refactor: blob 이미지 가져오는 방식 수정

apps/cs/src/entities/attachment/api/attachment-service.ts

@@ -12,6 +12,13 @@ export class AttachmentApiService implements AttachmentService {
     );
     return response.data;
   }
+
+  public async getImageUrl(atflId: string): Promise<string> {
+    if (!atflId) return "";
+    const response = await fetch(`${ENDPOINT.ATTACH_SERVICE.IMAGES}/${atflId}`);
+    const blob = await response.blob();
+    return URL.createObjectURL(blob);
+  }
 }
 
 export const AttachmentApi = new AttachmentApiService();

apps/cs/src/entities/attachment/model/attachment-interface.ts

@@ -15,4 +15,5 @@ export interface Attachment {
 
 export interface AttachmentService {
   getAttachments: (atflCd: string) => Promise<Attachment[]>;
+  getImageUrl: (atflId: string) => Promise<string>;
 }