refactor event

src/utils/imageCompression.ts

@@ -3,16 +3,31 @@ import imageCompression from "browser-image-compression";
 const PHOTO_MAX_SIZE_MB = 300 / 1024;
 const PHOTO_MAX_WIDTH_OR_HEIGHT = 1920;
 
+/**
+ * 转为真正的 File，避免压缩库返回 Blob 后 FormData 使用默认文件名 blob。
+ */
+function normalizeUploadImageFile(source: File, compressed: Blob): File {
+	if (compressed instanceof File && compressed.name) {
+		return compressed;
+	}
+
+	return new File([compressed], source.name || "upload-image", {
+		type: compressed.type || source.type,
+		lastModified: source.lastModified
+	});
+}
+
 /**
  * 压缩上传图片，统一限制到 300 KB。
  */
 export async function compressUploadImage(file: File): Promise<File> {
-	return await imageCompression(file, {
+	const compressedFile = await imageCompression(file, {
 		maxSizeMB: PHOTO_MAX_SIZE_MB,
 		maxWidthOrHeight: PHOTO_MAX_WIDTH_OR_HEIGHT,
 		useWebWorker: true,
 		initialQuality: .86
 	});
+	return normalizeUploadImageFile(file, compressedFile);
 }
 
 /**