Add PICKUP_ITEM cmd handler

Assets/Scripts/CECHostPlayer.cs

@@ -221,9 +221,72 @@ public class CECHostPlayer : EC_Player
             case int value when value == EC_MsgDef.MSG_HST_ITEMOPERATION:
                 OnMsgHstItemOperation(Msg);
                 break;
+            case int value when value == EC_MsgDef.MSG_HST_PICKUPITEM:
+                OnMsgHstPickupItem(Msg);
+                break;
         }
     }
 
+    public void OnMsgHstPickupItem(in ECMSG Msg)
+    {
+        var data = Msg.dwParam1 as byte[];
+        int cmd = Convert.ToInt32(Msg.dwParam2);
+        switch (cmd)
+        {
+            case CommandID.PICKUP_ITEM:
+            {
+                // Parse the pickup item data from the server response
+                if (data != null && data.Length >= 16)
+                {
+                    int tid = BitConverter.ToInt32(data, 0);
+                    int expire_date = BitConverter.ToInt32(data, 4);
+                    uint iAmount = BitConverter.ToUInt32(data, 8);
+                    uint iSlotAmount = BitConverter.ToUInt32(data, 12);
+                    byte byPackage = data[16];
+                    byte bySlot = data[17];
+                    
+                    Debug.Log($"[Inventory] PICKUP_ITEM: tid={tid}, expire_date={expire_date}, iAmount={iAmount}, iSlotAmount={iSlotAmount}, byPackage={byPackage}, bySlot={bySlot}");
+                    
+                    // Notify pickupItem script about successful pickup
+                    pickupItem pickupScript = UnityEngine.Object.FindFirstObjectByType<pickupItem>();
+                    if (pickupScript != null)
+                    {
+                        pickupScript.OnPickupSuccess(tid);
+                    }
+                    
+                    // Create new inventory item data
+                    var newItem = new InventoryItemData
+                    {
+                        Package = byPackage,
+                        Slot = bySlot,
+                        TemplateId = tid,
+                        ExpireDate = expire_date,
+                        State = 0,
+                        Count = (int)iAmount,
+                        Crc = 0,
+                        Content = null
+                    };
+                    
+                    // Add item to inventory
+                    EC_Inventory.SetItem(byPackage, bySlot, newItem);
+                    
+                    Debug.Log($"[Inventory] Successfully added item {tid} to package {byPackage}, slot {bySlot} with count {iAmount}");
+                    
+                    // Trigger UI refresh if an EC_InventoryUI is present in scene
+                    var ui = GameObject.FindFirstObjectByType<EC_InventoryUI>();
+                    if (ui != null)
+                    {
+                        ui.RefreshAll();
+                    }
+                }
+                else
+                {
+                    Debug.LogWarning("[Inventory] PICKUP_ITEM: Invalid data length");
+                }
+                break;
+            }
+        }
+    }
     public void OnMsgHstItemOperation(ECMSG Msg)
     {
         var data = Msg.dwParam1 as byte[];