feature(app): add executor

app/src/main/kotlin/Main.kt

@@ -1,16 +1,5 @@
-import command.CommandManager
-import command.commands.*
-import io.ConsoleHandler
-import app.AppInitializer
+import app.AppExecutor
 
 fun main() {
-    val io = ConsoleHandler()
-    val manager = CommandManager()
-
-    AppInitializer().setup(manager, io)
-
-    while (true) {
-        val input = readln()
-        manager.initCommand(input, io)
-    }
+    AppExecutor().exec()
 }

app/src/main/kotlin/app/AppExecutor.kt

@@ -0,0 +1,19 @@
+package app
+
+import app.AppInitializer
+import command.CommandManager
+import io.ConsoleHandler
+
+class AppExecutor {
+    fun exec() {
+        val io = ConsoleHandler()
+        val manager = CommandManager()
+
+        AppInitializer().setup(manager, io)
+
+        while (true) {
+            val input = readln()
+            manager.initCommand(input, io)
+        }
+    }
+}