[O] Make data dir if not exist

src/main/java/icu/samnyan/aqua/AquaServerApplication.kt

@@ -1,9 +1,11 @@
 package icu.samnyan.aqua
 
+import icu.samnyan.aqua.net.utils.EmailService
 import icu.samnyan.aqua.sega.aimedb.AimeDbServer
 import icu.samnyan.aqua.spring.util.AutoChecker
 import org.springframework.boot.SpringApplication
 import org.springframework.boot.autoconfigure.SpringBootApplication
+import java.io.File
 
 @SpringBootApplication
 class AquaServerApplication
@@ -12,11 +14,21 @@ class AquaServerApplication
  * Main method, entry point of the application
  */
 fun main(args: Array<String>) {
+    // If data/ is not found, create it
+    File("data").mkdirs()
+
+    // Run the application
     val ctx = SpringApplication.run(AquaServerApplication::class.java, *args)
 
+    // Start the AimeDbServer
     val aimeDbServer = ctx.getBean(AimeDbServer::class.java)
     aimeDbServer.start()
 
+    // Start the AutoChecker
     val checker = ctx.getBean(AutoChecker::class.java)
     checker.check()
+
+    // Test the email service
+    val emailService = ctx.getBean(EmailService::class.java)
+    emailService.testConnection()
 }