feat: implement comprehensive item management system with admin UI, API, and asset handling utilities.

bot/modules/inventory/inventory.view.ts

@@ -1,6 +1,7 @@
 import { EmbedBuilder } from "discord.js";
 import type { ItemUsageData } from "@shared/lib/types";
 import { EffectType } from "@shared/lib/constants";
+import { resolveAssetUrl } from "@shared/lib/assets";
 
 /**
  * Inventory entry with item details
@@ -43,8 +44,9 @@ export function getItemUseResultEmbed(results: string[], item?: { name: string,
 
     if (isLootbox && item) {
         embed.setTitle(`🎁 ${item.name} Opened!`);
-        if (item.iconUrl) {
-            embed.setThumbnail(item.iconUrl);
+        const resolvedIconUrl = resolveAssetUrl(item.iconUrl);
+        if (resolvedIconUrl) {
+            embed.setThumbnail(resolvedIconUrl);
         }
     } else {
         embed.setTitle(item ? `✅ Used ${item.name}` : "✅ Item Used!");