         // reverts to the real per-player wardrobe below. Bounded by the same
         // maxItems ceiling so a future watch build can't be over-fed.
         if (await serverSettings.IsAllAvatarItemsOwnedEnabledAsync())
-            return Ok(BuildEntireCatalogOwned(maxItems));
+            return await WithStoreInfoAsync(BuildEntireCatalogOwned(maxItems));
 
         var pid = this.CurrentPlayerId();
-        if (pid is not long me) return Ok(BuildDefaultUnlocked(maxItems));
+        if (pid is not long me) return await WithStoreInfoAsync(BuildDefaultUnlocked(maxItems));
 
         var avatar = await db.Avatars
             .Where(a => a.PlayerId == me)
@@ -134,7 +134,7 @@ public class AvatarItemsController(
             .Where(slug => StoreService.TryGetHairDyePayload(slug, out _))
             .Distinct(StringComparer.OrdinalIgnoreCase)
             .ToList();
-        if (owned.Count == 0 && ownedHairDyes.Count == 0) return Ok(BuildDefaultUnlocked(maxItems));
+        if (owned.Count == 0 && ownedHairDyes.Count == 0) return await WithStoreInfoAsync(BuildDefaultUnlocked(maxItems));
 
         var catalog = _catalog.Value;
         var equipped = ParseEquippedItemGuids(avatar?.OutfitSelections);
@@ -226,7 +226,34 @@ public class AvatarItemsController(
                 IsBaseAvatarItem = false,
             });
         }
-        return Ok(result);
+        return await WithStoreInfoAsync(result);
+    }
+
+    /// <summary>Give each owned row the same FriendlyName, Tooltip and
+    /// Rarity its shop tile shows. The client keeps this list's metadata
+    /// per item, and the catalog dump only carries asset names (e.g.
+    /// "(Shirt_Winter)" for colour variants) with no rarity or tooltip, so
+    /// the owned list disagreed with the shop for most items. Rows with no
+    /// shop tile keep the catalog name. Catalog DTOs are shared, so matched
+    /// rows are copied, never mutated.</summary>
+    private async Task<List<UnlockedAvatarItemDto>> WithStoreInfoAsync(List<UnlockedAvatarItemDto> rows)
+    {
+        var info = await StoreService.LoadAvatarItemStoreInfoAsync(db);
+        if (info.Count == 0) return rows;
+        return rows.Select(r => info.TryGetValue(r.AvatarItemDesc, out var s)
+            ? new UnlockedAvatarItemDto
+            {
+                AvatarItemType = r.AvatarItemType,
+                AvatarItemDesc = r.AvatarItemDesc,
+                AvatarItemId = r.AvatarItemId,
+                PlatformMask = r.PlatformMask,
+                FriendlyName = string.IsNullOrWhiteSpace(s.FriendlyName) ? r.FriendlyName : s.FriendlyName,
+                Tooltip = s.Tooltip,
+                Rarity = s.Rarity,
+                TagList = r.TagList,
+                IsBaseAvatarItem = r.IsBaseAvatarItem,
+            }
+            : r).ToList();
     }
 
     /// <summary>The free items every player owns
@@ -379,8 +406,8 @@ public class AvatarItemsController(
             .Select(guid => catalog.TryGetValue(guid, out var item) ? item : null)
             .Where(item => item is not null)
             .Select(item => item!)
-            .ToArray();
-        return Ok(rows);
+            .ToList();
+        return Ok(await WithStoreInfoAsync(rows));
     }
 
     /// <summary>Per-OutfitType slot index → list of GUIDs in that slot.