chore(command): remove unused args in execute()

app/src/main/kotlin/command/Command.kt

@@ -4,5 +4,5 @@ interface Command {
     val name: String
     val description: String
 
-    fun execute(args: String? = null)
+    fun execute()
 }

app/src/main/kotlin/command/commands/Add.kt

@@ -12,7 +12,7 @@ class Add(
     override val name = "add"
     override val description = "add product"
 
-    override fun execute(args: String?) {
+    override fun execute() {
         io.println("добавляем продукт")
         manager.addProduct(ProductReader(io).read())
     }

app/src/main/kotlin/command/commands/Exit.kt

@@ -11,7 +11,7 @@ class Exit(
     override val name = "exit"
     override val description = "stop app execution"
 
-    override fun execute(args: String?) {
+    override fun execute() {
         io.println("завершение процесса")
         stop()
     }