shp 생성 컨트롤러 이동, 주석추가

src/main/java/com/kamco/cd/kamcoback/inference/InferenceResultApiController.java

@@ -27,6 +27,7 @@ import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.validation.Valid;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.time.LocalDate;
 import java.util.List;
@@ -35,6 +36,7 @@ import java.util.UUID;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.data.domain.Page;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -373,6 +375,9 @@ public class InferenceResultApiController {
     }
 
     Path zipPath = Path.of(path);
+    if (!Files.isRegularFile(zipPath)) {
+      return ResponseEntity.status(HttpStatus.NOT_FOUND).body("추론이 완료되지 않아 파일이 생성되지 않았습니다.");
+    }
 
     return rangeDownloadResponder.buildZipResponse(zipPath, uid + ".zip", request);
   }