商品二维码上传改为黏贴上传

frontend/src/CreateAskTasksPage.jsx

@@ -79,6 +79,7 @@ export default function CreateAskTasksPage({ api, librarySelection = [], onLibra
   const [addDialog, setAddDialog] = useState(null);
   const [publishOpen, setPublishOpen] = useState(false);
   const [linkCopied, setLinkCopied] = useState(false);
+  const productQrPasteRef = useRef(null);
   const processingLibrarySelection = useRef(false);
   const consumedLibrarySelectionKey = useRef("");
   useEffect(() => {
@@ -160,6 +161,35 @@ export default function CreateAskTasksPage({ api, librarySelection = [], onLibra
     if (productQrInputRef.current) productQrInputRef.current.value = "";
   }
 
+  useEffect(() => {
+    if (!publishOpen) return undefined;
+    const pasteProductQr = (event) => {
+      const imageItem = Array.from(event.clipboardData?.items || []).find((item) =>
+        item.kind === "file" && item.type.startsWith("image/"),
+      );
+      if (!imageItem) return;
+      const blob = imageItem.getAsFile?.();
+      if (!blob) {
+        setError("读取剪贴板图片失败，请重新复制后再试");
+        return;
+      }
+      const extension = blob.type === "image/jpeg" ? "jpg" : blob.type.split("/")[1] || "png";
+      const pastedFile = new File(
+        [blob],
+        `product-qr-${Date.now()}.${extension}`,
+        { type: blob.type, lastModified: Date.now() },
+      );
+      event.preventDefault();
+      selectProductQr(pastedFile);
+    };
+    window.addEventListener("paste", pasteProductQr);
+    const focusTimer = window.setTimeout(() => productQrPasteRef.current?.focus(), 0);
+    return () => {
+      window.clearTimeout(focusTimer);
+      window.removeEventListener("paste", pasteProductQr);
+    };
+  }, [publishOpen]);
+
   function clearAll() {
     if (busy) return;
     clearPageCache("create-ask-task");
@@ -814,12 +844,21 @@ export default function CreateAskTasksPage({ api, librarySelection = [], onLibra
               {form.product_qr_image ? (
                 <div className="ask-product-qr-preview">
                   <img src={form.product_qr_image} alt="商品二维码预览" />
-                  <div><strong>{form.product_qr_image_name || "商品二维码"}</strong><small>已上传商品二维码</small><button type="button" className="ghost-button" onClick={clearProductQr}>移除二维码</button></div>
+                  <div><strong>{form.product_qr_image_name || "商品二维码"}</strong><small>已上传商品二维码，可粘贴图片替换</small><button type="button" className="ghost-button" onClick={clearProductQr}>移除二维码</button></div>
                 </div>
               ) : (
-                <button type="button" className="ask-product-qr-upload" onClick={() => productQrInputRef.current?.click()}><span>＋ 上传商品二维码</span><small>支持 JPG、PNG、WEBP，单张不超过 5MB</small></button>
+                <button
+                  ref={productQrPasteRef}
+                  type="button"
+                  className="ask-product-qr-upload"
+                  onClick={() => productQrInputRef.current?.click()}
+                  aria-label="粘贴或选择商品二维码"
+                >
+                  <span>＋ 粘贴或上传商品二维码</span>
+                  <small>复制图片后按 Ctrl+V 粘贴，也可选择 JPG、PNG、WEBP，单张不超过 5MB</small>
+                </button>
               )}
-              <small className="ask-product-token-hint">淘口令和二维码至少填写一种，也可以两者都填写</small>
+              <small className="ask-product-token-hint">淘口令和二维码至少填写一种，也可以两者都填写；复制二维码图片后可直接按 Ctrl+V 粘贴</small>
             </div>
             <label>
               每个用户可领取问题数 *

frontend/src/TaskBoardPage.jsx

@@ -84,6 +84,10 @@ function TaskDetail({ task, close, onConfirmRefund, onCreateRefundUpload, onPoll
     setRefundFileError("");
     return true;
   }
+  function clearRefundProofFile() {
+    setRefundFile(null);
+    setRefundFileError("");
+  }
   useEffect(() => {
     if (!refundOpen || refundSession || !task.refund_endpoint) return undefined;
     let cancelled = false;
@@ -422,6 +426,15 @@ function TaskDetail({ task, close, onConfirmRefund, onCreateRefundUpload, onPoll
                 <span>剪贴板粘贴上传（可选）</span>
                 <strong>{refundFile ? "图片已粘贴，可直接确认" : "复制图片后，按 Ctrl+V 粘贴"}</strong>
                 <small>{refundFile ? `${refundFile.name} · ${(refundFile.size / 1024).toFixed(0)}KB` : "支持 JPG、PNG、WEBP，最大 10MB"}</small>
+                {refundFile && (
+                  <button
+                    type="button"
+                    className="refund-proof-remove"
+                    onClick={clearRefundProofFile}
+                  >
+                    移除图片
+                  </button>
+                )}
                 {refundFileError && <em>{refundFileError}</em>}
               </div>
               <label className="refund-proof-fallback">

frontend/src/admin.css

@@ -2929,6 +2929,20 @@
   font-size: 12px;
   font-style: normal;
 }
+.refund-proof-remove {
+  justify-self: start;
+  padding: 3px 7px;
+  border: 1px solid #f0b7c0;
+  border-radius: 6px;
+  background: #fff5f6;
+  color: #d23850;
+  font-size: 11px;
+  cursor: pointer;
+}
+.refund-proof-remove:hover {
+  border-color: #d23850;
+  background: #ffecef;
+}
 .refund-proof-fallback {
   display: inline-flex;
   justify-content: flex-start;
@@ -5148,6 +5162,11 @@
   text-align: left;
   cursor: pointer;
 }
+.ask-product-qr-upload:focus {
+  border-color: #1764e8;
+  outline: 0;
+  box-shadow: 0 0 0 3px rgba(23, 100, 232, .1);
+}
 .ask-product-qr-upload small {
   color: #8296ad;
   font-size: 10px;