fix: ImageAnnotator确认时先上传图片到服务器，避免传递base64

components/image-annotator.tsx

@@ -1227,8 +1227,36 @@ export function ImageAnnotator({ imageUrl, onConfirm, onCancel, initialResizeMod
     }
   };
 
+  // 上传图片到服务器获取URL的辅助函数
+  const uploadImageToServer = async (dataUrl: string, filename: string): Promise<string> => {
+    try {
+      // 将 data URL 转换为 Blob
+      const response = await fetch(dataUrl);
+      const blob = await response.blob();
+      
+      // 创建 FormData 上传
+      const formData = new FormData();
+      formData.append("file", blob, filename);
+      
+      const uploadResponse = await fetch("/api/files/upload", {
+        method: "POST",
+        body: formData,
+      });
+      
+      if (!uploadResponse.ok) {
+        throw new Error("上传失败");
+      }
+      
+      const uploadResult = await uploadResponse.json();
+      return uploadResult.url;
+    } catch (error) {
+      console.error("上传图片失败:", error);
+      throw error;
+    }
+  };
+
   // 确认
-  const handleConfirm = () => {
+  const handleConfirm = async () => {
     // 优先使用处理后的图片（如果有）
     if (processedImageUrl) {
       // 如果有处理后的图片URL，直接使用它
@@ -1237,10 +1265,19 @@ export function ImageAnnotator({ imageUrl, onConfirm, onCancel, initialResizeMod
     }
     
     if (processedImageBase64) {
-      // 如果有处理后的图片Base64，转换为data URL
+      // 如果有处理后的图片Base64，先上传到服务器获取URL
       const mimeType = processType === "rmbg" || processType === "resize" ? "image/png" : "image/jpeg";
       const dataUrl = `data:${mimeType};base64,${processedImageBase64}`;
-      onConfirm(dataUrl);
+      const ext = processType === "rmbg" || processType === "resize" ? "png" : "jpg";
+      const filename = `processed-${Date.now()}.${ext}`;
+      
+      try {
+        toast.info("正在上传图片...");
+        const uploadedUrl = await uploadImageToServer(dataUrl, filename);
+        onConfirm(uploadedUrl);
+      } catch {
+        toast.error("上传失败，请重试");
+      }
       return;
     }
 
@@ -1263,9 +1300,17 @@ export function ImageAnnotator({ imageUrl, onConfirm, onCancel, initialResizeMod
       drawAction(exportCtx, action, 1);
     }
 
-    // 导出为 data URL
+    // 导出为 data URL，然后上传到服务器
     const dataUrl = exportCanvas.toDataURL("image/png");
-    onConfirm(dataUrl);
+    const filename = `annotated-${Date.now()}.png`;
+    
+    try {
+      toast.info("正在上传图片...");
+      const uploadedUrl = await uploadImageToServer(dataUrl, filename);
+      onConfirm(uploadedUrl);
+    } catch {
+      toast.error("上传失败，请重试");
+    }
   };
 
   // 弹窗内容