Add barrel sorting functionality with optional barrel name override

inventoryClient.lua

@@ -1384,7 +1384,17 @@ local function main()
             end
         end,
 
-        -- Task 4: Touch event listener (both monitors)
+        -- Task 4: Client barrel auto-sort (sends to master)
+        function()
+            if CLIENT_BARREL_NAME == "" then return end
+            print("[OK]   Client barrel: " .. CLIENT_BARREL_NAME)
+            while true do
+                sendToMaster({ type = "sort_barrel", barrelName = CLIENT_BARREL_NAME })
+                sleep(2)
+            end
+        end,
+
+        -- Task 5: Touch event listener (both monitors)
         function()
             while true do
                 local event, side, x, y = os.pullEvent("monitor_touch")

inventoryManager.lua

@@ -2097,8 +2097,9 @@ end
 -- Barrel auto-sort
 -------------------------------------------------
 
-local function sortBarrel()
-    local barrel = peripheral.wrap(BARREL_NAME)
+local function sortBarrel(barrelOverride)
+    local barrelTarget = (barrelOverride and barrelOverride ~= "") and barrelOverride or BARREL_NAME
+    local barrel = peripheral.wrap(barrelTarget)
     if not barrel then return end
 
     local contents = barrel.list()
@@ -3181,6 +3182,10 @@ local function main()
                         saveDisabledRecipes()
                         smelterNeedsRedraw = true
                         pcall(broadcastState)
+                    elseif message.type == "sort_barrel" and message.barrelName then
+                        print("[NET] Sort barrel: " .. message.barrelName)
+                        pcall(sortBarrel, message.barrelName)
+                        pcall(broadcastState)
                     elseif message.type == "craft" and message.recipeIdx then
                         print(string.format("[NET] Craft request: recipe #%d", message.recipeIdx))
                         local ok, err = craftItem(message.recipeIdx)