feat: Introduce success and info embeds, add related user tracking to economy transactions, and refine trade interaction feedback and thread cleanup.

src/modules/inventory/inventory.service.ts

@@ -118,7 +118,7 @@ export const inventoryService = {
             const totalPrice = item.price * quantity;
 
             // Deduct Balance using economy service (passing tx ensures atomicity)
-            await economyService.modifyUserBalance(userId, -totalPrice, 'PURCHASE', `Bought ${quantity}x ${item.name}`, txFn);
+            await economyService.modifyUserBalance(userId, -totalPrice, 'PURCHASE', `Bought ${quantity}x ${item.name}`, null, txFn);
 
             await inventoryService.addItem(userId, itemId, quantity, txFn);