first implementation

backend/src/main/java/com/aiteacher/AiTeacherApplication.java

@@ -0,0 +1,14 @@
+package com.aiteacher;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableAsync;
+
+@SpringBootApplication
+@EnableAsync
+public class AiTeacherApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(AiTeacherApplication.class, args);
+    }
+}