hotfix: 누락된 config 파일 추가

Author: move-hoon

apis/src/main/kotlin/org/yapp/apis/config/SwaggerProperties.kt

@@ -0,0 +1,20 @@
+package org.yapp.apis.config
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+
+@ConfigurationProperties(prefix = "swagger")
+data class SwaggerProperties(
+    val servers: List<ServerConfig> = emptyList(),
+    val info: InfoConfig = InfoConfig()
+) {
+    data class ServerConfig(
+        val url: String,
+        val description: String
+    )
+    
+    data class InfoConfig(
+        val title: String = "YAPP API",
+        val description: String = "YAPP API Documentation",
+        val version: String = "v1"
+    )
+}