enum 추가, cors 설정 추가

src/main/java/com/kamco/cd/kamcoback/common/api/CommonController.java

@@ -9,7 +9,5 @@ import org.springframework.web.bind.annotation.RestController;
 public class CommonController {
 
   @GetMapping("/sheets/{id}")
-  public void getSheetList() {
-
-  }
+  public void getSheetList() {}
 }

src/main/java/com/kamco/cd/kamcoback/common/dto/DetectionClassification.java

@@ -25,9 +25,9 @@ public enum DetectionClassification {
   private final String id;
   private final String desc;
 
-
   /**
-   * Optional: Helper method to get the enum from a String, case-insensitive, or return ETC if not found.
+   * Optional: Helper method to get the enum from a String, case-insensitive, or return ETC if not
+   * found.
    */
   public static DetectionClassification fromString(String text) {
     if (text == null || text.trim().isEmpty()) {

src/main/java/com/kamco/cd/kamcoback/common/enums/DetectionClassification.java

@@ -25,9 +25,9 @@ public enum DetectionClassification {
   private final String id;
   private final String desc;
 
-
   /**
-   * Optional: Helper method to get the enum from a String, case-insensitive, or return ETC if not found.
+   * Optional: Helper method to get the enum from a String, case-insensitive, or return ETC if not
+   * found.
    */
   public static DetectionClassification fromString(String text) {
     if (text == null || text.trim().isEmpty()) {