これでいける？

packages/backend/src/core/DriveService.ts

@@ -770,6 +770,35 @@ export class DriveService {
 		this.deletePostProcess(file, isExpired, deleter);
 	}
 
+	@bindThis
+	public async deleteFileImmediately(file: MiDriveFile, isExpired = false, deleter?: MiUser) {
+    if (file.storedInternal) {
+        // 内部ストレージのファイルを即時削除
+        this.internalStorageService.del(file.accessKey!);
+
+        if (file.thumbnailUrl) {
+            this.internalStorageService.del(file.thumbnailAccessKey!);
+        }
+
+        if (file.webpublicUrl) {
+            this.internalStorageService.del(file.webpublicAccessKey!);
+        }
+    } else if (!file.isLink) {
+        // オブジェクトストレージのファイルを即時削除
+        await this.deleteObjectStorageFile(file.accessKey!);
+
+        if (file.thumbnailUrl) {
+            await this.deleteObjectStorageFile(file.thumbnailAccessKey!);
+        }
+
+        if (file.webpublicUrl) {
+            await this.deleteObjectStorageFile(file.webpublicAccessKey!);
+        }
+    }
+    // 削除後の処理
+    this.deletePostProcess(file, isExpired, deleter);
+	}
+
 	@bindThis
 	private async deletePostProcess(file: MiDriveFile, isExpired = false, deleter?: MiUser) {
 		// リモートファイル期限切れ削除後は直リンクにする

packages/backend/src/server/api/endpoints/drive/files/delete.ts

@@ -65,7 +65,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.accessDenied);
 			}
 
-			await this.driveService.deleteFile(file, false, me);
+			await this.driveService.deleteFileImmediately(file, false, me);
 		});
 	}
 }